Gemma 2 27B vs o1
o1 leads the LLM Stats Score 21.2 to -0.5.
Google · OpenAI · Updated for 2026
Which is better?
o1 leads the overall LLM Stats Score 21.2 to -0.5, ranking #181 overall.
In the 4 individual benchmarks reported for both models, o1 wins 4; 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 27B
- you need open weights you can self-host or fine-tune
Choose o1
- overall performance matters — it scores 21.2 and ranks #181 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 4 of 4 exact shared results
- you want the most recent training data — it shipped Dec 2024
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 27B · 19 for o1
Gemma 2 27B outperforms in 0 benchmarks, while o1 is better at 4 benchmarks (GSM8k, HumanEval, MATH, MMLU).
o1 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 o1 specifies input context (200,000 tokens). Only o1 specifies output context (100,000 tokens).
License
Usage and distribution terms
Gemma 2 27B is licensed under Gemma, while o1 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 27B was released on 2024-06-27, while o1 was released on 2024-12-17.
o1 is 6 months newer than Gemma 2 27B.
Jun 27, 2024
2.2 years ago
Dec 17, 2024
1.7 years ago
5mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemma 2 27B and o1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemma 2 27B vs o1.