Claude 3 Opus (20240229)

This model is not part of the weekly automatic sync. The figures below were confirmed on 2026-08-13.

Claude 3rd generation top flagship

Claude 3 Opus (20240229) — Anthropic. Context window 200,000 tokens. API pricing (per 1M tokens): Input $15, Output $75. License: Proprietary. LMArena 1,262. GPQA Diamond 47.2%.

Benchmarks · API pricing (per 1M tokens)

ProviderAnthropic
TierFrontier
Context window200,000 tokens
Max output4,096 tokens
LicenseProprietary
API pricing (per 1M tokens) · Input$15
API pricing (per 1M tokens) · Output$75
LMArena1,262 (claude-3-opus-20240229)
GPQA Diamond47.2%

LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)

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