Grok 4.20 (Reasoning)

Reasoning Grok for document-heavy analysis and long-horizon tool use

xai/grok-4.20-0309-reasoning
Organization
xAI
Family
grok
Providers
10
Context
1,000,000
Output limit
30,000
Knowledge
—
Release
2026-03-09
Updated
2026-03-09
Weights
Closed
Input
text, image, pdf
Output
text
Capabilities
Tools, Reasoning, Structured, Temperature

Providers

Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.

11 offers · USD per million tokens
ProviderModel IDContextOutputInput / output · 1MReasoningToolsStructuredDetails
Cloudflare AI Gateway
xai/grok-4.20-0309-reasoning
2,000,00030,000$2.00 / $6.00YesYesYes
View
DevPass (LLM Gateway)
grok-4-20-reasoning
2,000,00030,000$1.25 / $2.50YesYesYes
View
DevPass (LLM Gateway)
grok-4-20-beta-0309-reasoning
2,000,00030,000$2.00 / $6.00YesYesYes
View
Eden AI
xai/grok-4.20-0309-reasoning
1,000,00030,000$1.25 / $2.50YesYesYes
View
Impossibl
xai/grok-4.20-0309-reasoning
1,000,00030,000$1.25 / $2.50YesYesYes
View
Merge Gateway
xai/grok-4.20-0309-reasoning
1,000,0001,000,000$1.25 / $2.50YesYesYes
View
OCI Generative AI
xai.grok-4.20-reasoning
1,000,00030,000$1.25 / $2.50YesYesYes
View
Ofox
x-ai/grok-4.20
2,000,000128,000$4.00 / $12.00YesYesYes
View
Tempr Gateway
xai/grok-4.20-0309-reasoning
1,000,00030,000$1.25 / $2.50YesYesYes
View
Vertex
xai/grok-4.20-reasoning
2,000,00030,000$1.25 / $2.50YesYesYes
View
ZenMux
x-ai/grok-4.2-fast
2,000,00030,000$2.00 / $6.00NoYesYes
View

Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.

Pricing

Compare token rates and cache charges across available routes and hosting configurations.

USD per million tokens
Input from$1.25Per 1M input tokens
Output from$2.50Per 1M output tokens
Available offers11Across 10 providers

Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.

Frequently asked questions

Answers based on the model metadata and serving offers currently in the catalog.

How much does Grok 4.20 (Reasoning) cost?

Listed rates start at $1.25 per million input tokens and $2.50 per million output tokens. Prices vary by provider and configuration; see Pricing for details.

Which providers offer Grok 4.20 (Reasoning)?

There are 11 cataloged offers across 10 providers. Compare model IDs, prices and limits in Providers.

What is the context window?

The cataloged model context is 1,000,000 tokens. Each serving endpoint may apply a different limit.

Does it support tools and structured output?

Tool calling: Yes. Structured output: Yes. Support can vary by endpoint.

Catalog history · 2 recorded revisions

Metadata observations since this model was first cataloged. These are not model release versions.

  • · c785a7c472e0
  • · e3d9a7ad161a