Self-proclaimed ChatGPT co-inventor launches Jev model, claiming 20-200x speed and 40-400x cost gains
HankYeomans · x · 2026-09-18
- @CompleteSkeptic, who claims to have co-invented ChatGPT, says after two years in stealth he built a new training method (RLCD) and is releasing Jev, a frontier model optimized for decisions.
- Claims: 20-200x faster and 40-400x cheaper than existing models, with free output tokens, unlocking a new category of use cases.
- Reposter @NoahZiems says 24 hours of hands-on testing convinced him the team solved a genuinely new use-case category, mocking the release controversy.
- The claimed numbers are unverified and should be treated with skepticism.
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