Claude 4.7 Opus vs o1-preview

Head-to-head technical comparison of intelligence, capabilities, and API pricing.

Claude 4.7 Opus

Anthropic

AI Mastery Index93.8

LMSYS Arena1345

Technical (MMLU-Pro)93.8%

Cost per 1M Tokens$15

o1-preview

OpenAI

AI Mastery Index88.5

LMSYS Arena1335

Technical (MMLU-Pro)90.8%

Cost per 1M Tokens$15

Architect's Verdict

When comparing Claude 4.7 Opus and o1-preview, Claude 4.7 Opus edges out in overall capabilities according to the AI Mastery Index. However, for cost-sensitive workloads, o1-preview offers a more economical API at $15 per 1M tokens. Your choice should depend heavily on whether you prioritize raw reasoning (MMLU) or scalable deployment economics.