Claude Opus Latest is Anthropic's language model with a 1.0M context window and up to 128K output tokens, starting at $4.00 / 1M input and $20.00 / 1M output. A routing alias that always resolves to the most capable model in Anthropic's Claude Opus family, suited for complex reasoning and nuanced tasks.
Specifications
Canonical IDanthropic-claude-opus
TypeLanguage
StatusActive
CreatorAnthropicAnthropic
Providers
Context Window1.0M tokens
Max Output128K tokens
Input ModalitiesImagePDFText
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 5 months ago

Capabilities

Input3/5
Text✓
Image✓
Audio·
Video·
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities6/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema✓
Web Search✓
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Cache Write 5m
$ / 1M
Cache Write 1h
$ / 1M
Web Search
$ / request
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OpenRouter
~anthropic/claude-opus-latest
$4.00$20.00$0.2$5.00$8.00$0.010

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Claude Opus 5.51.0M$4.00$0.200Available
Claude Opus 51.0M$5.00$0.500Deprecating
Claude Opus 4.81.0M$5.00$0.500Available
Claude Opus 4.71.0M$5.00$0.500Available
Claude Opus 4.61.0M$5.00$0.500Deprecated
Claude Opus 4.5410K$5.00$0.500Deprecating
Claude Opus 4.1200K$15.00$1.50Deprecated
Claude Opus 4410K$5.00$1.50Deprecated
Claude Opus 4.6 Adaptive————Available
Claude Opus 4.5————Available
Claude Opus Latest1.0M$4.00$20.00Current

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Claude Fable 5.1—1.0M$10.00$0.250
Claude Sonnet 5Sonnet1.0M$2.00$0.200
Claude Fable 5Fable1.0M$10.00$1.00
Claude Fable 5.3Fable————
Claude Mythos 5Mythos—1.0M$10.00$1.00
Claude Mythos 5.1Mythos—1.0M$10.00$0.250
Claude Sonnet 4.6Sonnet1.0M$3.00$0.300
Claude Haiku 4.5Haiku200K$1.00$0.100
Claude Sonnet 4.5Sonnet1.0M$3.00$0.300
Claude Sonnet 4Sonnet1.0M$3.00$0.300

Model IDs

~anthropic/claude-opus-latest
anthropic-claude-opus
openrouter/~anthropic/claude-opus-latest