Grok 4.20 Non-Reasoning
xAI
- Released
- March 10, 2026
- Data date
- October 3, 2026
Grok 4.20 Non-Reasoning has its own API identifier, grok-4.20-0309-non-reasoning, alongside Grok 4.20 reasoning. xAI lists them as separate variants. The Non-Reasoning version accepts text and images with up to 1 million context tokens and produces text.
Sources and data date
Every statement links to its underlying documentation or leaderboard.
| Type | Evidence and data date |
|---|---|
| Research status | Research date October 4, 2026. 3 source URLs checked. This documents the inspected sources, not an exhaustive inventory of every publication. |
| Not published | benchmark-results Original wording The exact old Grok 4.20 0309 non-reasoning page is not a usable exact measured result: AA explicitly labels its composite estimate and says independent evaluation is forthcoming. The observed estimate (14.606641173969 index points) is retained only as a boundary note, not numeric evidence. The AA page for grok-4-20-non-reasoning is a separate 2026-04-07 v2 revision and was excluded. Reasoning and multi-agent records were not transferred. |
| Additional source | xAI Grok 4.20 Non-Reasoning developer docs (retrieved October 3, 2026; October 4, 2026) · xAI Grok 4.20 Non-Reasoning developer docs · Editorial description reviewed October 4, 2026 |