AI Index

Claude Opus 4.1

Language Anthropic Partly verified Retired Shut down Aug 5, 2026 Released Aug 5, 2025
Model ID
Compare with… →
Context
200K
32K max output
Input price
—
Not listed
Output price
—
Not listed
Epoch Capabilities Index
144.1
#72 of 105 listed
LMArena Text
1,448
#56 of 149 listed

Where to run it

2 offerings · prices as listed
MeterTierPrice
Claude API Official Retired Global · USD claude-opus-4-1-20250805
InputStandard past price, from the vendor’s page archived Sep 16, 2025$15.00 / 1M tokens
Batch past price, from the vendor’s page archived Sep 16, 2025$7.50 / 1M tokens
OutputStandard past price, from the vendor’s page archived Sep 16, 2025$75.00 / 1M tokens
Batch past price, from the vendor’s page archived Sep 16, 2025$37.50 / 1M tokens
Cache readStandard past price, from the vendor’s page archived Sep 16, 2025$1.50 / 1M tokens
Cache write5-minute cache past price, from the vendor’s page archived Sep 16, 2025$18.75 / 1M tokens
1-hour cache past price, from the vendor’s page archived Sep 16, 2025$30.00 / 1M tokens
Amazon Bedrock Deprecated Shuts down Jan 8, 2027 us-east-1 · USD Claude Opus 4.1
InputStandard $15.00 / 1M tokens
OutputStandard $75.00 / 1M tokens
Cache readStandard $1.50 / 1M tokens
Cache write5-minute cache $18.75 / 1M tokens

Changes

All changes →
  1. Available → Deprecated on Amazon Bedrock, us-east-1

Cited scores

From third-party leaderboards, not measured by us
  • Epoch Capabilities Index 144.1

    #72 of 105 listed models · CI 141.6–146

  • LMArena Text 1,448

    #56 of 149 listed models · CI 1,445–1,451 · 76,920 votes

  • Epoch AI · FrontierMath Tiers 1–3 12.6%

    #69 of 74 listed models · 32K thinking budget · ±1.97

  • Epoch AI · GPQA Diamond 77.3%

    #71 of 128 listed models · 16K thinking budget · ±2.99

    Also listed: 27K thinking budget 76.8% · claude-opus-4-1-20250805 73.2%

  • Epoch AI · SWE-bench Verified 73.3%

    #18 of 30 listed models · ±2.01

  • LMArena Text · Chinese 1,467

    #74 of 149 listed models · CI 1,459–1,475 · 5,888 votes

  • LMArena Text · Coding 1,505

    #49 of 149 listed models · CI 1,499–1,510 · 15,650 votes

  • Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Oct 3, 2026
  • LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Oct 2, 2026
  • Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Oct 1, 2026
  • changes we made