grok-4.20 | AI Sonar

AvailablexaiChat

grok-4.20

Pricing

Official price	Catalog price	Discount
Input $1.25 / Output $2.50	Input $1.25 / Output $2.50	-

Capabilities

JSON ModePrompt CacheReasoningTool UseVision

Context: 1M
Max output: 131K

Supported operations

Aliases

grok-4.20-reasoning-latestgrok-4.20-reasoninggrok-4.20-0309x-ai/grok-4.20grok-4-20grok-4.20-0309-reasoninggrok-4.20-betagrok-4.20-beta-latest

API Base

Example request

https://api.aisonar.dev

curl https://api.aisonar.dev/v1/chat/completions \
  -H "Authorization: Bearer $AI_SONAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-4.20",
    "messages": [{"role":"user","content":"Summarize this release note"}]
  }'