Grok 4.20 Fast
The non-reasoning Grok 4.20 endpoint for fast million-token multimodal and agentic workloads.
- Modalities
- IntextimageOuttext
- Input / output
- $1.25 / $2.50USD per 1M tokens
- Context
- 1M
- Providers
- Live
Playground
Preparing playground
API
POST/api/v1/chat/completionsOpenAI-compatible
grok-4.20-fast
curl https://www.ninjachat.ai/api/v1/chat/completions \
-H "Authorization: Bearer $NINJACHAT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-4.20-fast",
"messages": [{ "role": "user", "content": "Hello!" }],
"stream": true
}'messagestemperaturemax_completion_tokenstop_pstopfrequency_penaltypresence_penaltyseedstreamuserroutingtoolstool_choiceresponse_formatimage_url content parts
Pricing
- Input
- $1.25/M tokens
- Cached input
- $0.20/M tokens
- Output
- $2.50/M tokens
Published USD rates. Actual cost depends on input, output, cache usage and request options.
