Gemini 3.1 Pro Preview vs Grok 4.6
Facts only. This page does not pick a winner. For a picked winner, see the use case comparison on Tools.
| Gemini 3.1 Pro Preview | Grok 4.6 | |
|---|---|---|
| API model IDs | gemini-3.1-pro-preview | grok-4.6 |
| Context window | 1,048,576 | 500,000 |
| Lifecycle | active | active |
| License | proprietary | proprietary |
| Trains on API data | No | No |
| Zero data retention | on-request | yes |
| Input per 1M tokens | $2 (verified 2026-09-08) | $2 (verified 2026-09-08) |