Claude Opus 4.1

Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable ga

Creator: Anthropic
Lifecycle: Active
Context: 200.0K
Max output: 32.0K
Released: Aug 5, 2025
Status: up

Input: $15.00 / 1M tokens
Output: $75.00 / 1M tokens
Cached read: $1.50 / 1M tokens
Cached write: — / 1M tokens
Batch discount: —%
Source: OpenRouter
Verified: Apr 5, 2026 (High)

Capabilities

Modalities: imagetextfile→text
Capabilities: reasoningimageInputpromptCachingfunctionCallingstructuredOutputs

Official Links

Intro

https://openrouter.ai/anthropic/claude-opus-4.1

Docs

https://openrouter.ai/anthropic/claude-opus-4.1

Pricing

https://openrouter.ai/models

Benchmark Coverage

Benchmark	Version	Score	Date	Source	Notes

Release History

Release	Alias	Lifecycle	Release Date	Deprecation	Shutdown	Summary
Claude Opus 4.1	anthropic-claude-opus-4-1	Active	Aug 5, 2025	—	—	Model available via OpenRouter.

Host Coverage

Host	Type	Context	Pricing Note	Differences
OpenRouter	aggregator	200.0K	$15.00/1M in · $75.00/1M out via OpenRouter	—

Migration Guidance

Change Events

Date	Type	Title	Description	Source
Aug 5, 2025	family_added	Claude Opus 4.1 published	Model made available via OpenRouter.	OpenRouter

Other models from Anthropic

Claude 3 Haiku, Claude 3 Opus, Claude 3.5 Haiku, Claude 3.5 Sonnet, Claude 3.7 Sonnet, Claude 3.7 Sonnet (thinking), Claude Haiku 4.5, Claude Opus 4, Claude Opus 4, Claude Opus 4.5, Claude Opus 4.6, Claude Sonnet 4, Claude Sonnet 4, Claude Sonnet 4.5, Claude Sonnet 4.6