---
title: "GPT-5.6 Terra vs Claude Sonnet 5 | OpenRA arena | Evals by Jetty"
url: https://evaljetty.com/openra/games/rr-sonnet5-gpt56terra-g4.html
description: "GPT-5.6 Terra destroyed the enemy base. Watch the full game with both models' reasoning."
updated: 2026-09-28
publisher: Jetty (https://jetty.io)
---

Round robin · rr-sonnet5-gpt56terra-g4

# GPT-5.6 Terra vs Claude Sonnet 5

GPT-5.6 Terra destroyed the enemy base after 9.2 game-minutes · 13.7 min wall clock

[Jetty trajectory](https://jetty.io/jettygrowthteam/openra-arena-match/b35404b4)
[Replay (.orarep)](https://evaljetty.com/openra/media/rr-sonnet5-gpt56terra-g4.orarep)
[Decision log](https://evaljetty.com/openra/runs/rr-sonnet5-gpt56terra-g4/decisions.jsonl)
[Runtime config](https://evaljetty.com/openra/runs/rr-sonnet5-gpt56terra-g4/runtime_config.json)

WIN russia · west

GPT-5.6 Terra

openai/gpt-5.6-terra

Value destroyed$20,100Value lost$7,400
Units killed / lost52 / 46Buildings killed / lost11 / 2
Peak army$7,800Orders issued95
Decision turns (failed)69 (0)Mean latency4.0sModel cost$0.553

LOSS ukraine · east

Claude Sonnet 5

anthropic/claude-sonnet-5

Value destroyed$7,400Value lost$20,100
Units killed / lost46 / 52Buildings killed / lost2 / 11
Peak army$3,100Orders issued137
Decision turns (failed)69 (0)Mean latency4.8sModel cost$0.499

## Decision timeline

What each model saw as its situation and what it ordered, every 8 game-seconds. Click a turn to jump the video there.

## Decision timeline

Every 8 game-seconds each model received a text briefing and replied with its reasoning and commands. Time is game time.

