Grok Codefast 1 is xAI's language model, starting at $0.200 / 1M input and $1.50 / 1M output. A fast, cost-efficient coding-focused LLM from xAI optimized for agentic coding and developer workflows.
Specifications
Canonical IDxai-codefast-1
TypeLanguage
StatusActive
CreatorxAIxAI
Providers
Input ModalitiesText
Output ModalitiesText

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

ProviderStandard
Input
$ / 1M
Output
$ / 1M
Azure AI Foundry logo
Azure AI Foundry
xai:codefast1
$0.200$1.50
View Azure AI Foundry

Cost Calculator

Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Grok 4.31.0M$1.25$2.50Available
Grok 4.202.0M$1.25$2.50Available
Grok 4.20 Multi-Agent2.0M$1.25$2.50Available
Grok 4.20 Multi-Agent Beta2.0M$1.25$2.50Available
Grok 4.20 Non-Reasoning2.0M$1.25$2.50Available
Grok 4.20 Reasoning2.0M$1.25$2.50Available
Grok 4.1 Fast2.0M$1.25$2.50Deprecated
Grok 4 Fast131K$0.200$0.500Deprecated
Grok 4 Fast Non-Reasoning2.0M$0.200$0.500Available
Grok 4256K$1.25$2.50Deprecated
Grok Codefast 1$0.200$1.50Current

Model IDs