Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competit

Creator: Anthropic
Lifecycle: Active
Context: 200.0K
Max output: 64.0K
Released: Nov 24, 2025
Status: up

Input: $5.00 / 1M tokens
Output: $25.00 / 1M tokens
Cached read: $0.50 / 1M tokens
Cached write: — / 1M tokens
Batch discount: —%
Source: OpenRouter
Verified: Apr 5, 2026 (High)

Capabilities

Modalities: fileimagetext→text
Capabilities: reasoningimageInputpromptCachingfunctionCallingstructuredOutputs

Official Links

Intro

https://openrouter.ai/anthropic/claude-opus-4.5

Docs

https://openrouter.ai/anthropic/claude-opus-4.5

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 4.5	anthropic-claude-opus-4-5	Active	Nov 24, 2025	—	—	Model available via OpenRouter.

Host Coverage

Host	Type	Context	Pricing Note	Differences
OpenRouter	aggregator	200.0K	$5.00/1M in · $25.00/1M out via OpenRouter	—

Migration Guidance

Change Events

Date	Type	Title	Description	Source
Nov 24, 2025	family_added	Claude Opus 4.5 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 4.1, Claude Opus 4.6, Claude Sonnet 4, Claude Sonnet 4, Claude Sonnet 4.5, Claude Sonnet 4.6