grok-4-fast-reasoning
131K contextFree inputFree output
xai/grok-4-fast-reasoningQuick Start
curl https://router.tangle.tools/v1/chat/completions \
-H "Authorization: Bearer $TANGLE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "xai/grok-4-fast-reasoning",
"messages": [{"role": "user", "content": "Hello!"}]
}'Modalities
Input: TextInput: ImageOutput: Text