THE DOSSIER · ALL ENTITIES

Claude Opus 4.5

The permanent record for Claude Opus 4.5. Every claim we have put on the ledger, checked against independent sources, with the verdict and the date. On the record so far, Claude Opus 4.5 is on the record, but the sample is too small to call a pattern. This page compounds: each new verdict updates the rate.

40BS RATE / 100

of the 1 claim we actually checked1

0 VERIFIED 1 TRUE, BUT 0 BS

MOST RECENT ON THE RECORDThe '59.4% of SWE-bench is broken' stat comes from an audit that only examined the problems OpenAI's own model kept failing.TRUE, BUT 14 Aug 2026 · 3 SOURCES

THE FULL RECORD · 1 CLAIMS, NEWEST FIRST

TRUE, BUTThe '59.4% of SWE-bench is broken' stat comes from an audit that only examined the problems OpenAI's own model kept failing.SAFETY · 14 Aug 2026 · 3 SOURCES

SEARCH EVERY CLAUDE OPUS 4.5 CLAIM IN THE LEDGER →
← ALL ENTITY DOSSIERS