Model overview
One dated price change sits in this catalogue and it belongs to claude-sonnet-5: $2 per million input tokens and $10 per million output through 31 August 2026, then $3 and $15 from 1 September 2026, with cached input currently $0.20. Budget on the later pair. Even at $3 / $15 it stays under Opus 5 at $5 / $25, and it stays above Haiku 4.5 at $1 / $5 — twice the cost today, three times after the change. Fable 5 and Mythos 5 sit far above at $10 / $50. The context window is 1M tokens and the feature list, reasoning plus tool use plus prompt caching, is identical across the provider, so the introductory window is the only variable worth planning around.
Billing conditions: Introductory $2 input / $10 output pricing applies through 31 August 2026; standard $3 / $15 pricing starts 1 September 2026.
- Context window
- 1,000,000 tokens
- Knowledge cutoff
- —
- Price last verified
- First observed
Descriptions, capabilities, and tariffs come from the linked source. First-party prices take priority; OpenRouter fallbacks are labelled.