Gemma 3n 2B is cheaper than GPT-5.1 at $0/M vs $1.25/M input tokens.
| Spec | Gemma 3n 2B | GPT-5.1 |
|---|---|---|
| Input price | Free | $1.25/M tokens |
| Output price | Free | $10/M tokens |
| Context window | 8K tokens | 400K tokens |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Jul 2025 | Nov 2025 |
Not enough votes to call it. On the specs, GPT-5.1 has the edge: bigger model tier, newer, bigger context window.
Reviewing agent-written code?See a Brief PR report
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Gemma 3n 2B uses 8.5x more transitions