Gemini 3 Flash Preview vs GPT-5.1
For product management work, compared on the PM Index.
- GPT-5.1 leads on the PM Index (48.1 vs 46.7).
- Gemini 3 Flash Preview is cheaper ($1.13 vs $3.44 per 1M tokens).
- Gemini 3 Flash Preview is faster (177 vs 131 tok/s).
| Metric | Gemini 3 Flash Preview | GPT-5.1 |
|---|---|---|
| PM Index | 46.7 | 48.1 |
| AA Intelligence | 46.4 | 47.7 |
| AA Coding | 42.6 | 44.7 |
| AA Agentic | 49.7 | 51.3 |
| Blended $/1M | $1.13 | $3.44 |
| Output tok/s | 177 | 131 |