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OpenAI o4-mini vs Claude 3.7 Thinking Sonnet

Compare OpenAI o4-mini by OpenAI against Claude 3.7 Thinking Sonnet by Anthropic, tested across 34 shared challenges. Updated March 2026.

Which is better, OpenAI o4-mini or Claude 3.7 Thinking Sonnet?

OpenAI o4-mini and Claude 3.7 Thinking Sonnet are both competitive models. OpenAI o4-mini costs $1.1/M input tokens vs $6/M for Claude 3.7 Thinking Sonnet. Compare their real outputs side by side below.

Key Differences Between OpenAI o4-mini and Claude 3.7 Thinking Sonnet

OpenAI o4-mini is made by openai while Claude 3.7 Thinking Sonnet is from anthropic. On pricing, OpenAI o4-mini costs $1.1/M input tokens vs $6/M for Claude 3.7 Thinking Sonnet.

Our Verdict
OpenAI o4-mini
OpenAI o4-mini
Claude 3.7 Thinking Sonnet
Claude 3.7 Thinking Sonnet

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

OpenAI o4-mini is 6.8x cheaper per token — worth considering if cost matters.

Too close to call
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