Claude Sonnet 4 API Pricing
Anthropic · released 2025-05-22
Claude Sonnet 4 price
No official API price published for Claude Sonnet 4 yet.
Benchmarks
| Benchmark | Value | Source | As of |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | No public data yet | ||
| Epoch Mock AIME accuracy | 28.9% | epoch | 2025-05-22 |
| Epoch FrontierMath (T1–3) accuracy | No public data yet | ||
| Arena text rating | 1391 | arena | 2026-10-28 |
| Arena coding rating (human preference votes, not task accuracy) | 1449 | arena | 2026-10-28 |
| Arena math rating | 1390 | arena | 2026-10-28 |
| Arena WebDev rating | No public data yet | ||
More from Anthropic
| Model | Released | Blended $/1M |
|---|---|---|
| Claude Haiku 5.5 | 2026-10-07 | $0.20 |
| Claude Sonnet 5.5 | 2026-09-28 | $4.00 |
| Claude Opus 5.5 | 2026-09-22 | $8.00 |
| Claude Mythos 5.1 | 2026-09-01 | $20.00 |
| Claude Fable 5.1 | 2026-09-01 | $20.00 |
| Claude Opus 5 | 2026-07-24 | $10.00 |
| Claude Sonnet 5 | 2026-06-30 | $4.00 |
| Claude Mythos 5 | 2026-06-09 | $20.00 |
Prices: Anthropic's official list price as recorded by None; benchmarks: see sources below; last synced 2026-11-06.
FAQ
Who develops Claude Sonnet 4?
Claude Sonnet 4 is developed by Anthropic, released 2025-05-22.
Is Claude Sonnet 4's API pricing published?
No — as of the last data sync (2026-11-06), neither models.dev nor LiteLLM has published official API pricing for Claude Sonnet 4. This page updates automatically once pricing is available.
Which benchmarks is Claude Sonnet 4 scored on?
Claude Sonnet 4 has published results for: Epoch Mock AIME accuracy; Arena text rating; Arena coding rating (human preference votes, not task accuracy); Arena math rating. The Benchmarks table on this page shows each score with its source and date.
Where does this data come from?
Pricing for Claude Sonnet 4 comes from models.dev and LiteLLM (open MIT-licensed catalogs); benchmark scores come from Epoch AI and LMArena (open CC BY 4.0 licenses) — see /data-sources/. Last synced 2026-11-06.