Run or Rent

Anthropic · closed weights · frontier

Anthropic: Claude Sonnet 4.5

Closed weights. There is no public download, so a local speed only exists if you type one in. The published id does not state a parameter count, so none is stored. Size class is this site's filter bucket, not a benchmark.

API price, in pounds

Input, per million
£2.24
Output, per million
£11.18

OpenRouter lists $3.0000 in and $15.0000 out per million tokens. Converted at 0.74501 on 2026-11-10. Fetched 2026-11-11. Context length listed as 1,000,000 tokens.

Price feed · Model listing · Exchange rate

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Sourced local speeds

No sourced tokens-per-second figure for this model. A speed is not invented. You can type one in the calculator if you have measured it.

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