Grok 4 Fast Non-Reasoning
A fast variant of xAI's Grok 4 optimized for direct responses without chain-of-thought reasoning. Supports a 2 million token context window with text and image inputs. Offers function calling, structured output, and vision capabilities at $0.20/$0.50 per million tokens, making it one of the more affordable large-context models available.
Input
Output
Context
2000K
Max Output
131K
Parameters
—
Technical Specifications
Model TypeChat
Context Window2.0M
Max Output Tokens131K
Parameters—
Training Cutoff—
Licenseproprietary
Capabilities
Input Modalities
textimage
Output Modalities
text
Features
chain_of_thoughtfunction_callingreasoningstructured_outputvision
Resources & Links
proprietary — Proprietary - API access only
Related Tools
Data sourced from official provider APIs and documentation
Last updated: May 5, 2026
Start building with the right model.
From model selection to production, one platform, no fragmentation.