Claude vs GPT-4o: A Technical Benchmark Breakdown

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.

M

Muunsparks

2025-03-03

1 min read

Methodology

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.

Category Results

Code Generation — Winner: Claude (slight edge)

Both models performed exceptionally well. Claude showed a measurable advantage on complex refactoring tasks.

Score: Claude 73/100 · GPT-4o 69/100

Long-Context Retrieval — Winner: Claude (significant)

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

Tool Use / Agents — Winner: GPT-4o

GPT-4o's function calling interface is more mature and consistent for multi-step tool use.

Score: GPT-4o 78/100 · Claude 72/100

Overall Verdict

Neither model is universally better. Choose Claude for long-document work and creative tasks. Choose GPT-4o for agentic applications and mathematical reasoning.