grok-code-fast-1

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

Provider xAI
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/xai/grok-code-fast-1

grok-code-fast-1

deprecated

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

Changes · 4 entries
grok-code-fast-1update3e56cf1Apr 26, 2026, 07:23 PM
capabilitiesbatchyes
reasoning_tokensyes
page_urlhttps://docs.x.ai/developers/models/grok-code-fast-1
pricinginput$0.2output$1.5cached input$0.02
grok-code-fast-1updatefa2bbbbMar 24, 2026, 05:22 AM
capabilitiesjson modeyes
statusdeprecated
taglineGrok Code Fast 1 is a speedy and economical reasoning mod...
open_weightno
tools["function_calling"]
grok-code-fast-1update2b100acMar 23, 2026, 05:30 AM
familygrok-code
model_typecode
licenseproprietary
grok-code-fast-1create7f5c66fMar 21, 2026, 05:16 AM