Claude Opus 5

Anthropic's top-tier Claude model.

Best for: Hard, long-horizon coding and agent tasks where cost matters less.
Open source: no
Pricing: API: input $5 / MTok, output $25 / MTok; prompt caching read $0.50 / write $6.25 per MTok; 50% off with batch processing. (source: official page, checked 2026-10-21)
Other AI coding models: Claude Sonnet 5
Last checked: 2026-10-21 (pricing 2026-10-21 · licence not checked)

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Pricing is copied from each tool's official page on the date shown and left out where we couldn't read it; prices change. Licences were checked on GitHub; 'unconfirmed' means not verified. No affiliate links.