Gemini 3.5 Flash vs GPT-5.6 Terra
For product management work, compared on the PM Index.
- GPT-5.6 Terra leads on the PM Index (55.7 vs 49.6).
- Gemini 3.5 Flash is cheaper ($3.38 vs $5.63 per 1M tokens).
- Gemini 3.5 Flash is faster (161 vs 144 tok/s).
| Metric | Gemini 3.5 Flash | GPT-5.6 Terra |
|---|---|---|
| PM Index | 49.6 | 55.7 |
| AA Intelligence | 50.2 | 55.0 |
| AA Coding | 70.1 | 76.7 |
| AA Agentic | 37.4 | 47.4 |
| Blended $/1M | $3.38 | $5.63 |
| Output tok/s | 161 | 144 |