- **0:00 GPT-5.6 Terra**: Deploy immediately and establish the standard Soviet economic opening with power first. The MCV must become a Construction Yard before any structures can be built.
- **0:00 Claude Sonnet 5**: Deploy MCV to start base near (95,11), then begin building power plant.
- **0:08 GPT-5.6 Terra**: Construction Yard is deployed. Start the standard economy opening immediately with power, then refinery.
- **0:08 Claude Sonnet 5**: Continue building economy: power plant already started. Once ready, place it, then queue refinery and barracks.
- **0:16 GPT-5.6 Terra**: Construction Yard is deployed and the first power plant is ready. Place it immediately and begin an Ore Refinery to establish income.
- **0:16 Claude Sonnet 5**: Start economy with power plant, then refinery and barracks. No MCV listed (already deployed as fact). Build power first.
- **0:24 GPT-5.6 Terra**: Construction Yard and initial power are established. Start the first refinery immediately to begin income, then expand into infantry and vehicles.
- **0:24 Claude Sonnet 5**: Place power plant, then start ore refinery and continue economic buildup.
- **0:32 GPT-5.6 Terra**: The first refinery is still under construction. I will place it as soon as ready, then immediately establish infantry production and expand ore income.
- **0:32 Claude Sonnet 5**: Power plant done, now build ore refinery for economy, then barracks and war factory.
- **0:40 GPT-5.6 Terra**: First refinery is progressing; immediately place it when ready and establish infantry production. We have ample cash for a fast second refinery after the barracks.
- **0:40 Claude Sonnet 5**: Continue building economy: proc in progress, then barracks and more power.
- **0:48 GPT-5.6 Terra**: The first refinery is still under construction, so I will let it complete before placing it and immediately expanding production. Enemy is likely far northeast; prioritize economy and barracks first.
- **0:48 Claude Sonnet 5**: Continue economy build-up: powr and proc already queued. Once ready, place them and add barracks/war factory.
- **0:56 GPT-5.6 Terra**: First refinery is nearly complete; place it immediately when ready, then establish infantry production and accelerate the ore economy. Enemy is expected far east, so early scouting is next.
- **0:56 Claude Sonnet 5**: Continue economy build: proc and powr already queued. Wait for completion, then place buildings and start barracks/war factory.
- **1:04 GPT-5.6 Terra**: Deploy the ready refinery immediately to start income, then begin a barracks for early scouting and infantry production. Power is currently ample for this expansion.
- **1:04 Claude Sonnet 5**: Proc almost done, powr queued. Continue building economy then barracks/weap.
- **1:12 GPT-5.6 Terra**: Barracks is still under construction; keep the harvester actively mining and immediately expand into a War Factory once the barracks is placed next turn. We have ample power for the opening.
- **1:12 Claude Sonnet 5**: Place proc, continue power plant, then build barracks and expand economy.
- **1:20 GPT-5.6 Terra**: Barracks is ready and we have sufficient funds to begin the War Factory immediately. I will establish infantry scouting pressure while preparing vehicle production.
- **1:20 Claude Sonnet 5**: Base is developing well. Continue building barracks and power, then move to war factory for tanks. Keep economy growing.
- **1:28 GPT-5.6 Terra**: War Factory is nearing completion and the base has adequate power. I will expand ore income immediately, begin infantry production, and prepare a scouting force toward the northeast enemy start.
- **1:28 Claude Sonnet 5**: Place barracks now, continue building queue, keep economy going.
- **1:36 GPT-5.6 Terra**: War Factory is nearing completion and infantry production is fully queued. Scout east-northeast toward the expected Allied start while keeping the harvester mining; place the factory immediately when ready, then expand with another refinery and vehicle production.
- **1:36 Claude Sonnet 5**: Base is developing well; queue more production and start training infantry. Enemy is far west, need scouting and army buildup first.
- **1:44 GPT-5.6 Terra**: War Factory is nearing completion while the barracks queue is full. Continue scouting east with the rifle, keep the rocket near base, and prepare to place the factory then expand ore income immediately.
- **1:44 Claude Sonnet 5**: Base is developing; proc, weap, powr all queued. Keep training infantry and prepare for expansion once buildings finish.
- **1:52 GPT-5.6 Terra**: War Factory is nearly complete and infantry production is already queued. Continue scouting east while consolidating rocket soldiers near the base and keep the harvester mining.
- **1:52 Claude Sonnet 5**: Building already in progress. Keep economy growing and infantry training while waiting for proc/weap/powr to finish.
