Anthropic
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Listed February 2026
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Multimodal Foundation
Claude Opus 4.6
Arena #3 • score 1504 ±3
Proprietary model from Anthropic, listed February 2026. Arena text score 1504 (#3 of 414 entries). $5.00 input / $25.00 output per 1M tokens. 1M tokens context.
Parameters
Not disclosed
Context Window
1M tokens
Input / 1M tokens
$5.00
Output / 1M tokens
$25.00
Benchmark Results
- Arena Text Elo: 1504 (#3 of 414 on arena.ai · ±3 · 79,415 votes · variant: claude-opus-4-6-high)
- SWE-bench Verified: 75.6% (mini-SWE-agent (bash only) · run 'Claude 4.6 Opus' · 2026-02-17)
- AA Intelligence Index: 31.9 (Artificial Analysis v4.3 · best setting: Claude Opus 4.6 (Max) · checked 2026-10-11)