Gemma 3 1B vs GPT-5.1 Instant
GPT-5.1 Instant significantly outperforms across most benchmarks.
Google · OpenAI · Updated for 2026
Which is better?
Gemma 3 1B outperforms in 0 benchmarks, while GPT-5.1 Instant is better at 1 benchmark (GPQA). GPT-5.1 Instant significantly outperforms across most benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Gemma 3 1B
- you need open weights you can self-host or fine-tune
Choose GPT-5.1 Instant
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you want the most recent training data — it shipped Nov 2025
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Gemma 3 1B outperforms in 0 benchmarks, while GPT-5.1 Instant is better at 1 benchmark (GPQA).
GPT-5.1 Instant significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Context Window
Maximum input and output token capacity
Only GPT-5.1 Instant specifies input context (400,000 tokens). Only GPT-5.1 Instant specifies output context (128,000 tokens).
Input Capabilities
Supported data types and modalities
GPT-5.1 Instant supports multimodal inputs, whereas Gemma 3 1B does not.
GPT-5.1 Instant can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemma 3 1B
GPT-5.1 Instant
License
Usage and distribution terms
Gemma 3 1B is licensed under Gemma, while GPT-5.1 Instant 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 3 1B was released on 2025-03-12, while GPT-5.1 Instant was released on 2025-11-12.
GPT-5.1 Instant is 8 months newer than Gemma 3 1B.
Mar 12, 2025
1.5 years ago
Nov 12, 2025
9 months ago
8mo 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 3 1B and GPT-5.1 Instant side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemma 3 1B vs GPT-5.1 Instant.