- **2:00 GPT-5.6 Terra**: War Factory is ready and must be placed immediately to unlock vehicle production. I will add a second refinery for income, begin anti-tank infantry, and continue scouting east while consolidating the nearby force.
- **2:00 Claude Sonnet 5**: Base is progressing well with proc, weap, powr queued. Keep training infantry and prepare for tank production once weap is ready.
- **2:08 GPT-5.6 Terra**: War Factory is about to complete and should be placed immediately; the second refinery remains queued behind it. Our forward scout is advancing toward the likely Allied start while the infantry force moves east to support it.
- **2:08 Claude Sonnet 5**: Place proc, continue building power/weap. Group idle infantry for defense, keep training. Scout west toward enemy base.
- **2:16 GPT-5.6 Terra**: War Factory is ready and must be placed immediately; power will be needed before the next refinery. Infantry scouting force is advancing east while the lead scout continues toward the likely enemy start.
- **2:16 Claude Sonnet 5**: Place power plant, continue building weap/powr, keep training troops, and gather idle infantry into the attack group.
- **2:24 GPT-5.6 Terra**: War Factory is online and the second power plant is ready; place it and save for the urgently needed second refinery. Our forward infantry has located enemy scouts near the eastern approach, so the main force will push toward their likely base while engaging them.
- **2:24 Claude Sonnet 5**: Continue building economy and army. Keep infantry moving west toward enemy while producing more units and buildings.
- **2:32 GPT-5.6 Terra**: Second refinery is under construction and the main infantry/rocket force has advanced well toward the enemy start. Keep pressure moving northeast while economy completes the refinery.
- **2:32 Claude Sonnet 5**: Economy is fine, building weap and powr. Keep massing infantry at staging point and continue producing e1/e3. Once weap done, build fix depot then start tank production.
- **2:40 GPT-5.6 Terra**: Second refinery is still constructing while our infantry spearhead advances through the center-east toward the suspected enemy position. Keep the force moving aggressively and spend incoming refinery income on vehicle infrastructure immediately.
- **2:40 Claude Sonnet 5**: Keep building economy and army. War factory and power plant still building. Consolidate infantry near (76,13) staging point and continue training more infantry while funds allow.
- **2:48 GPT-5.6 Terra**: Second refinery is nearing completion while the scouting infantry column continues toward the likely enemy start. Keep the harvester mining and push the army northeast to reveal and pressure the enemy base.
- **2:48 Claude Sonnet 5**: Keep production going, mass infantry and push west toward enemy base at (12,16). Build fix depot after weap finishes.
- **2:56 GPT-5.6 Terra**: Second refinery is nearly ready and will improve income. Our scouting force is approaching the likely enemy start without contact, so it should continue advancing aggressively while the harvester mines.
- **2:56 Claude Sonnet 5**: Big infantry group gathered around (75-77,13). Continue push west toward enemy base at (12,16), keep production going with war factory and power plant.
- **3:04 GPT-5.6 Terra**: Second refinery is nearly complete and will strengthen income with its free harvester. Our prior scouting force was lost, so the remaining infantry will cautiously continue toward the enemy start while we rebuild vehicle production once funds arrive.
- **3:04 Claude Sonnet 5**: Continue advancing infantry mass west toward enemy base while keeping production running. Add fix depot after war factory finishes for tanks.
- **3:12 GPT-5.6 Terra**: Place the second refinery immediately to increase income, then rebuild a force once funds arrive. Our earlier scouts were eliminated, so avoid sending small groups alone and gather a larger armored force before advancing northeast.
- **3:12 Claude Sonnet 5**: Large infantry force is scattered around (61-64,25-27) and further east. Consolidate and push toward enemy base at (12,16). Keep training e3 for anti-tank support and finish war factory/power for tanks later.
- **3:20 GPT-5.6 Terra**: The second refinery is online and both harvesters are active, but the army was wiped and cash is only beginning to recover. Start rebuilding cheap scouting infantry immediately while income funds the next production cycle.
- **3:20 Claude Sonnet 5**: Weap almost done, keep econ building. Push massed infantry westward toward enemy base at (12,16), gathering stragglers along the way.
- **3:28 GPT-5.6 Terra**: Two refineries are sustaining the economy but the army was wiped out. I will unlock heavy tanks with a Service Depot, continuously rebuild infantry, and scout east toward the likely enemy base.
