Noometry

Model comparison

Claude 2 vs GPT-5.6 Sol

GPT-5.6 Sol is the stronger model overall, scoring 65.0 to 25.0 on the Noometry Index.

Last verified . 4 shared benchmarks.

Claude 2 Anthropic

25.0

Rank #346 Reported

GPT-5.6 Sol OpenAI

65.0

Rank #7 Confirmed

Summary

  • They share 4 benchmarks with published results for both. Claude 2 scores higher in 0 categories and GPT-5.6 Sol in 3 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.6 Sol leads 85.6 to 9.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 2 and 100% for GPT-5.6 Sol.

Side by side

Claude 2GPT-5.6 Sol
ProviderAnthropicOpenAI
Noometry Index25.065.0
Released2023-07-112026-07-09
WeightsProprietaryProprietary
Context window—1.05M
Max output—128K
Input $ / M tokens—$4
Output $ / M tokens—$20
Results tracked865

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Category by category

Coding Not comparable

Claude 2: —, GPT-5.6 Sol: 65.1 (#7)

BenchmarkClaude 2GPT-5.6 Sol
DeepSWE—72.7%
FrontierCode—47.5%
CursorBench—41.7%
LMArena WebDev—1618
FrontierSWE—32.2%
SciCode—57.1%
GSO—76.5%
WeirdML—89.4%
LMArena Coding—1498
MirrorCode—20%
ALE-Bench—2,177
HumanEval+61.6%—

Agentic & Tool Use Not comparable

Claude 2: —, GPT-5.6 Sol: 50.3 (#7)

BenchmarkClaude 2GPT-5.6 Sol
APEX-Agents—51.4%
OSWorld 2.0—27.3%
τ²-bench Banking—46.9%
PostTrainBench—36.2%
BALROG—60%
GBAEval—52.6%
GDP.pdf—30.7%
LMArena Search—1257
Vending-Bench 2—9,619

Reasoning GPT-5.6 Sol leads

Claude 2: 21.7 (#216), GPT-5.6 Sol: 74.8 (#8)

BenchmarkClaude 2GPT-5.6 Sol
DTBench51.9%96%
Epoch Capabilities Index120.13161.66
ARC-AGI-2—92.5%
SimpleBench—71.7%
Kagi LLM Benchmark—67%
NYT Connections (extended)—93.8%
ARC-AGI-1—97.5%
CritPt—32.3%
Chess Puzzles—64%
EnigmaEval—37.1%
EBR-Bench—44.8%
LMArena Hard Prompts—1484
Mystery Game Puzzles—58%
LMCA—59.2%
Surface Evolver Bench—93.1%
Bench to the Future 3—0.14

Math GPT-5.6 Sol leads

Claude 2: 9.3 (#320), GPT-5.6 Sol: 85.6 (#9)

BenchmarkClaude 2GPT-5.6 Sol
OTIS Mock AIME 2024-20252.5%100%
FrontierMath (Tiers 1-3)—89.1%
FrontierMath Tier 4—82.9%
ProofBench—83%
LMArena Math—1474
MATH Level 511.7%—
FrontierMath Erdős—0%

Knowledge GPT-5.6 Sol leads

Claude 2: 16.9 (#287), GPT-5.6 Sol: 64.3 (#18)

BenchmarkClaude 2GPT-5.6 Sol
GPQA Diamond34.7%93.5%
SimpleQA Verified—69.7%
Vectara Hallucination Rate—12.4%
LMArena Expert—1516
MMLU78.5%—
TriviaQA87.5%—

Multimodal Not comparable

Claude 2: —, GPT-5.6 Sol: 48.6 (#9)

BenchmarkClaude 2GPT-5.6 Sol
LMArena Vision—1281
Blueprint-Bench 2—33.6%
Furniture Assembly—56.7%
LMArena Document—1483

Multilingual Not comparable

Claude 2: —, GPT-5.6 Sol: 55.3 (#32)

BenchmarkClaude 2GPT-5.6 Sol
LMArena Non-English—1452
LMArena Chinese—1527
LMArena French—1477
LMArena German—1476
LMArena Japanese—1471
LMArena Korean—1442
LMArena Russian—1468
LMArena Spanish—1441

Instruction Following Not comparable

Claude 2: —, GPT-5.6 Sol: 77.7 (#16)

BenchmarkClaude 2GPT-5.6 Sol
LMArena Instruction Following—1482

Long Context Not comparable

Claude 2: —, GPT-5.6 Sol: 45.4 (#42)

BenchmarkClaude 2GPT-5.6 Sol
LMArena Longer Query—1480

Writing & Preference Not comparable

Claude 2: —, GPT-5.6 Sol: 73.3 (#12)

BenchmarkClaude 2GPT-5.6 Sol
LMArena Text—1457
LMArena Creative Writing—1448
EQ-Bench Creative Writing—1972
EQ-Bench 4—1250
LMArena Multi-Turn—1460

Frequently asked questions

Is Claude 2 better than GPT-5.6 Sol?

GPT-5.6 Sol is the stronger model overall, scoring 65.0 to 25.0 on the Noometry Index.

How many benchmarks do Claude 2 and GPT-5.6 Sol share?

4 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and GPT-5.6 Sol has 65.

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