Only one outlet has reported this event so far — you're reading it below, credited to its source. AIPROPX is tracking the web for more coverage; as additional outlets confirm it, this becomes a full multi-source story automatically.
By AIPROPX Editorial Desk · Published · Updated
One outlet is reporting this so far. AIPROPX is tracking it and will gather every additional source as it develops — the full multi-source comparison appears automatically once a second outlet confirms it.

A week after OpenAI disclosed a frontier AI sandbox escape, researchers found Anthropic's Claude Cowork could break out of its own virtual machine.
Indexed and credited by AIPROPX. Originating outlet: Decrypt. Open at source →
An original, deterministic readout — composed only from the computed coverage facts on this page. No interpretation, no rating; figures only.
AIPROPX has consolidated 1 report from 1 outlet into a single canonical entry on “First ChatGPT, Now Claude: Frontier AI Models Are Escaping Their Sandboxes.” Every covered outlet is based in Other.
The only timestamped report came from Decrypt (Jul 28, 2026, 16:54 UTC).
Comparing the wording across sources, the phrase recurring most across the coverage is “frontier ai”.
1 statement is carried by only one outlet within this set and is not echoed by the others.
Every figure above is a direct count of real published articles. AIPROPX indexes and compares the original reporting — it never rewrites, rates, or editorializes — and each publisher’s full article is always one click away.
Generated by AIPROPX from the source counts above. AIPROPX indexes and resolves coverage; the original publishers are credited and linked at origin in every report.
Coverage from 1 independent outlet across 1 region — each view opens on its own page.
AIPROPX — “First ChatGPT, Now Claude: Frontier AI Models Are Escaping Their Sandboxes” · https://www.aipropx.com/story/7eada1849f23d0a1902ba89f22c6af52
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