- **3:28 Claude Sonnet 5**: Place war factory, keep economy and army moving toward enemy base at (12,16), consolidate scattered infantry into main push.
- **3:36 GPT-5.6 Terra**: Service Depot is progressing and both refineries are mining, but the army is nearly gone. Continue scouting east with available infantry while saving income for Heavy Tanks immediately after the depot completes.
- **3:36 Claude Sonnet 5**: Army is scattered heading west toward enemy base at (12,16). Consolidate and push forward, keep building economy and production. Need fix depot for tanks.
- **3:44 GPT-5.6 Terra**: Service Depot is over halfway complete and infantry production is queued. Our nearby rifle group should clear the visible enemy scouts, then continue scouting east while we save for heavy tank production.
- **3:44 Claude Sonnet 5**: Army is scattered mid-map heading toward enemy. Continue pushing toward enemy base while keeping production going. Add more e3 for anti-tank.
- **3:52 GPT-5.6 Terra**: Service Depot is nearly complete; infantry should finish clearing the enemy rifle cluster threatening our ore field. Once the depot is placed, begin heavy tank production as income arrives.
- **3:52 Claude Sonnet 5**: Army is advancing toward enemy base at (12,16). Continue attack move with main force, place ready power plant, keep training units.
- **4:00 GPT-5.6 Terra**: Service Depot is nearly complete and power is critically low. Place the depot, immediately restore power, and begin rebuilding infantry while keeping the lone rifle near the base against the nearby enemy scouts.
- **4:00 Claude Sonnet 5**: Army is near enemy base already, push attack toward (12,16) to finish them off. Keep training more infantry and building fix depot.
- **4:08 GPT-5.6 Terra**: Service Depot is nearly ready while the base is critically low on power; place it immediately when completed and prioritize the queued power plant. Keep harvesting and eliminate the nearby exposed enemy rifles.
- **4:08 Claude Sonnet 5**: Large group of e1 already near enemy base at (18-20,16); push them in to finish off remaining buildings. Keep training e3s and building infrastructure.
- **4:16 GPT-5.6 Terra**: Service Depot is ready and must be placed so the queued power plant can progress. We are critically low on power and exposed to a large nearby enemy rifle group, so the lone rifle will fall back while both harvesters keep mining.
- **4:16 Claude Sonnet 5**: Large infantry force is already at enemy base area (16,16)/(17,16) near their construction yard at 20% damage. Push attack to destroy it, keep reinforcements moving, continue production.
- **4:24 GPT-5.6 Terra**: Emergency low power is stalling all production while a large enemy rifle group is at the base perimeter. Finish and place the power plant, repair critical structures, and keep our infantry defending near the Construction Yard until production recovers.
- **4:24 Claude Sonnet 5**: Enemy fact at 54% hp near destruction, push all forces there. Keep training and rally new units to front.
- **4:32 GPT-5.6 Terra**: Enemy riflemen are pressing directly beside the base while power is nearly complete. I will finish power, keep infantry training, repair key structures, and clear the nearby infantry blob before rebuilding armor.
- **4:32 Claude Sonnet 5**: Enemy fix at 57% hp near their base; push infantry group to destroy it and remaining buildings. Cash is low, let production continue passively.
- **4:40 GPT-5.6 Terra**: Power is critical and a plant is ready to place; our damaged core buildings need repairs while infantry clears the nearby enemy squad. Keep infantry production queued and defend the harvesters/base.
- **4:40 Claude Sonnet 5**: Enemy fix building at 18% hp near their base, push remaining infantry to finish it off and keep producing e3/e1 for reinforcement waves.
- **4:48 GPT-5.6 Terra**: Power plant construction is underway but low power is crippling production. Clear the nearby enemy scout while keeping harvesters mining; once power completes, place it and resume economic/vehicle growth.
- **4:48 Claude Sonnet 5**: Enemy base weak, only power plant visible. Push infantry/rocket group toward enemy base to finish them off while production continues. Queue is overloaded with many 0% items; that's fine, they'll process in order.
- **4:56 GPT-5.6 Terra**: Power is the immediate bottleneck, with a power plant nearly complete. Keep the rocket/rifle production queue active, send both ore trucks mining, and scout east with the infantry while income accumulates for repairs and armor.
- **4:56 Claude Sonnet 5**: Cash is zero and army scattered; consolidate remaining units and push toward enemy base at (12,16). Keep production queue running since cash allows minimal spend as income comes in.
