I investigated a bit and wllama is indeed broken on Nightly, we can see the error in Link Preview generate showing up in telemetry. In [this query](https://sql.telemetry.mozilla.org/queries/122499/source?p_cutoff_date=2026-06-28&p_day=2026-07-02) we can see that the error I reported is not seen before June 28th, and 9 of them after that date.
Bug 2052861 Comment 1 Edit History
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I investigated a bit and wllama is indeed broken on Nightly, we can see the error in Link Preview generate showing up in telemetry. In [this query](https://sql.telemetry.mozilla.org/queries/122499/source?p_cutoff_date=2026-06-28&p_day=2026-07-02) we can see that the error I reported is not seen before June 28th, and 9 of them after that date. We have 0 testing exercising a real wllama wasm blob and and actual inference, the regression is not catchable in CI