Claude Opus 4.5

Language Anthropic Partly verified Released Nov 24, 2025
  • In Input modalities: TextImage Out Output modalities: Text
  • Reasoning· low, medium, high
  • Tool use
  • Structured output

Prices

8 offerings · prices as listed
Claude API (opens in a new tab) Official Global · USD claude-opus-4-5
Conditions/ 1M tokensInputCache readCache writeOutput
5-minute cache1-hour cache
Standard $5.00$0.50$6.25$10.00$25.00
Batch $2.50———$12.50

Prices from Claude API pricing (opens in a new tab) (checked Nov 8, 2026)

Standard: the price a request with no conditions pays (the headline price elsewhere on the site).

Details

Knowledge cutoff
May 2025
Open weights
—
Family
claude-opus
Model ID

Not stated on Anthropic’s pages: max input, reasoning can be off, max thinking budget, built-in tools, aliases.

Cited scores

From third-party leaderboards, not measured by us
  • Epoch Capabilities Index 151.8

    #53 of 118 listed models · CI 150.2–153.4

  • Epoch AI · Chess Puzzles 14%

    #73 of 85 listed models · 59K thinking budget · ±3.49

    Also listed: 32K thinking budget 5% · claude-opus-4-5-20251101 5%

  • Epoch AI · EBR-bench 14.3%

    #19 of 28 listed models · 128K thinking budget

  • Epoch AI · FrontierMath Tier 4 v2 4.9%

    #58 of 65 listed models · 32K thinking budget · ±3.41

  • Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Oct 7 – Nov 5, 2026
  • EQ-Bench by Samuel J. Paech (eqbench.com; EQ-bench/EQ-bench-site on GitHub), MIT License. · License · as of Oct 28, 2026
  • LiveBench (White et al.), release 2026-06-25, livebench.ai, licensed CC BY-SA 4.0. This board, adapted from it, is shared under CC BY-SA 4.0. · License · as of Jun 25, 2026
  • changes we made

Included in coding plans

  • Kiro Pro $20.00 / month
    1,000 credits per month
  • Kiro Pro+ $40.00 / month
    2,000 credits per month
  • Kiro Pro Max $100.00 / month
    5,000 credits per month
  • Kiro Power $200.00 / month
    10,000 credits per month

All coding plans →

  1. 3 new prices on Claude API Cache write (1-hour cache) $10.00 · Input (Batch) $2.50 · Output (Batch) $12.50

Sources

Anthropic’s official policies: data use, privacy, terms →

Some values on this page are still waiting to be checked against official pages: a filled dot is verified, a hollow one is not yet (with or without a source on file). How we verify data

Anthropic · United States · anthropic.com

Snapshots, the same family and other models from this provider