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Claude Opus 4.1 API Pricing — $15.00/M input, $75.00/M output

Highly intelligent flagship model for complex workflows.

Legacy model — superseded by 4.6 series See Claude Opus 4.8 pricing.
No announced shutdown date. Source · Full retirement tracker
Input
$15.00/M
Output
$75.00/M
Blended
$30.00/M
Provider
Verified 2026-04-06 — source

Speed

Not yet measured — see the speed benchmark leaderboard for models we do track.

Cost at scale

Tokens / monthEst. cost (blended 3:1)
100,000$3.00
1,000,000$30.00
10,000,000$300.00
100,000,000$3000.00

How Claude Opus 4.1 compares

Claude Haiku 4.5 — $2.00/MClaude Sonnet 4.6 — $6.00/MClaude Sonnet 4.5 — $6.00/MClaude Sonnet 4 — $6.00/MClaude Opus 4.8 — $10.00/MClaude Opus 4 — $30.00/MClaude Fable 5 — $20.00/MGPT-4 Turbo — $15.00/M
See all Anthropic models →

FAQ

Is Claude Opus 4.1 cheaper than Claude Opus 4?

Claude Opus 4.1 costs $30.00/M blended tokens, Claude Opus 4 costs $30.00/M — Claude Opus 4 is cheaper.

How much does 1 million tokens cost with Claude Opus 4.1?

At a 3:1 input:output ratio, 1 million blended tokens costs approximately $30.00. Pure input costs $15.00/M; pure output costs $75.00/M.

Who provides Claude Opus 4.1?

Claude Opus 4.1 is served by Anthropic. Pricing was last verified on 2026-04-06 against https://www.anthropic.com/pricing.

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