Using Grok 4 on OpenRouter

Quick Start

1. 1
   Create an account at OpenRouter and generate an API key.
2. 2
   Use the OpenRouter SDK or REST API to call x-ai/grok-4 — see the documentation for request format.
3. 3
   You'll be billed $3.00/1M input, $15.00/1M output tokens. See full pricing.

Code Examples

About OpenRouter

OpenRouter provides a unified interface for Large Language Models with better pricing, improved uptime, and no subscription requirements. Route across providers for cost optimization and reliability.

OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.

Pricing on OpenRouter

Capabilities

About Grok 4

Original Grok 4 API model (grok-4-0709) with 256K context, reasoning, text and image input, function calling, structured outputs, live browsing, and code execution support. xAI lists May 15, 2026 as the API retirement date for this model; new integrations should use Grok 4.3.