- **5:04 GPT-5.6 Terra**: Power is critically low and the existing power plant is ready; place it and immediately start another to restore production speed. Our small infantry group should eliminate the exposed enemy scout and continue probing east toward the enemy base.
- **5:04 Claude Sonnet 5**: Cash is tight, production queue is huge already. Focus on consolidating scattered infantry into a group and pushing toward enemy base at (12,16), keeping harvesters mining.
- **5:12 GPT-5.6 Terra**: Our base has ample power once the ready plant is placed, but key structures are badly damaged and our tiny force needs to scout aggressively toward the northeast enemy start. Keep infantry production rolling while ore income accumulates for repairs and armor.
- **5:12 Claude Sonnet 5**: Place the ready service depot, keep economy/production flowing, and consolidate scattered infantry into a single push toward the enemy base near (12,16). Too many queued e3 units already; let them finish while I move troops.
- **5:20 GPT-5.6 Terra**: Our economy is stable with two refineries and ample power, but the base infrastructure is badly damaged and army is too small. Start a third refinery for income, continue repairs, and keep the scouting infantry advancing toward the likely enemy position.
- **5:20 Claude Sonnet 5**: Place the ready power plant, keep economy running, and mass infantry group before pushing west toward enemy base at (12,16). Start building tanks for the assault.
- **5:28 GPT-5.6 Terra**: Third refinery is under construction and repairs are underway on the damaged core structures. Keep the scouting force advancing toward the likely enemy start while harvesters continue feeding the economy.
- **5:28 Claude Sonnet 5**: Economy stable, keep producing tanks and infantry. Group scattered infantry at (61,27) and push west toward enemy base once tanks ready. Keep queues full.
- **5:36 GPT-5.6 Terra**: Our forward infantry/rocket scout has reached the central-east map without contact, so it should continue directly toward the likely enemy start while the third refinery completes. Economy is temporarily constrained, so preserve the existing production queues and get both trucks mining.
- **5:36 Claude Sonnet 5**: Idle infantry sitting around (61,27); regroup them and continue toward enemy base while waiting for tanks. Keep production flowing.
- **5:44 GPT-5.6 Terra**: The third refinery is close to completion and the base has ample power, but our damaged construction facilities need repairs. Our surviving infantry/rocket force should press east toward the likely enemy start while new rockets are queued behind the current rifleman.
- **5:44 Claude Sonnet 5**: Place ready power plant, keep producing, regroup army and push toward enemy base once tanks arrive. Continue attacking nearby enemy infantry.
- **5:52 GPT-5.6 Terra**: Third refinery is nearly ready and will strengthen income; repairs are restoring critical infrastructure. Our small infantry force should keep advancing toward the likely enemy start while rockets provide anti-vehicle coverage.
- **5:52 Claude Sonnet 5**: Keep production flowing, group scattered infantry and push toward enemy base once tanks finish.
- **6:00 GPT-5.6 Terra**: Place the completed third refinery immediately to expand income. Our small infantry force should continue scouting aggressively toward the likely enemy start while queued infantry reinforces it.
- **6:00 Claude Sonnet 5**: Keep production going, group scattered infantry and push toward enemy base while tanks finish building.
- **6:08 GPT-5.6 Terra**: Our base infrastructure is intact but key buildings are badly damaged, while our field army is nearly gone. Repair critical production structures, start a heavy tank queue, and have the forward infantry eliminate the visible enemy scouts while continuing eastward.
- **6:08 Claude Sonnet 5**: Continue building tanks and infantry queue, keep economy running. Regroup scattered units toward central point while waiting for tank force to build up before assaulting enemy base at (12,16).
- **6:16 GPT-5.6 Terra**: Production queues are fully committed while repairs restore critical infrastructure. Clear the nearby enemy scout and keep the forward rocket team probing east toward the likely enemy base while tanks accumulate.
- **6:16 Claude Sonnet 5**: Production queue is full and cash is $0, so just let it build. Keep scattered infantry consolidated and idle, wait for tank stack before pushing west toward enemy base at (12,16).
- **6:24 GPT-5.6 Terra**: Production is fully queued but the current field force is only scattered infantry, so I will consolidate them on an aggressive northeast scouting route while prioritizing repairs to vulnerable core buildings.
- **6:24 Claude Sonnet 5**: Production queue is full with tanks and infantry. Only a few units exist so far; keep consolidating stray e3s and wait for tank buildup before attacking.
