grok-code-fast-1 Preview

codedeprecatedproprietary

Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding.

Context
256K
Max output
10K
Input price
$0.2/1M tokens
Output price
$1.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDgrok-code-fast-1
Provider Azure AI Foundry
Creator xAI
Familygrok-code
Licenseproprietary
Statusdeprecated
Typecode
Input modalitiestext
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window256K tokens
Max input—
Max output10K tokens
Reasoning tokensYes
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.2
Output
$1.5
Cache write
—
Cache read
$0.02
Batch in
—
Batch out
—

API

GET/v1/models/azure/grok-code-fast-1

grok-code-fast-1 Preview

deprecated
grok-code-fast-1

Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding.

Changes · 3 entries
grok-code-fast-1update6231fb5Apr 22, 2026, 02:50 AM
namegrok-code-fast-1→grok-code-fast-1 Preview
grok-code-fast-1update2b100acMar 23, 2026, 05:30 AM
model_typecode
tools["function_calling"]
grok-code-fast-1create7f5c66fMar 21, 2026, 05:16 AM