Grok 4 Fast (Non-Reasoning)
xAI
The Grok 4 Fast (Non-Reasoning) AI model by xAI offers developers a powerful tool with a 2,000,000 token context window and the ability to process text, vision, and function calling tasks. With a training data cutoff in 2025 and pricing at $0.2/M input and $0.5/M output tokens, this model is ideal for complex, data-intensive projects requiring advanced AI capabilities.
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
- File Attachments
Additional Details
- Provider
- xAI
- Release Date
- September 19, 2025
- Supported Input Types
- text, image