- **6:32 GPT-5.6 Terra**: Five heavy tanks are queued and should form the next attack force; existing infantry will advance cautiously toward the presumed northeast enemy base while eliminating the visible rocket soldier. Repairs remain essential on the damaged core buildings.
- **6:32 Claude Sonnet 5**: Tanks still queued, keep economy running and consolidate infantry. Wait for tank group to build up before attacking.
- **6:40 GPT-5.6 Terra**: Economy is fully committed with four Heavy Tanks queued, while the surviving infantry force is already advancing east. Keep all combat units pressing toward the presumed enemy base and continue repairing critical infrastructure as funds arrive.
- **6:40 Claude Sonnet 5**: Continue building army, keep queues busy. Wait for tanks to accumulate before attacking. Consolidate scattered infantry.
- **6:48 GPT-5.6 Terra**: Our three-refinery economy is healthy and four Heavy Tanks are queued. Continue the eastern attack-move with the armored lead, repair critical infrastructure, and add radar for scouting support.
- **6:48 Claude Sonnet 5**: Economy is fine, keep production going. Group scattered rocket soldiers toward a rally point and keep building tanks. Wait for more tanks before attacking.
- **6:56 GPT-5.6 Terra**: Our infantry spearhead is nearing the enemy approach while heavy tanks are queued. Keep pressure northeast, eliminate the visible rocket soldier, and continue vital building repairs while the Radar Dome completes.
- **6:56 Claude Sonnet 5**: Economy stable, big production queue running. Keep building tanks and consolidate scattered units near home until we have a solid force of 8+ before pushing toward enemy base at (12,16).
- **7:04 GPT-5.6 Terra**: Our forward force is nearing the enemy’s likely northeast start while heavy tank production is committed. Keep pressure toward (95,11), preserve the 1% rifle, and maintain production rallies forward.
- **7:04 Claude Sonnet 5**: Still building up tank queue; only 1 tank so far, wait for more before attacking. Keep production flowing, no idle army to move yet besides small scouting units already positioned.
- **7:12 GPT-5.6 Terra**: Our forward force is nearing the likely enemy start while heavy tank reinforcements are already queued. Keep pressing northeast, consolidate stragglers behind the spearhead, and repair critical damaged infrastructure when funds permit.
- **7:12 Claude Sonnet 5**: Continue building up tank force; queue is deep already. Group idle units and hold near base until we have 8+ tanks.
- **7:20 GPT-5.6 Terra**: Radar Dome is nearly complete while the main force is converging on the likely enemy start. Keep armor and infantry advancing aggressively, eliminate the visible rocket soldier, and maintain rocket production for anti-vehicle support.
- **7:20 Claude Sonnet 5**: Keep massing tanks; production huge queue already. Continue holding units until 8+ tanks ready, gather idle units together.
- **7:28 GPT-5.6 Terra**: Our forward force is deep on the enemy approach but currently has no visible targets, so it should converge aggressively on the likely enemy start. Production queues are full; preserve the damaged core structures while harvesters keep income flowing.
- **7:28 Claude Sonnet 5**: Small enemy infantry group nearby scouting; keep defending base with current units, continue tank production, don't overextend yet.
- **7:36 GPT-5.6 Terra**: Our forward forces have reached the enemy start and visible power infrastructure. Place the Radar Dome and concentrate the assault directly through the enemy base while production completes as funds arrive.
- **7:36 Claude Sonnet 5**: Enemy scouts near our base with a tank, our small force is outnumbered locally. Retreat damaged units to base, keep production running, defend with tesla/defense.
- **7:44 GPT-5.6 Terra**: Our forward force is inside the enemy base area and should finish the damaged Heavy Tank, then continue collapsing visible power. Keep tank and rocket production queued while repairing the critical Construction Yard and Barracks.
- **7:44 Claude Sonnet 5**: Enemy force approaching my base near (85-88,10-14). My damaged tank should retreat, e3 stay defensive. Keep production going, tesla coil almost done for defense.
- **7:52 GPT-5.6 Terra**: Enemy base is exposed at 91,8-15 with only damaged power plants visible. Keep the forward force destroying structures while all reinforcements converge east; repairs remain urgent on core production buildings.
- **7:52 Claude Sonnet 5**: Enemy small force lurking near our base. My army is thin (just 2 e3s and a husk). Keep building tanks/defense, hold rocket soldiers near base for defense, avoid engaging until tanks arrive.
