Claude 3.5 Sonnet vs o1-preview

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

Claude 3.5 Sonnet

Anthropic

AI Mastery Index88

LMSYS Arena1282

Technical (MMLU-Pro)88.3%

Cost per 1M Tokens$3

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 3.5 Sonnet and o1-preview, o1-preview edges out in overall capabilities according to the AI Mastery Index. However, for cost-sensitive workloads, Claude 3.5 Sonnet offers a more economical API at $3 per 1M tokens. Your choice should depend heavily on whether you prioritize raw reasoning (MMLU) or scalable deployment economics.