Skip to main content
leaderboard
.cn
Toggle Sidebar
Search models or organizations…
⌘K
Explore
Frontier Models
Historical Trends
Local Models
Compare Models
Ranking Studio
Library
Models
Pricing
Organizations
Benchmarks
Data sources
Settings
Toggle Sidebar
leaderboard
.cn
Loading page content
Feedback
Loading page content
Back to models
Grok 4.1 Fast
Closed
Deprecated
Share
Add to comparison
Tool use · Reasoning
The production release Grok 4.3 (2026-06) is available; this preview model is now deprecated.
Overview
Pricing
Evaluations
Evaluation overview
Data coverage
1 items
1 source · updated through 2026-07-13
Evaluation highlights
All evaluations
Arena Search Rating
Agents · Arena.ai Search · Search mode
1,171.28Elo
25
/ 42
Basic information
Context (input / output)
2M / -
Release date
2025-11
Input modalities
Text
Output modalities
Text
Modes
Reasoning / Non-Reasoning
Release date
2025-11-19
Availability
xAI API
Full pricing
Input
$0.2 /1M
Output
$0.5 /1M
Related links
Official site
Version relationships
Grok 4 family
Grok 4
2025-07 · Same series · Deprecated
Grok 4 Fast
2025-09 · Same series · Deprecated
Grok 4.1
2025-11 · Same series
Grok 4.1 Fast
Current
2025-11 · Current model · Deprecated
Grok 4.20
2026-03 · Same series
Grok 4.3
2026-06 · Successor
Grok 4.5
2026-07 · Same series
Provider variants
Search