Claude Opus 4.1
Flagship Claude model for deep reasoning, coding, and long-horizon agents
Context
200,000
Max output
64,000
Input / 1M
$13.00
Output / 1M
$64.00
Providers
15
01Profile
Profile
Released
2025-11-18
Last updated
2025-11-18
Knowledge cutoff
2025-03-31
Weights
Closed
02Capabilities
Capabilities
Input
text · image · pdf
Output
text
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Attachments
Yes
Cache read
—
Cache write
—
03Pricing
Pricing across 19 providers
Per 1M tokens, USD. Sorted by input price. First-party row highlighted.
04History
Change history
12+ recent events since 2025-11-18
2026-09-14Addednano-gptoffering→ new
2026-08-30Removednano-gptofferingremoved→ new
2026-08-27Removedorcarouterofferingremoved→ new
2026-08-27Price uprequestyinput / 1M$13.50→ $15.00
2026-08-27Price uprequestyoutput / 1M$67.50→ $75.00
2026-08-20Price cutrequestyinput / 1M$15.00→ $13.50
2026-08-20Price cutrequestyoutput / 1M$75.00→ $67.50
2026-08-14Removedcloudflare-ai-gatewayofferingremoved→ new
2026-08-06DeprecatedopencodeStatus—→ deprecated
2026-08-05Removedanthropicofferingremoved→ new
2026-08-03Price upnano-gptinput / 1M$14.99→ $15.00
2026-08-03Price cutnano-gptoutput / 1M$75.00→ $75.00