Grok 4.20 Beta Non-Reasoning
Grok 4.20 Beta Non-Reasoning is xAI's non-reasoning model in the Grok 4.20 beta generation, optimized for speed and direct responses with low hallucination rates and strict prompt adherence. Your use is subject to xAI's Terms & Privacy Policies.
Tool UseImplicit CachingVision (Image)File InputWeb Search
import { streamText } from 'ai'
const result = streamText({ model: 'xai/grok-4.20-non-reasoning-beta', prompt: 'Why is the sky blue?'})Copy link to headingMore models by xAI
| Model |
|---|
| 500K | 1.6s | 142tps | $2/M+1 more | $6/M+1 more | Read: $0.5/M+1 more Write: — | $5/K + input costs |  | 08/12/2026 | |||||
| 500K | 1.8s | 61tps | $2/M+1 more | $6/M+1 more | Read: $0.3/M+1 more Write: — | $5/K + input costs | +3 | | 07/08/2026 | ||||
| 1M | 1.0s | 129tps | $1.25/M+1 more | $2.50/M+1 more | Read: $0.2/M+1 more Write: — | $5/K + input costs | +3 |  | 04/30/2026 | ||||
| 2M | 0.3s | 75tps | $1.25/M+1 more | $2.50/M+1 more | Read: $0.2/M+1 more Write: — | $5/K + input costs | +2 | | 03/10/2026 | ||||
| 1M | 0.4s | 126tps | $0.20/M | $0.50/M | Read:$0.05/M Write:— | — | +1 | | 11/19/2025 | ||||
| 1M | 1.7s | 129tps | $0.20/M | $0.50/M | Read:$0.05/M Write:— | — | +2 | | 11/19/2025 |