Gemma 2 9B vs o3-mini
o3-mini leads the LLM Stats Score 21.5 to -4.9.
Google · OpenAI · Updated for 2026
Which is better?
o3-mini leads the overall LLM Stats Score 21.5 to -4.9, ranking #187 overall.
In the 2 individual benchmarks reported for both models, o3-mini wins 2; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemma 2 9B
- you need open weights you can self-host or fine-tune
Choose o3-mini
- overall performance matters — it scores 21.5 and ranks #187 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
- you want the most recent training data — it shipped Jan 2025
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
16 reported for Gemma 2 9B · 25 for o3-mini
Gemma 2 9B outperforms in 0 benchmarks, while o3-mini is better at 2 benchmarks (MATH, MMLU).
o3-mini significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only o3-mini specifies input context (200,000 tokens). Only o3-mini specifies output context (100,000 tokens).
License
Usage and distribution terms
Gemma 2 9B is licensed under Gemma, while o3-mini uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Gemma
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Gemma 2 9B was released on 2024-06-27, while o3-mini was released on 2025-01-30.
o3-mini is 7 months newer than Gemma 2 9B.
Jun 27, 2024
2.2 years ago
Jan 30, 2025
1.6 years ago
7mo newerKnowledge Cutoff
When training data ends
o3-mini has a documented knowledge cutoff of 2023-09-30, while Gemma 2 9B's cutoff date is not specified.
We can confirm o3-mini's training data extends to 2023-09-30, but cannot make a direct comparison without Gemma 2 9B's cutoff date.
—
Sep 2023
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemma 2 9B and o3-mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemma 2 9B vs o3-mini.