Noometry

Model comparison

Gemma 3 1B vs GPT-5.2 Codex

GPT-5.2 Codex is the stronger model overall, scoring 42.2 to 20.7 on the Noometry Index.

Last verified . 0 shared benchmarks.

Gemma 3 1B Google

20.7

Rank #348 Reported

GPT-5.2 Codex OpenAI

42.2

Rank #107 Reported

Summary

  • The widest gap is in agentic & tool use, where GPT-5.2 Codex leads 40.7 to 13.5.
  • Gemma 3 1B has downloadable open weights; the other is API-only.

Side by side

Gemma 3 1BGPT-5.2 Codex
ProviderGoogleOpenAI
Noometry Index20.742.2
Released2025-03-122025-12-18
WeightsOpenProprietary
Context window—400K
Max output—128K
Input $ / M tokens—$1.75
Output $ / M tokens—$14
Results tracked45

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Category by category

Coding Not comparable

Gemma 3 1B: —, GPT-5.2 Codex: 45.4 (#66)

BenchmarkGemma 3 1BGPT-5.2 Codex
SWE-bench Verified (bash only)—72.8%
LMArena WebDev—1339
SWE-bench Multilingual—66.3%
ALE-Bench—1,300

Agentic & Tool Use GPT-5.2 Codex leads

Gemma 3 1B: 13.5 (#144), GPT-5.2 Codex: 40.7 (#20)

BenchmarkGemma 3 1BGPT-5.2 Codex
Terminal-Bench—66.5%
Berkeley Function Calling Leaderboard7.2%—

Reasoning Not comparable

Gemma 3 1B: 18.5 (#260), GPT-5.2 Codex: —

BenchmarkGemma 3 1BGPT-5.2 Codex
Chess Puzzles0%—

Math Not comparable

Gemma 3 1B: 9.6 (#310), GPT-5.2 Codex: —

BenchmarkGemma 3 1BGPT-5.2 Codex
OTIS Mock AIME 2024-20251.1%—

Knowledge Not comparable

Gemma 3 1B: 7.1 (#309), GPT-5.2 Codex: —

BenchmarkGemma 3 1BGPT-5.2 Codex
GPQA Diamond19.9%—

Frequently asked questions

Is Gemma 3 1B better than GPT-5.2 Codex?

GPT-5.2 Codex is the stronger model overall, scoring 42.2 to 20.7 on the Noometry Index.

How many benchmarks do Gemma 3 1B and GPT-5.2 Codex share?

0 benchmarks have published results for both models. Gemma 3 1B has 4 scored results on Noometry and GPT-5.2 Codex has 5.

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