Grok-4.20
Fast multimodal chat and everyday tasks that don’t need extended reasoning.
Grok-4.20 supersedes Grok-3, Grok-3 Mini.
What are Grok-4.20's specs and price?
Grok-4.20, built by xAI, ships a 1M-token context window and a 32K-token max output, released 2026-03. It supports text and vision input and costs $3.00 per million blended tokens, the 24th-cheapest of 32 models we track.
Specs
| Context window | 1M tokens |
| Max output | 32K tokens |
| Modalities | text, vision |
| Extended thinking | No |
| Released | 2026-03 |
| Knowledge cutoff | 2026-01 |
| Provider | xAI |
Verified 2026-08-08 — source.
Where it ranks
Strengths
- Instant multimodal responses
- Same 1M context as the reasoning variant
- Lower cost than the reasoning model
More about Grok-4.20
FAQ
What is Grok-4.20's context window?
Grok-4.20 has a 1M-token context window and a 32K-token max output — the 4th-largest context of the 32 current models we track. Source: https://docs.x.ai/docs/models, verified 2026-08-08.
Does Grok-4.20 support vision or audio input?
Yes — Grok-4.20 accepts vision input in addition to text.
Does Grok-4.20 have a reasoning or extended-thinking mode?
No — Grok-4.20 does not expose a separate reasoning/extended-thinking mode.
When was Grok-4.20 released, and what is its knowledge cutoff?
Grok-4.20 was released 2026-03 with a knowledge cutoff of 2026-01.
How much does Grok-4.20 cost, and who provides it?
Grok-4.20 is served by xAI at $3.00/M blended tokens (3:1 input:output) — the 24th-cheapest of 32 current models. Full pricing breakdown: /llm-api-pricing/grok-4-20-0309-non-reasoning.