Prompt: Rebar counting
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How models perform on this prompt
Arcee.ai Spotlight
Model answer: 20
ChatGPT-4o (High Reasoning)
Model answer: 67
ChatGPT-4o (Medium Reasoning)
Model answer: 61
Claude 3.5 Haiku
Model answer: 60
Claude 3.7 Sonnet
Model answer: From the image, I can see approximately 60-70 rebar ends visible in the foreground bundle. The rebars are stacked together with their cut ends facing the camera, showing the characteristic rusty/orange coloration on the steel. There are additional rebars in the background, but I'm focusing on the clearly visible ends in the main bundle.
Claude 4 Opus
Model answer: I can see the cut ends of the rebar bundle in the center of the image. Counting the visible ends, I can identify approximately 45-50 individual rebar ends in the bundle. 50
Claude 4 Sonnet
Model answer: I can see a bundle of rebar (reinforcing steel bars) in the image, but I cannot provide an exact count of the individual rebar ends visible as they are densely packed together and some may be obscured by others in the bundle. The rebar appears to be stored at a construction site or materials yard.
Claude 4.1 Opus
Model answer: I can see approximately 50-55 rebar ends visible in the bundled stack shown in the image. The exact count is difficult to determine with complete precision due to some overlapping and the angle of the photograph, but there are roughly 50-55 individual rebar ends visible in the cross-section of this bundle.
Cohere Aya Vision 32B
Model answer: 100
Cohere Aya Vision 8B
Model answer: There are 12 rebar ends visible in the image.
GPT-4.1
Model answer: 54
GPT-4.1 Mini
Model answer: 48
GPT-4.1 Nano
Model answer: 7
GPT-5
Model answer: 52
GPT-5 (high reasoning)
Model answer: 61
GPT-5 Mini
Model answer: 45
GPT-5 Nano
Model answer: 36
GPT-5 with High Reasoning
Model answer: 61
Gemini 1.5 Flash
Model answer: 50
Gemini 1.5 Pro
Model answer: 52
Gemini 2.0 Flash
Model answer: 45
Gemini 2.0 Flash Lite
Model answer: 68
Gemini 2.5 Flash Lite
Model answer: 39
Gemini 2.5 Pro
Model answer: 40
Gemma 3 27b
Model answer: 28
Gemma 3 4B
Model answer: 23
Llama 4 Maverick 17B
Model answer: 54
Llama 4 Scout 17B
Model answer: 30
Mistral Medium 3
Model answer: 27.
Mistral Small 3.1 24B
Model answer: In this image, there are 18 visible ends of rebar lying in a separate row in background. In the huge pile in the foreground, it's difficult to count them as most of the ends are covered or touching each other.
OpenAI O1
Model answer: 58
OpenAI O3 (High Reasoning)
Model answer: 53
OpenAI O3 (Medium Reasoning)
Model answer: 53
OpenAI O4 Mini (High Reasoning)
Model answer: 48
OpenAI O4 Mini (Medium Reasoning)
Model answer: 54
OpenAI o3-pro
Model answer: 61
Phi 4 Multimodal
Model answer: 30
Qwen 2.5 VL 7B
Model answer: 24