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Grok 4.20 Non-Reasoning

Grok 4.20 Non-Reasoning is SpaceXAI'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.

Input and output price
Prices from: Input $1.25, Output $2.50, Per 1M tokens
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import { streamText } from 'ai'
const result = streamText({
model: 'spacexai/grok-4.20-non-reasoning',
prompt: 'Why is the sky blue?'
})
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Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.

Provider
Context
Max Output
Latency
Throughput
Input
Output
Cache
Web Search
Capabilities
ZDR
No Training
Free Tier
Release Date
2M2M
$1.25/M+2 more
$2.50/M+2 more
Read$0.20/M
$5/K
+2
03/10/2026
2M2M
$2/M
$6/M
Read$0.20/M
+1
03/10/2026

Copy link to headingPlayground

Try out Grok 4.20 Non-Reasoning by SpaceXAI. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.

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Grok 4.20 Non-Reasoning

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Direct request success rate on AI Gateway and per-provider. Visit the docs for more info.

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P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.

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P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the docs for more info.

Copy link to headingMore models by SpaceXAI

Model
Context
Latency
Throughput
Input
Output
Cache
Web Search
Capabilities
Providers
ZDR
No Training
Free Tier
Release Date
500K
$2/M+1 more
$6/M+1 more
Read$0.50/M
$5/K
+1
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08/12/2026
500K
$2/M+1 more
$6/M+1 more
Read$0.30/M
$5/K
+3
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07/08/2026
1M
$1.25/M+1 more
$2.50/M+1 more
Read$0.20/M
$5/K
+3
vertex logo
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04/30/2026
2M
$1.25/M+1 more
$2.50/M+1 more
Read$0.20/M
$5/K
+3
vertex logo
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03/10/2026
1M
$0.20/M
$0.50/M
Read$0.05/M
+2
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11/19/2025
1M
$0.20/M
$0.50/M
Read$0.05/M
+1
vertex logo
11/19/2025

Copy link to headingAbout Grok 4.20 Non-Reasoning

Grok 4.20 Non-Reasoning was released March 10, 2026 as part of SpaceXAI's Grok 4.20 beta generation. It's optimized for speed and direct responses, producing answers without chain-of-thought reasoning overhead. The model features low hallucination rates and strict prompt adherence, making it suitable for production workloads that need precise, reliable output.

As a non-reasoning variant, Grok 4.20 Non-Reasoning skips intermediate reasoning traces and delivers answers directly. This reduces latency and output token cost per request, which is particularly valuable in high-throughput applications and agentic tool-calling loops where per-step speed compounds into overall workflow efficiency.

This model is currently in beta.

Copy link to headingWhat To Consider When Choosing a Provider

  • Configuration: Grok 4.20 Non-Reasoning is in beta. Expect potential changes to behavior, pricing, or availability before general availability.
  • Configuration: This variant produces direct answers. If you need the model to reason through complex problems step by step, use the Grok 4.20 Reasoning variant instead.
  • Zero Data Retention: Zero Data Retention is available for this model. It is offered on a per-provider and model basis. See the documentation for details.
  • Authentication: AI Gateway authenticates requests using an API key or OIDC token. You do not need to manage provider credentials directly.

Copy link to headingWhen to Use Grok 4.20 Non-Reasoning

Best for

  • High-throughput production APIs: Direct, precise answers at low latency serve end users best
  • Agentic tool-calling workflows: That benefit from fast decision-making with low hallucination rates
  • Classification and routing pipelines: That need reliable, prompt-adherent output for downstream processing
  • Chat and conversational interfaces: Low-hallucination, prompt-adherent responses arrive quickly without chain-of-thought overhead
  • Content generation tasks: Where strict prompt adherence matters more than deep reasoning

Consider alternatives when

  • Complex analytical tasks: Requiring multi-step reasoning. Use the Grok 4.20 Reasoning variant
  • Multi-agent orchestration: The Grok 4.20 Multi-Agent variant is purpose-built for agent collaboration
  • Stable production deployments: Beta models introduce unwanted risk. Use Grok 4.1 Fast Non-Reasoning instead
  • Maximum cost efficiency on simple tasks: Grok 3 Mini Fast offers lower per-token costs

Grok 4.20 Non-Reasoning brings Grok 4.20 generation capabilities to speed-focused workloads. It pairs direct responses with SpaceXAI's reported low hallucination rates and strict prompt adherence. Remember it's beta when you plan production deployments.

Your use is subject to SpaceXAI's Terms & Privacy Policies.