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Grok 4.20 Beta Reasoning (0309)

Grok 4.20 reasoning model with vision and tool support.

grok-4-20-beta-0309-reasoning
STABLEGet StartedView uptime
2,000,000 context
Released March 9, 2026
Starting at $2.00/M input tokens (tiered)
Starting at $6.00/M output tokens (tiered)
Streaming
Vision
Tools
Reasoning
JSON Output
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All Providers for Grok 4.20 Beta Reasoning (0309)

DigitSpace routes requests to the best providers that are able to handle your prompt size and parameters.

xAI
Context: 2M
Input
$2
/M tokens
Cache Read
$0.2
/M tokens
Output
$6
/M tokens
Tiered Pricing
IN
CACHED
OUT
≤200K tokens
$2
$0.2
$6
>200K tokens
$4
$0.4
$12
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Frequently asked questions

What is Grok 4.20 Beta Reasoning (0309)?

Grok 4.20 reasoning model with vision and tool support. You can access it through DigitSpace's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.

How much does Grok 4.20 Beta Reasoning (0309) cost?

Pricing for Grok 4.20 Beta Reasoning (0309) on DigitSpace starts at $2.00 per million input tokens and $6.00 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.

What is the context length of Grok 4.20 Beta Reasoning (0309)?

Grok 4.20 Beta Reasoning (0309) supports a context window of up to 2,000,000 tokens on its largest provider deployment.

Which providers serve Grok 4.20 Beta Reasoning (0309)?

Grok 4.20 Beta Reasoning (0309) is served by xAI through DigitSpace. Requests are automatically routed to the best available provider, with fallback when a provider has issues.

Does Grok 4.20 Beta Reasoning (0309) support tool calling and structured outputs?

Grok 4.20 Beta Reasoning (0309) supports tool (function) calling and soft JSON output, but NOT strict JSON output schema (its upstream provider does not enforce it).

When was Grok 4.20 Beta Reasoning (0309) released?

Grok 4.20 Beta Reasoning (0309) was released on March 9, 2026.