Grok 4.20 (reasoning) vs Grok 4.20 (non-reasoning)
Facts only. This page does not pick a winner. For a picked winner, see the use case comparison on Tools.
| Grok 4.20 (reasoning) | Grok 4.20 (non-reasoning) | |
|---|---|---|
| API model IDs | grok-4.20-0309-reasoning, grok-4.20, grok-4.20-reasoning, grok-4.20-reasoning-latest | grok-4.20-0309-non-reasoning, grok-4.20-non-reasoning, grok-4.20-non-reasoning-latest |
| Context window | 1,000,000 | 1,000,000 |
| Lifecycle | active | active |
| License | proprietary | proprietary |
| Trains on API data | No | No |
| Zero data retention | yes | yes |
| Input per 1M tokens | $1.25 (verified 2026-09-08) | $1.25 (verified 2026-09-08) |