Grok 4 Fast
OpenRouter
The Grok 4 Fast AI model by OpenRouter offers developers a powerful tool for advanced reasoning tasks with its large context window of 2,000,000 tokens and multimodal capabilities. With support for text input, vision, and function calling, this model is ideal for complex AI applications requiring sophisticated processing. Priced at $0.2/M input and $0.5/M output tokens, it provides excellent value for developers seeking cutting-edge AI solutions.
Key Specifications
Context Window
2.0M tokens
Max Output Tokens
30K tokens
Input Pricing
$0.20
per million tokens
Output Pricing
$0.50
per million tokens
Capabilities
- Text Generation
- Vision
- Function Calling
- Advanced Reasoning
Additional Details
- Provider
- OpenRouter
- Release Date
- August 19, 2025
- Advanced Reasoning
- Supported
- Supported Input Types
- text, image