SpaceX Introduces 'Grok 4.6', Ensuring that Its AI Model Matches GPT-5.6 Sol, But At a Significantly Lower Price

IBL News | New York

Elon Musk’s SpaceX introduced Grok 4.6 yesterday, ensuring that its AI model matched GPT-5.6 Sol on the Artificial Analysis Intelligence Index, a composite score of nine benchmarks, but performing at a significantly lower price.

This agent model, according to the company, has a particular focus on long-running agents: “It stays with complex tasks across many steps, whether researching a topic, analyzing information, working across a codebase, or turning an idea into a polished application or work artifact.”

Grok 4.6 was available yesterday in Cursor — recently acquired by SpaceX — and Grok Build. In addition, it’s available via the SpaceX AI API.

Its base API price remains $2 per million input tokens and $6 per million output tokens, the same rates SpaceXAI set for Grok 4.5.

The model documentation lists a 500,000-token context window, text and image inputs, structured outputs, reasoning, and function calling.

SpaceX acquired Cursor’s parent, Anysphere, for approximately $60 billion in stock.

Grok 4.7 is significantly better than 4.6 and should be ready in 3 to 4 weeks.

Initial training is complete and now we’re adding a massive amount of SpaceX company data in supplemental training. This will be something special.

— Elon Musk (@elonmusk) August 12, 2026

great model.

can you drop a usage reset as well? 🙏

spent all usage before grok 4.6 dropped on making a movie scene in grok imagine 2.0https://t.co/9vbKllAdLp

— Marko Njegomir (@njmarko) August 12, 2026