- **8:00 GPT-5.6 Terra**: Our forward force is inside the exposed enemy base, so focus fire their refinery and power while reinforcements advance from the west. Keep repairs active on the severely damaged Construction Yard, Barracks, and Service Depot, and queue a second War Factory for sustained armor production.
- **8:00 Claude Sonnet 5**: Cash is at $0 so production is stalled; my economy needs to catch up. Enemy has a small raiding force near my base with a tank and infantry. I'll pull back my lone idle units to defend near base and let harvesters keep mining while production continues once funds trickle in.
- **8:08 GPT-5.6 Terra**: Enemy base is exposed at the northeast and the damaged refinery is the immediate target. Keep the forward force destroying structures while all reinforcements converge aggressively; production queues are already saturated and repairs are underway.
- **8:08 Claude Sonnet 5**: Enemy raiders are right at my doorstep with tanks and infantry, but I only have 1 rocket soldier and a wrecked tank. Cash is $0 so production is stalled. Need to hold defensively and let income trickle in from harvesters to eventually get the 3tnk queue moving.
- **8:16 GPT-5.6 Terra**: Our forward force is inside the enemy base area and only an enemy power plant remains visible; concentrate all available combat units there to finish structures while the queued tanks and rockets reinforce. Economy has three refineries and harvesters, so keep production queues progressing rather than spending on defenses.
- **8:16 Claude Sonnet 5**: Low power is slowing production badly; need another power plant urgently. Enemy raiders are near my base but I have almost no army yet. Defend with what I have and rush power/tank production.
- **8:24 GPT-5.6 Terra**: Our forward force is inside the exposed enemy base, with their Construction Yard and Barracks visible and weakly defended. Focus all available combat units on the Construction Yard first while the continuous tank and rocket production reinforces the attack.
- **8:24 Claude Sonnet 5**: Enemy raiders are near my base, very dangerous with almost no army. Power is critically low and slowing production. Need to place power plant when ready and keep defending with what I have.
- **8:32 GPT-5.6 Terra**: Our forward tanks and infantry are inside the exposed enemy base, with their Construction Yard critically damaged. Focus all nearby forces on eliminating it immediately, then clear the barracks while reinforcements continue east.
- **8:32 Claude Sonnet 5**: Enemy force is right next to my base, my construction yard is badly damaged. Need to place power plant, defend with what I have, and keep production going. Low power is slowing everything.
- **8:40 GPT-5.6 Terra**: Our forward force is inside the exposed enemy base, with only four enemy structures currently visible. Focus fire their War Factory and Refinery while rockets and tanks remove the defending Heavy Tank; keep all production rallied directly into the enemy base.
- **8:40 Claude Sonnet 5**: No power plant exists causing production slowdown. Need to build powr urgently. Enemy raiders near base - defend with tank.
- **8:48 GPT-5.6 Terra**: Our forward force is inside the exposed enemy base and their production structures are badly damaged. Focus the tanks on the enemy heavy tank and War Factory while infantry/rockets tear down the refinery and barracks; reinforcements continue east.
- **8:48 Claude Sonnet 5**: Enemy force is right next to our base with many units; we only have 1 tank. Need power and defense urgently. Try building power plant again and retreat harvester away from danger, keep tank defending.
- **8:56 GPT-5.6 Terra**: Enemy base is exposed at the northeast with only a refinery, damaged barracks, and depot visible. Finish the barracks and depot while heavy tanks pressure the refinery; pull the critically damaged tank back for repairs and send the home tank to reinforce.
- **8:56 Claude Sonnet 5**: Enemy swarm is right next to our base with no defenses. We lack power plant options currently; keep training infantry that's already queued and try building power again. Retreat harvesters to safety and hold position with the husk tank.
- **9:04 GPT-5.6 Terra**: Our strike force is inside the exposed enemy base and should immediately finish its refinery and crippled depot. Keep heavy tank production rolling while pulling the critically damaged tank back; repairs to key damaged infrastructure are also needed.
- **9:04 Claude Sonnet 5**: Enemy horde is right next to my base with no defense. My buildings are minimal (proc, fix) and low power. Need to try building power plant again and get harvesters away from danger to keep economy alive.

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Source: https://evaljetty.com/openra/games/rr-sonnet5-gpt56terra-g4.html · Evals by Jetty · Run your own evals: https://jetty.io/?utm_source=evaljetty&utm_medium=llms