Gemini 3.5 Flash (high) vs GPT-5.1 (high)
For product management work, compared on the PM Index.
- Gemini 3.5 Flash (high) leads on the PM Index (57.3 vs 48.1).
- Gemini 3.5 Flash (high) is cheaper ($3.38 vs $3.44 per 1M tokens).
- Gemini 3.5 Flash (high) is faster (166 vs 139 tok/s).
| Metric | Gemini 3.5 Flash (high) | GPT-5.1 (high) |
|---|---|---|
| PM Index | 57.3 | 48.1 |
| AA Intelligence | 55.3 | 47.7 |
| AA Coding | 45.0 | 44.7 |
| AA Agentic | 70.3 | 51.3 |
| Blended $/1M | $3.38 | $3.44 |
| Output tok/s | 166 | 139 |