Development

A stealth model is unmasked as MIT-licensed weights served on domestic chips

development2026-08-27

Claim

Z.ai confessed to being the stealth model Ox Alpha, its biggest launch ever, served on Chinese chips and unmasked as GLM-5.3-Flash, an 18-billion-active mixture-of-experts with MIT weights at $0.15 and $0.50 pricing that trails Opus 4.8 by half a point on coding.

Reported metric: $0.15/$0.50 per Mtok

Reporting date: 2026-08-27 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to August 27, 2026 (theinnermostloop.substack.com)

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Welcome to August 27, 2026

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Evidence for

Supersedes

An investor predicts closed tokens take a fifth of volume and most of the value

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Citation formatCitation text

A stealth model is unmasked as MIT-licensed weights served on domestic chips
Innermost Loop KB — secondary record
Reporting date: 2026-08-27
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-08-27-a-stealth-model-unmasked-on-chinese-chips
Claim: Z.ai confessed to being the stealth model Ox Alpha, its biggest launch ever, served on Chinese chips and unmasked as GLM-5.3-Flash, an 18-billion-active mixture-of-experts with MIT weights at $0.15 and $0.50 pricing that trails Opus 4.8 by half a point on coding.
Attributed sources:
- Welcome to August 27, 2026 — https://theinnermostloop.substack.com/p/welcome-to-august-27-2026
This citation does not imply independent verification of linked-source claims.

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