Model comparison

GPT-6.1 Sol vs Phi-2

GPT-6.1 Sol has enough public results to be ranked (#6); Phi-2 does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

GPT-6.1 Sol OpenAI

65.6

Rank #6 Confirmed

Phi-2 Microsoft

—

Unranked

Summary

  • They share 1 benchmark with published results for both.
  • Phi-2 has downloadable open weights; the other is API-only.

Side by side

GPT-6.1 Sol and Phi-2 specifications
GPT-6.1 SolPhi-2
ProviderOpenAIMicrosoft
Noometry Index65.6—
Released2026-09-292023-12-12
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked3411

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Category by category

Coding Not comparable

GPT-6.1 Sol: 63.2 (#8), Phi-2: —

Coding benchmarks
BenchmarkGPT-6.1 SolPhi-2
DeepSWE75.2%—
FrontierCode50.2%—
LMArena WebDev1755—
SciCode55.8%—
LMArena Coding1487—
HumanEval+—45.1%
MBPP+—54.2%

Agentic & Tool Use Not comparable

GPT-6.1 Sol: 39.6 (#26), Phi-2: —

Agentic & Tool Use benchmarks
BenchmarkGPT-6.1 SolPhi-2
APEX-Agents60%—
GDP.pdf32%—

Reasoning Not comparable

GPT-6.1 Sol: 81.9 (#2), Phi-2: —

Reasoning benchmarks
BenchmarkGPT-6.1 SolPhi-2
Epoch Capabilities Index166.09107.94
ARC-AGI-294.2%—
NYT Connections (extended)95.5%—
ARC-AGI-198.5%—
CritPt31.7%—
Chess Puzzles61%—
EBR-Bench54.3%—
LMArena Hard Prompts1466—
Mystery Game Puzzles80%—
Adversarial NLI—42.5%
BIG-Bench Hard—59.4%
HellaSwag—53.6%
WinoGrande—54.7%

Math Not comparable

GPT-6.1 Sol: 93.7 (#1), Phi-2: —

Math benchmarks
BenchmarkGPT-6.1 SolPhi-2
FrontierMath (Tiers 1-3)93.7%—
FrontierMath Tier 4100%—
OTIS Mock AIME 2024-2025100%—
ProofBench99%—
LMArena Math1464—

Knowledge Not comparable

GPT-6.1 Sol: 71.8 (#4), Phi-2: —

Knowledge benchmarks
BenchmarkGPT-6.1 SolPhi-2
GPQA Diamond95.4%—
SimpleQA Verified73.9%—
LMArena Expert1502—
ARC (AI2) Challenge—75.9%
MMLU—58.4%
OpenBookQA—73.6%
TriviaQA—45.2%

Multimodal Not comparable

GPT-6.1 Sol: 52.7 (#5), Phi-2: —

Multimodal benchmarks
BenchmarkGPT-6.1 SolPhi-2
LMArena Vision1288—
Furniture Assembly80%—

Multilingual Not comparable

GPT-6.1 Sol: 54.3 (#46), Phi-2: —

Multilingual benchmarks
BenchmarkGPT-6.1 SolPhi-2
LMArena Non-English1438—
LMArena Chinese1477—
LMArena Russian1455—

Instruction Following Not comparable

GPT-6.1 Sol: 77.0 (#29), Phi-2: —

Instruction Following benchmarks
BenchmarkGPT-6.1 SolPhi-2
LMArena Instruction Following1468—

Long Context Not comparable

GPT-6.1 Sol: 44.9 (#54), Phi-2: —

Long Context benchmarks
BenchmarkGPT-6.1 SolPhi-2
LMArena Longer Query1465—

Writing & Preference Not comparable

GPT-6.1 Sol: 63.6 (#63), Phi-2: —

Writing & Preference benchmarks
BenchmarkGPT-6.1 SolPhi-2
LMArena Text1447—
LMArena Creative Writing1432—
LMArena Multi-Turn1449—

Frequently asked questions

Is GPT-6.1 Sol better than Phi-2?

GPT-6.1 Sol has enough public results to be ranked (#6); Phi-2 does not yet, so treat this comparison as directional.

How many benchmarks do GPT-6.1 Sol and Phi-2 share?

1 benchmark has published results for both models. GPT-6.1 Sol has 34 scored results on Noometry and Phi-2 has 11.

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