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xAI: Grok 4
x-ai/grok-4Jul 9, 2025256K context$3.00/M in · $15.00/M outReasoningDeprecates 2026-05-15
Upcoming deprecation
This model will be deprecated on 2026-05-15. Please plan to migrate to an alternative model before this date.
Description
Grok 4 is xAI's latest reasoning model with a 256k context window. It supports parallel tool calling, structured outputs, and both image and text inputs. Note that reasoning is not exposed, reasoning cannot be disabled, and the reasoning effort cannot be specified. Pricing increases once the total tokens in a given request is greater than 128k tokens. See more details on the xAI docs
Specifications
Provider
x-ai
Context Length
256K
Max Output
—
Modality
Inimagetext
Outtext
Pricing
| Type | ≤128K | >128K |
|---|---|---|
| Input | $3.00 | $6.00 |
| Output | $15.00 | $30.00 |
| Cache Read | $0.75 | $0.75 |
| Web Search | $0.0050 / call |
Quick Start
curl https://api.ominigate.ai/v1/chat/completions \
-H "Authorization: Bearer sk-omg-your-api-key" \
-H "Content-Type: application/json" \
-d '{
"model": "x-ai/grok-4",
"messages": [{"role": "user", "content": "Hello!"}]
}'