Grok 4 API
About
Integrate multimodal vision capabilities using Grok 4, designed to process both text and images seamlessly. This model delivers cost-effective pricing at $3.00/1M input and $15.00/1M output tokens, native tool calling support. Access Grok 4 via the LLM Gateway API with up to 256K output tokens.
Capabilities
Input Modalities
textimage
Output Modalities
text
Reasoning
No
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
256K
Tokens
Input Limit
256K
Tokens
Max Output
256K
Tokens
Pricing
Standard (per 1M tokens)
Input
$3.00
Output
$15.00
Frequently Asked Questions
Grok 4 by LLM Gateway costs $3.00 per 1M input tokens and $15.00 per 1M output tokens.
Model Details
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
LLMGATEWAY_API_KEY
API Base URL
https://api.llmgateway.io/v1