All Models

Grok-4.1-Fast-Reasoning

grok Reasoning Tool Calling Attachments Structured Output
Providers 8
Released Jun 27, 2025
Input Modalities text, image
Output Modalities text
Tarsk Use coding

Benchmarks

38.6
Intelligence Index
30.9
Coding Index
89.3
Math Index

Available Providers (8)

Provider Model ID Input Cost Output Cost Context Max Output Docs
Jiekou.AI grok-4-1-fast-reasoning $0.18/MTok $0.45/MTok 2M 2M
302.AI grok-4-1-fast-reasoning $0.20/MTok $0.50/MTok 2M 30K
Firmware grok-code-fast-1 $0.20/MTok $1.50/MTok 256K 128K
Firmware grok-4-1-fast-reasoning $0.20/MTok $0.50/MTok 2M 128K
Vercel AI Gateway xai/grok-4.1-fast-reasoning $0.20/MTok $0.50/MTok 2M 30K
NanoGPT x-ai/grok-4.1-fast-reasoning $0.20/MTok $0.50/MTok 2M 131.1K
Azure grok-4-1-fast-reasoning $0.20/MTok $0.50/MTok 128K 8.2K
Poe xai/grok-4.1-fast-reasoning —/MTok —/MTok 2M 30K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output