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Claude Sonnet 4


Claude Sonnet 4 is an AI model from Anthropic logoAnthropic. Claude Sonnet 4 with extended thinking mode for enhanced step-by-step reasoning on complex problems.
Spec
Canonical IDanthropic-claude-4-sonnet-thinking
StatusActive
CreatorAnthropicAnthropic
Intelligence Index
38.7
#68
Coding Index
34.1
#68
Math Index
74.3
#76
MMLU-Pro
0.8
#36
GPQA
0.8
#102
HLE
0.1
#135
LiveCodeBench
0.7
#85
AIME
0.8
#20
IFBench
0.5
#109
Time to First Token
9.27s
#428
SciCode
0.4
#78
MATH-500
1.0
#4
AIME 2025
0.7
#76
LCR
0.6
#54
TerminalBench Hard
0.3
#70
TAU2
0.6
#127
Output TPS
63.0
#174

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 Sonnet 4.61.0M$3.00$15.00Available
Claude Sonnet 4.51.0M$3.00$15.00Available
Claude Sonnet 41.0M$3.00$15.00Deprecated
Claude Sonnet 4Current
Claude Sonnet 4.1200K$3.00$15.00Available
Claude Sonnet 4.5Available
Claude Sonnet 4.6 AdaptiveAvailable
Claude Sonnet 4.6 Non-Reasoning Low EffortAvailable
Claude Sonnet 3.7200K$3.00$15.00Deprecated
Claude Sonnet 3.7200K$3.00$15.00Deprecating
Claude Sonnet 3.5 V2200K$3.00$15.00Deprecating

Other models

ModelTierReleasedContextInput / 1MOutput / 1M
Claude Opus 4.7Opus1.0M$5.00$25.00
Claude Opus 4.6Opus1.0M$5.00$25.00
Claude Opus 4.5Opus410K$5.00$25.00
Claude Haiku 4.5Haiku200K$1.00$5.00
Claude Opus 4.1Opus200K$15.00$75.00
Claude Opus 4Opus410K$15.00$75.00
Claude Haiku 4.5Haiku
Claude Opus 4Opus
Claude Opus 4.1Opus
Claude Opus 4.5Opus

Model IDs