Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...
Anthropic: Claude Opus 4.6 — Anthropic. Context window 1,000,000 tokens. API pricing (per 1M tokens): Input $5, Output $25. License: Proprietary. LMArena 1,503. GPQA Diamond 88.4%.
| Provider | Anthropic |
|---|---|
| API model ID | anthropic/claude-opus-4.6 |
| Tier | Frontier |
| Context window | 1,000,000 tokens |
| Max output | 128,000 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $5 |
| API pricing (per 1M tokens) · Output | $25 |
| LMArena | 1,503 (claude-opus-4-6-high) |
| GPQA Diamond | 88.4% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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