Model comparison

GPT-5.2 Pro vs phi-3-medium 14B

GPT-5.2 Pro is the stronger model overall, scoring 52.3 to 29.7 on the Noometry Index.

Last verified . 1 shared benchmarks.

GPT-5.2 Pro OpenAI

52.3

Rank #39 Reported

phi-3-medium 14B Microsoft

29.7

Rank #306 Reported

Summary

  • They share 1 benchmark with published results for both. GPT-5.2 Pro scores higher in 1 category and phi-3-medium 14B in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in math, where GPT-5.2 Pro leads 65.3 to 27.3.
  • phi-3-medium 14B has downloadable open weights; the other is API-only.

Side by side

GPT-5.2 Pro and phi-3-medium 14B specifications
GPT-5.2 Prophi-3-medium 14B
ProviderOpenAIMicrosoft
Noometry Index52.329.7
Released2025-12-112024-04-23
WeightsProprietaryOpen
Context window400K—
Max output128K—
Input $ / M tokens$21—
Output $ / M tokens$168—
Results tracked813

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Category by category

Coding Not comparable

GPT-5.2 Pro: —, phi-3-medium 14B: 36.8 (#201)

Coding benchmarks
BenchmarkGPT-5.2 Prophi-3-medium 14B
BigCodeBench Instruct—37.6%
BigCodeBench Complete—48.7%

Reasoning Not comparable

GPT-5.2 Pro: 51.5 (#33), phi-3-medium 14B: —

Reasoning benchmarks
BenchmarkGPT-5.2 Prophi-3-medium 14B
Epoch Capabilities Index155.4121.23
ARC-AGI-254.2%—
SimpleBench57.4%—
NYT Connections (extended)79.3%—
ARC-AGI-190.5%—
Adversarial NLI—55.8%
BIG-Bench Hard—81.4%
HellaSwag—82.4%
WinoGrande—81.5%

Math GPT-5.2 Pro leads

GPT-5.2 Pro: 65.3 (#29), phi-3-medium 14B: 27.3 (#250)

Math benchmarks
BenchmarkGPT-5.2 Prophi-3-medium 14B
FrontierMath (Tiers 1-3)74%—
FrontierMath Tier 446%—
MATH Level 5—17.6%
FrontierMath Tier 4 (v1)31.3%—

Knowledge Not comparable

GPT-5.2 Pro: —, phi-3-medium 14B: 9.1 (#306)

Knowledge benchmarks
BenchmarkGPT-5.2 Prophi-3-medium 14B
GPQA Diamond—27.6%
ARC (AI2) Challenge—91.6%
MMLU—78%
OpenBookQA—87.4%
TriviaQA—73.9%

Frequently asked questions

Is GPT-5.2 Pro better than phi-3-medium 14B?

GPT-5.2 Pro is the stronger model overall, scoring 52.3 to 29.7 on the Noometry Index.

How many benchmarks do GPT-5.2 Pro and phi-3-medium 14B share?

1 benchmark has published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and phi-3-medium 14B has 13.

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