Anthropic · anthropic/claude-opus-5.5

claude-opus-5.5

Researcher 1000k context Hermes Usable

Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...

Input / M

$4.000

Output / M

$20.000

Value score

8.53

30d price Δ

Reasoning (AA)

57.6

Coding (AA)

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Tool / agentic

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Knowledge cutoff

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Price history

Not enough history yet — newer than the backfill window.

Capability snapshot

Last-known Artificial Analysis indexes via OpenRouter.

Index	Score
context	99.6
general_intelligence	57.6
reasoning	57.6