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Grok 4.20 Reasoning

Tools
x-ai/grok-4.20-reasoning

1M context · Mar 2026 · 4 upstreams

xAI's Grok 4.20 reasoning snapshot (March 2026) featuring extended step-by-step thinking for complex problem-solving, mathematics, and scientific reasoning tasks.

Bring your own keyAnyRouter has no platform route for Grok 4.20 Reasoning. Requests use your key and bill your provider account. AnyRouter adds no fee.
context
1M
input / 1M (list)
$1.25
output / 1M (list)
$2.50
routes
4
speed, 24h
—

Upstreams

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Details

Owner
XAI
Kind
Chat
Released
Mar 2026
Context
1M
Data policy
Provider retention
Endpoint
/api/v1/chat/completions

Quick start

curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "x-ai/grok-4.20-reasoning",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'