Grok 4.1 Fast Non Reasoning API
About
Integrate multimodal vision capabilities using Grok 4.1 Fast Non Reasoning, designed to process both text and images seamlessly. This model delivers cost-effective pricing at $0.20/1M input and $0.50/1M output tokens, native tool calling support. Access Grok 4.1 Fast Non Reasoning via the ZenMux API with up to 64K output tokens.
Capabilities
Input Modalities
textimage
Output Modalities
text
Reasoning
No
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
2.0M
Tokens
Input Limit
2.0M
Tokens
Max Output
64K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.20
Output
$0.50
Caching (per 1M tokens)
Read
$0.05
Frequently Asked Questions
Grok 4.1 Fast Non Reasoning by ZenMux costs $0.20 per 1M input tokens and $0.50 per 1M output tokens. Cached reads cost $0.05 per 1M tokens.
Model Details
ID
x-ai/grok-4.1-fast-non-reasoning
Provider
ZenMuxFamily
Release Date
Nov 20, 2025
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
ZENMUX_API_KEY
API Base URL
https://zenmux.ai/api/v1