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xAI used Claude outputs for training despite access cut-off

By PulseAugur Editorial · [1 sources] ·

Elon Musk's xAI reportedly used outputs from Anthropic's Claude models to train its own coding models for several months. This continued even after Anthropic revoked access, with xAI allegedly using private accounts and the Blackbox AI service. During this period, xAI's pretraining team significantly reduced in size, with several key personnel departing. AI

IMPACT xAI's alleged use of competitor data for training raises questions about data provenance and competitive practices in model development.

RANK_REASON The article reports on alleged actions and internal team changes at xAI, rather than a direct model release or official announcement.

Read on The Decoder →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

xAI used Claude outputs for training despite access cut-off

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Commentary
The article reports on alleged actions and internal team changes at xAI, rather than a direct model release or official announcement.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
model release, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
92 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. The Decoder TIER_1 English(EN) · Matthias Bastian ·

    Elon Musk's xAI reportedly trained its coding models on Claude outputs for months before getting cut off

    <p><img alt="" class="attachment-full size-full wp-post-image" height="768" src="https://the-decoder.com/wp-content/uploads/2026/06/xai_logo_wakk.png" style="height: auto; margin-bottom: 10px;" width="1376" /></p> <p> Elon Musk's xAI used Anthropic's Claude to train its own codin…

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