Tihu · Pelican Bench

Claude Sonnet 5.5  medium · 2026-11-08 · Sample 1/3

· Sample 1/3

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AI reference score

5.28 ± 0.64

The ± value shows how much the counted judges’ scores vary across both rounds of scoring.

Claude Opus 5.5 · medium · Pass 1 6.10 Not counted
Claude Opus 5.5 · medium · Pass 2 5.80 Not counted
GPT-6 Astra · medium · Pass 1 5.80
GPT-6 Astra · medium · Pass 2 5.20
Grok 4.7 · medium · Pass 1 5.70
Grok 4.7 · medium · Pass 2 4.40

Scoring criteria

Pelican likeness
5.50
Bicycle correctness
5.25
Riding pose
4.50
Composition
6.00
Obvious errors (higher is better)
5.25
Drawing checks passed Normal

Judges

Claude Opus 5.5 · medium · Pass 1

6.10 Not counted

What the judge sees: Original (Chinese) 这是一幅扁平风格的插画：一只白色的鸟坐在一辆红色车架的自行车上，鸟身是椭圆形，带灰色描边和浅灰色翅膀，脖子细长，头是圆形，眼睛是黑色的，橙色的长喙指向右侧。鸟的一条橙黄色细腿向下伸到踏板上，一侧白色翅膀向前伸到车把处；自行车有两个深灰色圆形车轮，中间有一个小链轮和曲柄。背景上方是浅蓝色，底部是一条绿色地面带，自行车的车轮立在地面边缘上。

Original (Chinese) 结构正确但过于简陋，喙下几乎没有喉囊，鹈鹕特征偏弱

  • Long beak and throat pouch: No
  • Two wheels: Yes
  • Frame connects the wheels: Yes
  • Bird sits on the seat: Yes
  • Feet on the pedals: Yes
Pelican likeness
5.00
Bicycle correctness
6.00
Riding pose
7.00
Composition
6.00
Obvious errors (higher is better)
7.00

Claude Opus 5.5 · medium · Pass 2

5.80 Not counted

What the judge sees: Original (Chinese) 这是一幅扁平风格的插画：一只白色的鸟坐在一辆红色车架的自行车上，鸟身是椭圆形，带灰色描边和浅灰色翅膀，脖子细长，头是圆形，眼睛是黑色的，橙色的长喙指向右侧。鸟的一条橙黄色细腿向下伸到踏板上，一侧白色翅膀向前伸到车把处；自行车有两个深灰色圆形车轮，中间有一个小链轮和曲柄。背景上方是浅蓝色，底部是一条绿色地面带，自行车的车轮立在地面边缘上。

Original (Chinese) 结构基本正确但过于简陋，喉囊不明显，只画了一条腿。

  • Long beak and throat pouch: No
  • Two wheels: Yes
  • Frame connects the wheels: Yes
  • Bird sits on the seat: Yes
  • Feet on the pedals: Yes
Pelican likeness
5.00
Bicycle correctness
6.00
Riding pose
7.00
Composition
5.00
Obvious errors (higher is better)
6.00

GPT-6 Astra · medium · Pass 1

5.80

What the judge sees: Original (Chinese) 图片中，一只白色、灰色轮廓的鸟位于红色自行车上方，头朝右，长嘴呈橙黄色，眼睛为黑色，灰色尾巴伸向左侧。自行车有两个黑色圆形车轮、红色三角形车架和深灰色踏板结构，鸟的橙黄色腿从身体向下延伸至踏板附近。背景为浅蓝色，底部是一条绿色地面。

Original (Chinese) 轮廓清楚，但车座与链条缺失，仅见单腿踩踏。

  • Long beak and throat pouch: Yes
  • Two wheels: Yes
  • Frame connects the wheels: Yes
  • Bird sits on the seat: No
  • Feet on the pedals: Yes
Pelican likeness
7.00
Bicycle correctness
5.00
Riding pose
5.00
Composition
6.00
Obvious errors (higher is better)
6.00

GPT-6 Astra · medium · Pass 2

5.20

What the judge sees: Original (Chinese) 图片中，一只白色、灰色轮廓的鸟位于红色自行车上方，头朝右，长嘴呈橙黄色，眼睛为黑色，灰色尾巴伸向左侧。自行车有两个黑色圆形车轮、红色三角形车架和深灰色踏板结构，鸟的橙黄色腿从身体向下延伸至踏板附近。背景为浅蓝色，底部是一条绿色地面。

Original (Chinese) 主体可辨，但车座、链条和明确踏板缺失，骑姿支撑不足。

  • Long beak and throat pouch: Yes
  • Two wheels: Yes
  • Frame connects the wheels: Yes
  • Bird sits on the seat: No
  • Feet on the pedals: No
Pelican likeness
6.00
Bicycle correctness
5.00
Riding pose
4.00
Composition
6.00
Obvious errors (higher is better)
5.00

Grok 4.7 · medium · Pass 1

5.70

What the judge sees: Original (Chinese) 画面上方是浅蓝色背景，底部是一条绿色横带。一只白色鸟面朝右，长着橙色长喙、黑色眼睛、灰色翅膀和尾部，坐在一辆红色自行车上。自行车位于画面中部，有两个黑色轮圈，鸟的黄色腿伸向黑色脚踏。

Original (Chinese) 长喙可见但无喉囊，身在车架上，只有一只脚踩踏板。

  • Long beak and throat pouch: No
  • Two wheels: Yes
  • Frame connects the wheels: Yes
  • Bird sits on the seat: No
  • Feet on the pedals: Yes
Pelican likeness
5.00
Bicycle correctness
6.00
Riding pose
5.00
Composition
7.00
Obvious errors (higher is better)
6.00

Grok 4.7 · medium · Pass 2

4.40

What the judge sees: Original (Chinese) 画面上方是浅蓝色背景，底部是一条绿色横带。一只白色鸟面朝右，长着橙色长喙、黑色眼睛、灰色翅膀和尾部，坐在一辆红色自行车上。自行车位于画面中部，有两个黑色轮圈，鸟的黄色腿伸向黑色脚踏。

Original (Chinese) 尖喙无喉囊，身体压在车梁上，缺车座、链条和另一条腿。

  • Long beak and throat pouch: No
  • Two wheels: Yes
  • Frame connects the wheels: Yes
  • Bird sits on the seat: No
  • Feet on the pedals: Yes
Pelican likeness
4.00
Bicycle correctness
5.00
Riding pose
4.00
Composition
5.00
Obvious errors (higher is better)
4.00

Drawing details

Model version Claude Sonnet 5.5 · medium
Tier medium
Duration 10.6 s
Generated at 2026-11-08 00:20
Data date 2026-11-08

Validation: Drawing checks passed

Generate an SVG of a pelican riding a bicycle

View SVG source 
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</svg>
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