Claude Opus 4.8 Think is Anthropic's language model with a 1.0M context window and up to 128K output tokens, starting at $5.00 / 1M input and $25.00 / 1M output. A top-tier reasoning LLM in the Claude Opus line with an explicit extended-thinking mode for complex multi-step problem solving.
Specifications
Canonical IDanthropic-claude-4-8-opus-think
TypeLanguage
StatusActive
CreatorAnthropicAnthropic
Providers
Context Window1.0M tokens
Max Output128K tokens
Input ModalitiesImage
Output ModalitiesText
Reasoning Effortsdefault

Capabilities

Input1/5
Text·
Image✓
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities4/13
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
Aihubmix
aihubmix/claude-opus-4-8-think
$5.00$25.00$0.5$6.25

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Claude Opus 5.51.0M$4.00$20.00Available
Claude Opus 5.51.0M$2.00$10.00Available
Claude Opus 51.0M$5.00$25.00Deprecating
Claude Opus 51.0M$2.50$12.50Available
Claude Opus 4.81.0M$5.00$25.00Available
Claude Opus 4.81.0M$2.50$12.50Available
Claude Opus 4.71.0M$5.00$25.00Deprecating
Claude Opus 4.71.0M$2.50$12.50Available
Claude Opus 4.61.0M$5.00$25.00Deprecated
Claude Opus 4.61.0M$2.50$12.50Available
Claude Opus 4.8 Think—1.0M$5.00$25.00Current

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Claude Haiku 5.5Haiku1.0M$0.100$0.500
Claude Haiku 5.5 BatchHaiku1.0M$0.050$0.250
Claude Sonnet 5.5Sonnet1.0M$2.00$10.00
Claude Sonnet 5.5 BatchSonnet1.0M$1.00$5.00
Claude Fable 5.1—1.0M$10.00$50.00
Claude Fable 5.1Fable1.0M$5.00$25.00
Claude Fable 5Fable1.0M$5.00$25.00
Claude Sonnet 5Sonnet1.0M$2.00$10.00
Claude Sonnet 5Sonnet1.0M$1.00$5.00
Claude Fable 5Fable1.0M$10.00$50.00

Model IDs

aihubmix/claude-opus-4-8-think
anthropic-claude-4-8-opus-think