Claude Opus 4.8

Anthropic's deepest reasoner for the hardest problems.

Intelligence

AA Intelligence Index56

independent benchmark score from Artificial Analysis, not Timace's own judgment

Best for

  • Hard multi-step reasoning and research

Not ideal for

  • High-volume, latency-sensitive workloads

Specifications

Developer
Anthropic

confidence 100%

www.anthropic.com

Verified Jul 21, 2026 · curated

Context window (tokens)
200K tokens

confidence 85%

docs.anthropic.com

Verified Jul 21, 2026 · curated

Input $/MTok
$5 / MTok

confidence 75%

www.anthropic.com

Verified Jul 21, 2026 · curated

Output $/MTok
$25 / MTok

confidence 75%

www.anthropic.com

Verified Jul 21, 2026 · curated

Modalities
text, image, code

confidence 90%

www.anthropic.com

Verified Jul 21, 2026 · curated

API available
Yes

confidence 100%

www.anthropic.com

Verified Jul 21, 2026 · curated

Open source
No

confidence 100%

www.anthropic.com

Verified Jul 21, 2026 · curated

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