Grok 4Chat
xAI's Grok with strong reasoning and up-to-date knowledge.
46msp50100%up1 rail256K ctx$0.011typical$1.50 → $3.00 /MTok
Playground
Providers
| Provider | Context | Price · in / out | p50 | p95 | Uptime |
|---|---|---|---|---|---|
| ggmicloudNo trainingNo training on your data | 500K | $2.24 / $6.72/MTok | 2.6s | 3.4s | 100% |
Routing controls
routing.strategyproviders.onlyproviders.excludeproviders.ordermax_cost_usddata_policydocs →Performance
Collecting — charts appear after two days.
Pricing
- Typical
- $0.018/req
- Input
- $2.24/M tok
- Cached input
- $0.35/M tok
- Output
- $6.72/M tok
API
POST/api/v1/chat/completionsOpenAI-compatible
grok-4.5
curl https://www.ninjachat.ai/api/v1/chat/completions \
-H "Authorization: Bearer $NINJACHAT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-4.5",
"messages": [{ "role": "user", "content": "Hello!" }],
"stream": true
}'messagestemperaturemax_completion_tokenstop_pstopfrequency_penaltypresence_penaltyseedstreamuserroutingtoolstool_choice
FAQ
What is Grok 4.5?
xAI's frontier Grok 4.5 model for coding, STEM, and complex agent workflows.
How much does Grok 4.5 cost?
Grok 4.5 costs $2.24/M input tokens and $6.72/M output tokens.
What inputs and outputs does Grok 4.5 support?
Grok 4.5 accepts text and returns text.
How do I call Grok 4.5?
POST /api/v1/chat/completions with `"model": "grok-4.5"`.
What other Grok models are on NinjaChat?
Grok 4, Grok 4.6.
