How to Install / Upgrade: SpaceXAI releases Grok 4.6, claiming GPT-5.6 Sol and Claude Fable 5-level…

What happened

SpaceXAI has released Grok 4.6 and says its intelligence is comparable to OpenAI GPT-5.6 Sol and Anthropic Claude Fable 5. 9to5Mac places the launch in a broader repair of Grok’s reputation after the Cursor acquisition and the Grok Bot agent release. The company is treating the model lineup more seriously, and this release is the latest step in that effort.

The technical detail

To install or upgrade, move the work you want on this generation onto Grok 4.6 from SpaceXAI instead of leaving it on an earlier Grok model. If you already use SpaceXAI after the Cursor acquisition or the Grok Bot agent release, select Grok 4.6 in that same product surface rather than mixing this model with the separate Grok Bot agent. The available facts do not name an installer, package, or upgrade command, so complete the change only where SpaceXAI exposes Grok 4.6 and confirm that name before you cut over.

Market and competitive context

The intelligence comparison is SpaceXAI’s claim as reported by 9to5Mac, not an independent score, so do not treat GPT-5.6 Sol or Claude Fable 5 as proof that your setup is correct. A common mix-up is treating yesterday’s Grok Bot agent as this Grok 4.6 model release. Verify the cutover by checking that the active model is labeled Grok 4.6 and that the vendor is SpaceXAI.