We ran 200+ prompts across coding, reasoning, long-context, and instruction-following tasks. Here's what the data actually shows about the two leading frontier models.
Muunsparks
2025-03-03
We ran 200+ structured prompts across six evaluation categories using identical system prompts and temperature=0 for deterministic comparison. All tests conducted in March 2025.
Both models performed exceptionally well. Claude showed a measurable advantage on complex refactoring tasks.
Score: Claude 73/100 · GPT-4o 69/100
With a 200K context window, Claude handles longer documents natively and shows meaningfully better needle-in-a-haystack retrieval.
Score: Claude 84/100 · GPT-4o 74/100
GPT-4o's function calling interface is more mature and consistent for multi-step tool use.
Score: GPT-4o 78/100 · Claude 72/100
Neither model is universally better. Choose Claude for long-document work and creative tasks. Choose GPT-4o for agentic applications and mathematical reasoning.
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