Grok 4 Fast
ZenMux
Experience the power of the Grok 4 Fast AI model by ZenMux, offering a massive context window of 2,000,000 tokens and advanced capabilities in text input, vision, function calling, and reasoning. With a training data cutoff of 2025-01-01, this model is perfect for developers looking to leverage cutting-edge AI technology for complex tasks. Pricing is transparent at $0.2 per million input tokens and $0.5 per million output tokens.
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
- File Attachments
Additional Details
- Provider
- ZenMux
- Release Date
- September 19, 2025
- Advanced Reasoning
- Supported
- Supported Input Types
- text, image