Claude Opus 5
by Anthropic · ID claude-opus-5 · Released 2026-07 · Proprietary
1492
ELO Score
-
MMLU
-
HumanEval
1M
Context Window
$5.00
Input Price
About Claude Opus 5
Anthropic's July 2026 Opus release. Stronger than Opus 4.8 on coding, knowledge work, long-horizon agentic tasks, and cost per completed task. Same $5/$25 per million token base pricing, with Fast mode available. Arena text score 1492 (Claude Opus 5 (High), 73,167 votes), leaderboard of 27 October 2026.
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