Claude Opus 4.1 is an AI model from Anthropic. Claude Opus 4.1 with extended thinking mode enabled for deeper chain-of-thought reasoning on complex problems.
Specifications
Canonical IDanthropic-claude-4-1-opus-thinking
StatusActive
CreatorAnthropicAnthropic
Benchmarks
Intelligence Index
#51
Math Index
#83
MMLU-Pro
#8
GPQA
#148
HLE
#194
LiveCodeBench
#115
IFBench
#145
Time to First Token
#69
SciCode
#145
AIME 2025
#83
LCR
#109
TerminalBench Hard
#76
TAU2
#147
Output TPS
#304

Capabilities

Input0/5
Text·
Image·
Audio·
Video·
PDF·
Output0/5
Text·
Image·
Audio·
Video·
Embedding·
Capabilities0/13
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·

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Claude Opus 5.51.0M$4.00$20.00Available
Claude Opus 51.0M$5.00$25.00Deprecating
Claude Opus 4.81.0M$5.00$25.00Available
Claude Opus 4.71.0M$5.00$25.00Available
Claude Opus 4.61.0M$5.00$25.00Deprecated
Claude Opus 4.5410K$5.00$25.00Deprecating
Claude Opus 4.1200K$15.00$75.00Deprecated
Claude Opus 4410K$5.00$25.00Deprecated
Claude Opus 4.1————Current
Claude Opus 4.6 Adaptive————Available
Claude Opus 4.5————Available

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Claude Sonnet 5.5Sonnet1.0M$2.00$10.00
Claude Fable 5.1—1.0M$10.00$50.00
Claude Sonnet 5Sonnet1.0M$2.00$10.00
Claude Fable 5Fable1.0M$10.00$50.00
Claude Fable 5.3Fable————
Claude Mythos 5Mythos—1.0M$10.00$50.00
Claude Mythos 5.1Mythos—1.0M$10.00$50.00
Claude Sonnet 5.5 BatchSonnet—1.0M$1.00$5.00
Claude Sonnet 5.5 US GovSonnet—1.0M$2.40$12.00
Claude Sonnet 4.6Sonnet1.0M$3.00$15.00

Model IDs

anthropic-claude-4-1-opus-thinking
claude-4-1-opus-thinking