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Leaderboard/Claude Sonnet 4.5
Anthropic

Claude Sonnet 4.5

by Anthropic 路 Released 2025-09-29

40.6
avg score
$3.00/1M
Input Price
$15.00/1M
Output Price
1.0M tokens (~500 books)
Context Window
multimodal
Type

Tested on 18 benchmarks with 40.6% average. Top scores: MATH level 5 (97.7%), OTIS Mock AIME 2024-2025 (77.8%), GPQA diamond (76.4%).

Benchmark Scores

BenchmarkCategoryScoreBar
MATH level 5math97.7
OTIS Mock AIME 2024-2025math77.8
GPQA diamondknowledge76.4
SWE-Bench Verified (Bash Only)coding70.6
OSWorldagentic62.9
Cybenchcoding55.0
DeepResearch Benchknowledge52.6
WeirdMLcoding47.7
SimpleBenchreasoning45.2
Terminal Benchcoding42.8
SimpleQA Verifiedknowledge23.6
FrontierMath-2025-02-28-Privatemath15.2
GSO-Benchcoding14.7
ARC-AGI-2reasoning13.6
Chess Puzzlesknowledge12.0
VPCTknowledge9.7
HLEknowledge9.4
FrontierMath-Tier-4-2025-07-01-Privatemath4.2

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Anthropic Claude Sonnet Timeline

Claude 3 Sonnet
28.3
N/AN/Actx6 benchmarks
Claude 3.5 Sonnet
28.8+0.5
$6.00/M in200Kctx10 benchmarks
Claude 3.7 Sonnet
42.1+13.3
$3.00/M in(-3)200Kctx20 benchmarks
Claude 3.7 Sonnet (thinking)
42.1
$3.00/M in200Kctx20 benchmarks
Claude Sonnet 4
36.9-5.2
$3.00/M in200Kctx20 benchmarks
Claude Sonnet 4.5
40.6+3.7
$3.00/M in1.0Mctx(+800K)18 benchmarks
Claude Sonnet 4.6
47.3+6.7
$3.00/M in1.0Mctx8 benchmarks