---
title: "claude-code \u00b7 Sonnet 5 | Pelican benchmark"
url: https://evaljetty.com/pelicans/agents/v2-claude-sonnet5.html
description: "claude-code \u00b7 Sonnet 5 (anthropic/claude-sonnet-5) drawing a pelican riding a bicycle: every hill-climb round, self-scores and external judge scores."
updated: 2026-09-28
publisher: Jetty (https://jetty.io)
---

v2 · Sep 2026 · jettygrowthteam · auto-evolved runbook (weakest-axis targeting)

# claude-code · Sonnet 5

claude-code driving anthropic/claude-sonnet-5 through OpenRouter, 5 hill-climb rounds from the v1 runbook.

agent **claude-code** · model **anthropic/claude-sonnet-5**

Judge, best round

25.3/40

round v4

Self-score, best round

36/40

inflation +10.7

Rounds

5

~$4.57 est. spend

![claude-code · Sonnet 5 best round](https://evaljetty.com/pelicans/img/v2-claude-sonnet5/v4.svg)

best round v4 · [240351f2 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/240351f2)

### Self-score vs judge, by axis

Best round v4, 0–10 per axis

agent self-scoreexternal judge

**Judge:** The pelican reads well, with a white body, a long neck, an orange throat pouch and orange legs reaching toward the pedals, though the gray arm-like wing looks odd. The bicycle frame is structurally confused: the front wheel has no fork connecting it to the frame, the handlebar area is a tangle, and the body floats above an unclear seat. The clean gradient sky and speed lines are nice, but these joins in the frame and wing look glitchy.

### Score by round

Out of 40. Each round starts from the previous round's best SVG.

self-scorejudge

## Every round

Click a drawing to open it in the head-to-head viewer. The outlined card is the agent's best round.

[![claude-code · Sonnet 5 round v1](https://evaljetty.com/pelicans/img/v2-claude-sonnet5/v1.svg)](https://evaljetty.com/pelicans/head-to-head.html#v2-claude-sonnet5/v1)

**v1**judge **26.5** · self 28
[ea416761 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/ea416761)[runbook](https://evaljetty.com/pelicans/runbooks.html#v2-claude-sonnet5/v1)

[![claude-code · Sonnet 5 round v2](https://evaljetty.com/pelicans/img/v2-claude-sonnet5/v2.svg)](https://evaljetty.com/pelicans/head-to-head.html#v2-claude-sonnet5/v2)

**v2**judge **27.3** · self 34
[b77ea720 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/b77ea720)[runbook](https://evaljetty.com/pelicans/runbooks.html#v2-claude-sonnet5/v2)

[![claude-code · Sonnet 5 round v3](https://evaljetty.com/pelicans/img/v2-claude-sonnet5/v3.svg)](https://evaljetty.com/pelicans/head-to-head.html#v2-claude-sonnet5/v3)

**v3**judge **27** · self 34
[6e98127a ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/6e98127a)[runbook](https://evaljetty.com/pelicans/runbooks.html#v2-claude-sonnet5/v3)

[![claude-code · Sonnet 5 round v4](https://evaljetty.com/pelicans/img/v2-claude-sonnet5/v4.svg)](https://evaljetty.com/pelicans/head-to-head.html#v2-claude-sonnet5/v4)

**v4** · bestjudge **25.3** · self 36
[240351f2 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/240351f2)[runbook](https://evaljetty.com/pelicans/runbooks.html#v2-claude-sonnet5/v4)

[![claude-code · Sonnet 5 round v5](https://evaljetty.com/pelicans/img/v2-claude-sonnet5/v5.svg)](https://evaljetty.com/pelicans/head-to-head.html#v2-claude-sonnet5/v5)

**v5**judge **26.2** · self 36
[1925c665 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/1925c665)[runbook](https://evaljetty.com/pelicans/runbooks.html#v2-claude-sonnet5/v5)

### Scores per round

| Round | Pelican | Bicycle | Composition | Polish | Self total | Judge total | Judge spread | Minutes | Trajectory |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| v1 | 7self 7 | 6.2self 8 | 6.5self 7 | 6.8self 6 | 28 | 26.5 | 1 | 5.7 | [ea416761 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/ea416761) |
| v2 | 7.2self 8 | 6self 8 | 7self 9 | 7.2self 9 | 34 | 27.3 | 1 | 5.9 | [b77ea720 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/b77ea720) |
| v3 | 7.3self 9 | 6self 8 | 6.8self 9 | 6.8self 8 | 34 | 27 | 1.5 | 5.6 | [6e98127a ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/6e98127a) |
| v4 | 7.5self 9 | 5self 9 | 6.5self 8 | 6.3self 10 | 36 | 25.3 | 1 | 6.4 | [240351f2 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/240351f2) |
| v5 | 7.3self 9 | 5.3self 9 | 6.8self 9 | 6.7self 9 | 36 | 26.2 | 0.5 | 11.8 | [1925c665 ↗](https://jetty.io/jettygrowthteam/pelican-bicycle-svg/1925c665) |

---
Source: https://evaljetty.com/pelicans/agents/v2-claude-sonnet5.html · Evals by Jetty · Run your own evals: https://jetty.io/?utm_source=evaljetty&utm_medium=llms