Stealth (OpenRouter)

ox-alpha

An anonymized stealth-preview model on OpenRouter (stealth/ox-alpha). In our first benchmark it built a full app fast and on a fraction of the tokens - but with weaker tenant isolation, no tests, and no automatic UI refresh.

Released
2026-08

We tested it onOur test

DevShift benchmarks this model took part in.

August 23, 2026

Secure multi-tenant app build

Claude Code

Wall-clock time
1h 00m
Agent turns
177
Total tokens
14.2M
Lines of code (ts/tsx)
3,469

Built a correct app in half the time and a fifth of the tokens, with tenant isolation written in good discipline in one access layer. But the isolation is a convention, not a mechanism: connection.ts exposes query()/run() with free-form SQL, and one forgotten tenant predicate leaks silently - its own SECURITY.md admits this and points to Fable's design as the fix. We found one real leak on the auditor dashboard, zero tests, and the UI does not update without a manual reload (zero revalidate calls).

View benchmark

Who it ran against

Models benchmarked against this one on the same task.

Reported figuresNot our test

Scores published by the vendor or an outside evaluator. These are not our tests.

We haven't cited vendor figures for this model.