Model comparison

GPT-5.5 vs INTELLECT-1

GPT-5.5 has enough public results to be ranked (#9); INTELLECT-1 does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

GPT-5.5 OpenAI

63.4

Rank #9 Confirmed

Summary

  • They share 1 benchmark with published results for both.

Side by side

GPT-5.5 and INTELLECT-1 specifications
GPT-5.5INTELLECT-1
ProviderOpenAIHugging Face
Noometry Index63.4—
Released2026-04-232024-11-29
WeightsProprietaryProprietary
Context window1.05M—
Max output128K—
Input $ / M tokens$5—
Output $ / M tokens$30—
Results tracked717

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Category by category

Coding Not comparable

GPT-5.5: 58.2 (#17), INTELLECT-1: —

Coding benchmarks
BenchmarkGPT-5.5INTELLECT-1
SWE-bench Verified80.6%—
DeepSWE67%—
FrontierCode43%—
LMArena WebDev1513—
SciCode56.1%—
GSO40.2%—
WeirdML84.9%—
LMArena Coding1494—
MirrorCode10%—
ALE-Bench1,943—

Agentic & Tool Use Not comparable

GPT-5.5: 50.7 (#6), INTELLECT-1: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.5INTELLECT-1
Terminal-Bench84.7%—
APEX-Agents55.1%—
OSWorld 2.013%—
Remote Labor Index6.3%—
τ²-bench Banking44.6%—
DeepResearch Bench54%—
PostTrainBench27.2%—
ExploitBench47.4%—
GBAEval53.2%—
GDP.pdf26%—
LMArena Search1242—
Vending-Bench 27,524—

Reasoning Not comparable

GPT-5.5: 72.8 (#11), INTELLECT-1: —

Reasoning benchmarks
BenchmarkGPT-5.5INTELLECT-1
Epoch Capabilities Index159.1100.86
ARC-AGI-285%—
SimpleBench69%—
Kagi LLM Benchmark88.8%—
NYT Connections (extended)96.2%—
ARC-AGI-195%—
CritPt27.1%—
Chess Puzzles54%—
EBR-Bench34.3%—
LMArena Hard Prompts1489—
Mystery Game Puzzles56%—
DTBench96%—
LMCA54.3%—
Surface Evolver Bench88.1%—
Bench to the Future 30.14—
BIG-Bench Hard—34.9%
ForecastBench60.6—
HellaSwag—71.4%
WinoGrande—65.8%

Math Not comparable

GPT-5.5: 81.7 (#11), INTELLECT-1: —

Knowledge Not comparable

GPT-5.5: 64.4 (#17), INTELLECT-1: —

Knowledge benchmarks
BenchmarkGPT-5.5INTELLECT-1
GPQA Diamond94%—
SimpleQA Verified63%—
Vectara Hallucination Rate9.3%—
LMArena Expert1508—
ARC (AI2) Challenge—54.5%
MMLU—49.9%

Multimodal Not comparable

GPT-5.5: 46.9 (#12), INTELLECT-1: —

Multimodal benchmarks
BenchmarkGPT-5.5INTELLECT-1
LMArena Vision1297—
Blueprint-Bench 236.2%—
Furniture Assembly44.2%—
LMArena Document1486—

Multilingual Not comparable

GPT-5.5: 56.4 (#20), INTELLECT-1: —

Multilingual benchmarks
BenchmarkGPT-5.5INTELLECT-1
LMArena Non-English1467—
LMArena Chinese1533—
LMArena French1486—
LMArena German1480—
LMArena Japanese1498—
LMArena Korean1460—
LMArena Russian1473—
LMArena Spanish1468—

Instruction Following Not comparable

GPT-5.5: 77.5 (#18), INTELLECT-1: —

Instruction Following benchmarks
BenchmarkGPT-5.5INTELLECT-1
LMArena Instruction Following1479—

Long Context Not comparable

GPT-5.5: 48.3 (#12), INTELLECT-1: —

Long Context benchmarks
BenchmarkGPT-5.5INTELLECT-1
CL-bench Life22.2%—
LMArena Longer Query1484—

Writing & Preference Not comparable

GPT-5.5: 72.7 (#13), INTELLECT-1: —

Writing & Preference benchmarks
BenchmarkGPT-5.5INTELLECT-1
LMArena Text1472—
LMArena Creative Writing1455—
EQ-Bench Creative Writing1844—
EQ-Bench 41315—
LMArena Multi-Turn1476—

Frequently asked questions

Is GPT-5.5 better than INTELLECT-1?

GPT-5.5 has enough public results to be ranked (#9); INTELLECT-1 does not yet, so treat this comparison as directional.

How many benchmarks do GPT-5.5 and INTELLECT-1 share?

1 benchmark has published results for both models. GPT-5.5 has 71 scored results on Noometry and INTELLECT-1 has 7.

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