Claude 4 Sonnet by Anthropic. A new generation model with improved capabilities, especially on programming and development. NOTE: Inputs > 200k tokens are charged at 2x input, 1.5x output rate.
Added Sep 29, 2025
Context Window
200.0K
Max Output
64.0K
Input Price (Auto)
$2.99/1M
Output Price (Auto)
$14.99/1M
Cache Read (Auto)
$0.30/1M
Capabilities
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
33.0
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Coding Index
30.6
GPQA Diamond
Graduate-level scientific reasoning
68.3%
Better than 59% of models compared
HLE
Humanity's Last Exam
4.0%
Better than 15% of models compared
IFBench
Instruction-following benchmark
45.4%
Better than 60% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
52.3%
Better than 61% of models compared
AA-LCR
Long context reasoning evaluation
44.3%
Better than 62% of models compared
SciCode
Python programming for scientific computing
37.3%
Better than 73% of models compared
Terminal-Bench Hard
Agentic coding and terminal use
27.3%
Better than 76% of models compared
AIME 2025
American Invitational Mathematics Examination 2025
38.0%
Better than 39% of models compared
AIME
American Invitational Mathematics Examination
40.7%
Better than 64% of models compared
MMLU-Pro
Professional and academic subject knowledge
83.7%
Better than 86% of models compared
Last updated May 15, 2026
Artificial AnalysisLiveCodeBench
Contamination-free coding benchmark
44.9%
Better than 52% of models compared
Math-500
Diverse mathematical problem solving benchmark
93.4%
Better than 74% of models compared
