What's New?

Release Notes

Stay up to date with the latest changes to the xAI API.

November 2025

Nov 19

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.

Nov 7

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

Oct 15

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

Sep 15

Responses API is generally available

You can now use our stateful Responses API to process requests.

August 2025

Aug 26

Grok Code Fast 1 is released

We have released our first Code Model to be used with code editors.

Aug 15

Collections API is released

You can upload files, create embeddings, and use them for inference with our Collections API.

July 2025

Jul 9

Grok 4 is released

You can now use Grok 4 via our API or on https://grok.com.

June 2025

Jun 6

Management API is released

You can manage your API keys via Management API at https://management-api.x.ai.

May 2025

May 29

Cached prompt is now available

You can now use cached prompt to save on repeated prompts. For more info, see models.

May 20

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

Apr 3

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

Mar 19

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

Feb 7

Audit Logs

Team admins can now view audit logs on console.x.ai.

December 2024

Dec 31

Replit & xAI

Replit Agents can now integrate with xAI! Start empowering your agents with Grok. Check out the announcement for more information.

Dec 30

Tokenizer Playground Understanding tokens can be hard. Check out

console.x.ai to get a better understanding of what counts as a token.

Dec 17

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

{
    "name": "movie_response",
    "schema": {
        "type": "object",
        "properties": {
            "title": { "type": "string" },
            "rating": { "type": "number" },
        },
        "required": [ "title", "rating" ],
        "additionalProperties": false
    },
    "strict": true
}

Get the desired data

{
  "title": "Star Wars",
  "rating": 8.6
}

Start building more reliable applications. Check out the docs for more information.

Dec 14

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