Grok 4.20

Grok 4.20 is xAI's flagship model that offers industry-leading inference speed and reliable agentic tool calling for complex tasks. It combines extremely low hallucination rates with strict prompt adherence, delivering consistently truthful and precise responses.

Reasoning

View model card in Model Garden

Model ID grok-4.20-reasoning
Launch stage Preview
Supported inputs & outputs
  • Inputs:
    Text, Image
  • Outputs:
    Text
Capabilities
Usage types
Versions
  • grok-4.20-reasoning
    • Launch stage: Preview
    • Release date: April 14, 2026
Supported regions

Model availability

  • Global
    • global endpoint
Quota limits

global endpoint:

  • QPM: 100
  • Input TPM: 540,000
  • Output TPM: 80,000
  • Context length: 200,000

Pricing See Pricing.

Non-Reasoning

View model card in Model Garden

Model ID grok-4.20-non-reasoning
Launch stage Preview
Supported inputs & outputs
  • Inputs:
    Text, Image
  • Outputs:
    Text
Capabilities
Usage types
Versions
  • grok-4.20-non-reasoning
    • Launch stage: Preview
    • Release date: April 7, 2026
Supported regions

Model availability

  • Global
    • global endpoint
Quota limits

global endpoint:

  • QPM: 100
  • Input TPM: 540,000
  • Output TPM: 80,000
  • Context length: 200,000

Pricing See Pricing.