Claude Opus 4.1 API Pricing
Anthropic · released 2025-08-05
Claude Opus 4.1 price
No official API price published for Claude Opus 4.1 yet.
Benchmarks
| Benchmark | Value | Source | As of |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | No public data yet | ||
| Epoch Mock AIME accuracy | 40.0% | epoch | 2025-08-05 |
| Epoch FrontierMath (T1–3) accuracy | No public data yet | ||
| Arena text rating | 1448 | arena | 2026-10-28 |
| Arena coding rating (human preference votes, not task accuracy) | 1504 | arena | 2026-10-28 |
| Arena math rating | 1433 | arena | 2026-10-28 |
| Arena WebDev rating | 1390 | arena | 2026-10-28 |
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 Opus 4.1?
Claude Opus 4.1 is developed by Anthropic, released 2025-08-05.
Is Claude Opus 4.1'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 Opus 4.1. This page updates automatically once pricing is available.
Which benchmarks is Claude Opus 4.1 scored on?
Claude Opus 4.1 has published results for: Epoch Mock AIME accuracy; Arena text rating; Arena coding rating (human preference votes, not task accuracy); Arena math rating; Arena WebDev rating. The Benchmarks table on this page shows each score with its source and date.
Where does this data come from?
Pricing for Claude Opus 4.1 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.