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SpaceXAI

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Grok 4.6 is live on Amazon Bedrock

Today, we're adding 21 new flagship voices to Grok via API.

Grok models are now available on Databricks Agent Bricks. Bring SpaceXAI's latest models to your enterprise data to power capable AI agents.

We are now SpaceXAI.

Grok 4 is now free for all users worldwide! Simply use Auto mode, and Grok will route complex queries to Grok 4. Prefer control? Choose "Expert" anytime to always use Grok 4. For a limited time, we are rolling out generous usage limits so you can explore Grok 4’s full potential.

Effective immediately, Kalshi and xAI are partnering to bring Grok to prediction markets. Two of the fastest growing companies in America are now on the same team. xAI 🤝 Kalshi

Grok's Text to Speech API is now available. Start building with natural voices and expressive controls to bring your apps to life.

We’d love your feedback on Imagine 1.0. Share your best creations, tag xAI, and let us know what you think - the team reads every reply. Try it now:

London Grokathon - Jan 17th 🚀 Join us for 12hr non-stop coding to build applications and show what's possible! Apply by 1/4:

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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.

Voice Cloning is now live via the xAI API! Create a custom voice in less than 2 minutes or select from our library of 80+ voices across 28 languages to personalize your voice agents, audiobooks, video game characters, and more.

Grok Imagine Video 1.5 is here Our new image-to-video model with sharper realism, better physics and faster generations 🧵

Grok Build is now available in Beta for all SuperGrok and X Premium+ users. Use Plan Mode, create images and videos with Imagine, and build automations or orchestrators with the CLI. Visit to get started.

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

Your customer support needs a voice agent built for the real world. Grok Voice Think Fast 1.0 handles complex workflows with speed and accuracy, even in hard-to-hear environments. From multi-step troubleshooting to high-volume tool calls, it keeps up.

1st Place: Nova taught Grok to reverse-engineer binaries into clean C. Started with 262KB GameBoy ROMs, ended up rebuilding a 1995 car’s ECU runtime. Theo C Supratik Panuganti Henry Zhang

See how Heavy Pulp made a trailer worthy of the big screen with this powerful new model:

Since xAI was formed just 30 months ago, the small and talented team has made remarkable progress. The future has never looked more exciting!

Introducing Grok Imagine 1.0, our biggest leap yet. 1.0 unlocks 10-second videos, 720p resolution, and dramatically better audio. Imagine has generated 1.245 billion videos in the last 30 days alone. Try it now:

Halftime: Dynamically weaves AI-generated ads into the scenes you’re watching, so breaks feel like part of the story instead of interruptions. Yuvraj Dwivedi Pravin Lohani

This is it: The world’s smartest AI, Grok 3, now available for free (until our servers melt). Try Grok 3 now: X Premium+ and SuperGrok users will have increased access to Grok 3, in addition to early access to advanced features like Voice Mode

3rd Place: ThinkVoice lets you speak without moving your mouth by combining Grok Voice with brain-sensing technology. It understands the conversation, suggests what you might want to say next, and lets you select a response using subtle motor movements. Dan isaac yang Elith

2nd Place: Signal embeds followers’ bios, posts, and engagement into a living graph and A/B tests different launches using simulated populations of your following, so every post hits maximum engagement. Adi Jason Lai Sam Chen Jeffrey Zhou

Introducing Quality mode on Grok Imagine – powered by our most advanced image generation model. Quality mode gives you enhanced details, stronger text rendering, and higher levels of creative control. Now available on web and mobile. Try it at

Understanding requires imagining. Grok Imagine lets you bring what’s in your brain to life, and now it’s available via the world’s fastest, and most powerful video API: Try it out and let your Imagination run wild.

Introducing Imagine v0.9, our new video generation model with massive upgrades from v0.1 in visual quality, motion, audio generation, and more. Now available for free on all our products:

We just unveiled Grok 4, the world’s smartest artificial intelligence. 🧵 Grok 4 outperforms all other models on the ARC-AGI benchmark, scoring 15.9% - nearly double that of the next best model - and establishing itself as the most intelligent AI to date.

xAI partners with Polymarket to blend market predictions with X data and Grok’s analysis. Hardcore truth engine - see what shapes the world. This is just the start of our partnership with Polymarket. More to come. 🚀