Noometry

Model comparison

Claude 3 Sonnet vs GPT-6.1 Sol

GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 29.0 on the Noometry Index.

Last verified . 16 shared benchmarks.

Claude 3 Sonnet Anthropic

29.0

Rank #319 Confirmed

GPT-6.1 Sol OpenAI

65.6

Rank #6 Confirmed

Summary

  • They share 16 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and GPT-6.1 Sol in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-6.1 Sol leads 93.7 to 10.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 100% for GPT-6.1 Sol.

Side by side

Claude 3 SonnetGPT-6.1 Sol
ProviderAnthropicOpenAI
Noometry Index29.065.6
Released2024-02-292026-09-29
WeightsProprietaryProprietary
Context window—1.05M
Max output—128K
Input $ / M tokens—$2
Output $ / M tokens—$10
Results tracked3034

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Category by category

Coding GPT-6.1 Sol leads

Claude 3 Sonnet: 29.6 (#302), GPT-6.1 Sol: 63.2 (#8)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
LMArena Coding12231487
DeepSWE—75.2%
FrontierCode—50.2%
LMArena WebDev—1755
SciCode—55.8%
WeirdML10.2%—
BigCodeBench Instruct42.7%—
BigCodeBench Complete53.8%—
HumanEval+64%—
MBPP+69.3%—

Agentic & Tool Use Not comparable

Claude 3 Sonnet: —, GPT-6.1 Sol: 39.6 (#26)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
APEX-Agents—60%
GDP.pdf—32%

Reasoning GPT-6.1 Sol leads

Claude 3 Sonnet: 20.5 (#237), GPT-6.1 Sol: 81.9 (#2)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
LMArena Hard Prompts11971466
Epoch Capabilities Index120.7166.09
ARC-AGI-2—94.2%
NYT Connections (extended)—95.5%
ARC-AGI-1—98.5%
CritPt—31.7%
Chess Puzzles—61%
EBR-Bench—54.3%
Mystery Game Puzzles—80%
DTBench53.6%—
WinoGrande75.1%—

Math GPT-6.1 Sol leads

Claude 3 Sonnet: 10.7 (#310), GPT-6.1 Sol: 93.7 (#1)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
OTIS Mock AIME 2024-20252.5%100%
LMArena Math12131464
FrontierMath (Tiers 1-3)—93.7%
FrontierMath Tier 4—100%
ProofBench—99%
MATH Level 518.2%—

Knowledge GPT-6.1 Sol leads

Claude 3 Sonnet: 21.1 (#276), GPT-6.1 Sol: 71.8 (#4)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
GPQA Diamond40.6%95.4%
LMArena Expert11731502
SimpleQA Verified—73.9%
MMLU75.9%—

Multimodal GPT-6.1 Sol leads

Claude 3 Sonnet: 25.2 (#125), GPT-6.1 Sol: 52.7 (#5)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
LMArena Vision9841288
Furniture Assembly—80%

Multilingual GPT-6.1 Sol leads

Claude 3 Sonnet: 37.8 (#234), GPT-6.1 Sol: 54.3 (#46)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
LMArena Non-English12051438
LMArena Chinese11891477
LMArena Russian12271455
LMArena French1229—
LMArena German1204—
LMArena Japanese1131—
LMArena Korean1128—
LMArena Spanish1204—

Instruction Following GPT-6.1 Sol leads

Claude 3 Sonnet: 62.8 (#235), GPT-6.1 Sol: 77.0 (#29)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
LMArena Instruction Following11991468

Long Context GPT-6.1 Sol leads

Claude 3 Sonnet: 36.7 (#228), GPT-6.1 Sol: 44.9 (#54)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
LMArena Longer Query12111465

Writing & Preference GPT-6.1 Sol leads

Claude 3 Sonnet: 42.1 (#238), GPT-6.1 Sol: 63.6 (#63)

BenchmarkClaude 3 SonnetGPT-6.1 Sol
LMArena Text12181447
LMArena Creative Writing11861432
LMArena Multi-Turn12271449

Frequently asked questions

Is Claude 3 Sonnet better than GPT-6.1 Sol?

GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 29.0 on the Noometry Index.

Is Claude 3 Sonnet or GPT-6.1 Sol better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 29.6 in the Noometry coding category.

How many benchmarks do Claude 3 Sonnet and GPT-6.1 Sol share?

16 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and GPT-6.1 Sol has 34.

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