SpaceXAI

In order to understand the universe, you must explore the universe → x.ai/careers

Grok 4.5 at #2 on Proximal's FrontierSWE benchmark across implementation and performance, and #1 on research abilities

Reach out to our engineers on X or report issues through our bug bounty program: hackerone.com/x?type=team.

In response to user questions about privacy: Since launch, Grok Build has fully respected zero data retention (ZDR). All users have always had the ability to disable data upload in the CLI. When data upload was disabled, this choice was respected. In the early beta, data retention was enabled by default for non-ZDR users. Based on your feedback, we changed this. We are now going further to protect privacy. With all retained data deleted, retention default off, and an open-source harness, we are offering complete user privacy. You can also run Grok Build fully open-sourced and local-first with your own inference. We disabled default retention for all Grok Build users starting on July 12th. Additionally, we are deleting all coding data that was previously retained, ensuring every user’s preferences are respected. With these steps, Grok Build goes beyond other major coding products to protect user privacy.

We've open-sourced Grok Build and have reset usage limits for all users. Open sourcing Grok Build allows anyone to support making a reliable and robust harness. Check out our code, including the Git repo for the Grok Build CLI. x.ai/open-source

@FarhanWritess If you run /privacy and change the setting, all previously synced data is deleted.

@SpaceXAI Good to know, thanks for clarifying. Quick question if I run /privacy to enable ZDR, does that wipe everything retroactively, or only stop new data going forward? Want to make sure our existing synced data actually gets deleted, not just frozen.

We care deeply about your privacy and respect customer choice. For teams using zero data retention, no trace and code data is ever retained. All API key use of Grok Build also respects ZDR. If ZDR is disabled, the /privacy command is available in the CLI to disable data retention, which also deletes previously synced data. Run the /privacy command to view or change your settings at any time.

RT @grok: Grok 4.5 is now available to try on the free tier. Use Grok Build with any X or SuperGrok account. We’re excited to hear your fe…

Try Grok 4.5 today in the SpaceXAI console, Grok Build, and Cursor. We've reset all limits so you can start for free x.ai/cli Note: Grok 4.5 isn't available in the EU yet. EU availability is expected later this month.

Grok 4.5 is efficient and fast. It uses half as many tokens per task, delivers higher tokens per second, and costs less than half as much as comparable models, at $2/M input and $6/M output tokens.

Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency. x.ai/news/grok-4-5

Today, we're adding 21 new flagship voices to Grok via API. x.ai/news/new-flags…

We are now @SpaceXAI.

Grok Build is now installed in Railway sandboxes

Every account includes a free phone number to get started. We're launching today in beta: Try it now → console.x.ai/voice/agents Read more → x.ai/news/grok-voic…

Most voice stacks stitch together three APIs: speech-to-text, a language model, and text-to-speech—often with each stage hosted by a different provider. Every hop adds cost, latency, and new failure modes. Voice Agent Builder is one interface built for Grok Voice, tightly coupled to the model.

Introducing Voice Agent Builder: a no-code platform to create human-like voice agents with Grok Voice. Available today at $0.05 / min. x.ai/voice

State of the art voice APIs from SpaceXAI, now in the Vercel AI Gateway

You can now use your SuperGrok and X subscriptions inside T3code