Musk Says Grok Bot Will Route Tasks to Rival Models, Including Claude
Elon Musk posted that xAI's Grok Bot will use the 'best back end model for any given task,' naming Anthropic's Claude Opus 5.5 (as relayed), Midjourney and Suno — 'Whatever is most likely to give you the best outcome,' per City AM. The post describes a direction, not a documented launch or partnership; neither xAI nor Anthropic has published commercial terms, and the post did not specify routing, pricing, user controls or data handling.
A lab borrowing tens of billions for its own training compute is telling customers its flagship agent will sometimes run on a competitor's model. That is a bet on owning the agent interface more than every model behind it — if the post becomes product.
On October 7, Elon Musk posted on X that Grok Bot, xAI's agent product, will use the "best back end model for any given task," naming Anthropic's Claude Opus 5.5 (as relayed by RuntimeWire and others; Musk named "Claude Opus"), image generator Midjourney and music generator Suno: "Whatever is most likely to give you the best outcome," he wrote, per City AM.
What the post does not say
The post gave no details on which tasks go to which provider, when routing starts, pricing, whether users can see or choose the model, or what data is sent to outside APIs, RuntimeWire notes. Neither xAI nor Anthropic has published commercial terms. This is a direction described in a social post, not a documented launch, deal or partnership.
xAI launched Grok Bot in beta on August 11 as persistent agents that run on cloud computers and act inside users' connected apps. City AM adds that the move follows a Grok service disruption on October 6 and cites Capital on Tap data showing Anthropic took as much as half of UK small businesses' spending with major AI providers in September — City AM's own data story, attributed as such.
Why the agent layer matters
If Grok Bot really routes to Claude for some work, Anthropic revenue lands inside a Musk product while xAI keeps the agent surface and credentials boundary. Data-handling questions for an agent that holds customer credentials remain open. Context on the same capital and competitive thread: xAI-linked SpaceX $40B debt raise and Meta/Microsoft cutting internal Claude use.
Limits
- Single origin: Musk's X post, relayed by City AM and RuntimeWire (X not directly readable here). Quote via City AM.
- Direction, not a launch, deal or partnership — no Anthropic terms confirmed.
- "Claude Opus 5.5" naming follows relays; Musk said "Claude Opus."
- Capital on Tap UK-spend stat is City AM's cited data story.
Sources
- City AM: Musk turns to rival Anthropic to power Grok (October 7, 2026)
- RuntimeWire: SpaceX says Grok Bot will use rival AI models for different tasks (October 7, 2026)
- Times of AI: SpaceX $40B debt for Nvidia chips via Apollo (October 7, 2026)
- Times of AI: Meta and Microsoft cut internal Claude use (October 5, 2026)