What's New?
Release Notes
Stay up to date with the latest changes to the xAI API.
November 2025
Grok 4.1 Fast is available in Enterprise API
You can now use Grok 4.1 Fast in the xAI Enterprise API. For more details, check out our blogpost.
Agent tools adapt to Grok 4.1 Fast models and tool prices dropped
- You can now use Grok 4.1 Fast models with the agent tools, check out the documentation of agent tools to get started.
- The price of agent tools drops by up to 50% to no more than $5 per 1000 successful calls, see the new prices at the pricing page.
Files API is generally available
You can now upload files and use them in chat conversations with the Files API. For more details, check out our guide on Files.
New Tools Available
- Collections Search Tool: You can now search through uploaded knowledge bases (collections) in chat conversations via the API. For more details, check out the docs.
- Remote MCP Tools: You can now use tools from remote MCP servers in chat conversations via the API. For more details, check out the docs.
- Mixing client-side and server-side tools: You can now mix client-side and server-side tools in the same chat conversation. For more details, check out the docs.
October 2025
Tools are now generally available
New agentic server-side tools including web_search, x_search and code_execution are available. For more details, check out our guide on using Tools.
September 2025
Responses API is generally available
You can now use our stateful Responses API to process requests.
August 2025
Grok Code Fast 1 is released
We have released our first Code Model to be used with code editors.
Collections API is released
You can upload files, create embeddings, and use them for inference with our Collections API.
July 2025
Grok 4 is released
You can now use Grok 4 via our API or on https://grok.com.
June 2025
Management API is released
You can manage your API keys via Management API at
https://management-api.x.ai.
May 2025
Cached prompt is now available
You can now use cached prompt to save on repeated prompts. For more info, see models.
Live Search is available on API
Live search is now available on API. Users can generate completions with queries on supported data sources.
April 2025
Grok 3 models launch on API
Our latest flagship Grok 3 models are now generally available via
the API. For more info, see models.
March 2025
Image Generation Model available on API
The image generation model is available on API. Visit Image Generations for more details on using the model.
February 2025
Audit Logs
Team admins can now view audit logs on console.x.ai.
January 2025
Docs Dark Mode Released dark mode support on docs.x.ai
Status Page Check service statuses across all xAI products at
December 2024
Replit & xAI
Replit Agents can now integrate with xAI! Start empowering your agents with Grok. Check out the announcement for more information.
Tokenizer Playground Understanding tokens can be hard. Check out
console.x.ai to get a better understanding of what counts as a token.

Structured Outputs We're excited to announce that Grok now supports structured outputs. Grok can
now format responses in a predefined, organized format rather than free-form text. 1. Specify the desired schema
Text
{
"name": "movie_response",
"schema": {
"type": "object",
"properties": {
"title": { "type": "string" },
"rating": { "type": "number" },
},
"required": [ "title", "rating" ],
"additionalProperties": false
},
"strict": true
}
- Get the desired data
Text
{
"title": "Star Wars",
"rating": 8.6
}
Start building more reliable applications. Check out the docs for more information.
Released the new grok-2-1212 and grok-2-vision-1212 models A month ago, we launched the public
beta of our enterprise API with grok-beta and grok-vision-beta. We’re adding grok-2-1212 and grok-2-vision-1212, offering better accuracy, instruction-following, and multilingual capabilities.
November 2024
LangChain & xAI Our API is now available through LangChain! - Python Docs:
http://python.langchain.com/docs/integrations/providers/xai/ - Javascript Docs: http://js.langchain.com/docs/integrations/chat/xai/
What are you going to build?
API Public Beta Released We are happy to announce the immediate availability of our API, which
gives developers programmatic access to our Grok series of foundation models. To get started, head to console.x.ai and sign up to create an account. We are excited to see what developers build using Grok.