Availability

Publicly available

Provider

xAI

Country

USA

Family

Grok

Status

Legacy

Weights

Closed

Release date

2026-03-10T00:00:00.000Z

Modalities

text (both)

Input per million tokens

1.25 USD

Output per million tokens

2.5 USD

Price effective from

2026-09-06T00:00:00.000Z

Aliases

grok-4.20, grok-4.20-0309, grok-4.20-0309-reasoning, grok-4.20-reasoning, grok-4.20-reasoning-latest

Capabilities

• reasoning · primary
• tool_use
• structured_output

Traits

• context_window1,000,000 tokens