
Elon Musk's xAI reportedly trained its coding models on Claude outputs for months before getting cut off
Quick Answer
This paper shows that Elon Musk's xAI trained its coding models using outputs from Anthropic's Claude for months, even after access was cut off.
Quick Take
Elon Musk's xAI trained its coding models using outputs from Anthropic's Claude for months, even after access was cut off. The team has since dwindled to fewer than five members, with Musk's computing resources now being rented out to Anthropic and Google.
Key Points
- xAI used Claude outputs for coding model training despite losing access.
- The pretraining team at xAI has shrunk to under five members.
- Musk's computing resources are now rented to Anthropic and Google.
- Several leads have left the xAI project amid team downsizing.
Article Excerpt
From source RSS / original summaryElon Musk's xAI used Anthropic's Claude to train its own coding models for months and kept going even after Anthropic cut off access, using private accounts and the Blackbox AI service. Meanwhile, xAI's pretraining team shrank to fewer than five people, and several leads walked out. The compute Musk bought up is now being rented to Anthropic and Google instead of powering his own models.
The article Elon Musk's xAI reportedly trained its coding models on Claude outputs for months before getting cut off appeared first on The Decoder.
Reader Mode unavailable (could not extract clean content).
Want this in your inbox every morning?
Daily brief at your local 8am — bilingual EN/中文, free.
More from The Decoder
See more →
OpenAI models now available on Amazon Web Services
OpenAI has launched GPT-5.5, GPT-5.4, and Codex on Amazon Bedrock, matching its own pricing. Currently, these models are available only in the US across commercial and government AWS regions, with usage contributing to existing AWS contracts.

