On February 19, 2025, Musk announced on X that Grok 3 would be available for free for a “short time,” but it is unclear how long that offer will last. Otherwise, users can access the model with a Premium+ subscription, which now costs $22 a month (up from $16). XAI also unveiled plans for a new subscription tier, SuperGrok, which is meant for users who want the earliest access to the most advanced capabilities (similar to ChatGPT Pro). SuperGrok’s price has not yet been made public, but it is rumored to be $30 a month or $300 a year.

Grok 3 is now available through a Premium+ subscription on X and Grok.com, which includes higher usage limits, access to DeepSearch and the ability to enable Think and Big Brain reasoning modes. The model will also be available with a SuperGrok subscription, which promises access to even more advanced features and unlimited image generation once it is rolled out.

No — Grok 3 is not open source, unlike Grok-1, the weights and architecture of which are publicly available. However, during the livestream demo, Musk said xAI will be open sourcing Grok-2 now that Grok 3 is out.