Type definitions missing for several Workers AI models released on 2025-09-24 (e.g. `@cf/pfnet/plamo-embedding-1b`)

[tukiminya]

Hey team!

It seems that several Workers AI models released on 2025-09-24 — including:

• @cf/pfnet/plamo-embedding-1b
• @cf/aisingapore/gemma-sea-lion-v4-27b-it
• @cf/ai4bharat/indictrans2-en-indic-1B

— are currently not reflected in the AiModels type definitions.

For example, trying to run:

const result = await env.AI.run("@cf/pfnet/plamo-embedding-1b", { text: "This is a story about an orange cloud."})

results in this TypeScript error:

Argument of type '"@cf/pfnet/plamo-embedding-1b"' is not assignable to parameter of type 'keyof AiModels'.

These models work fine at runtime (tested with a compatibility_date after 2025-09-24 & run with wrangler@4.42.0). like this:

{"data":[[-1.103283166885376,2.2276554107666016,7.545229434967041,-5.939915180206299,-2.7586913108825684,7.0649261474609375,-2.0057806968688965,-5.955329895019531,-2.3475096225738525,-3.66109561920166,-1.7786380052566528,1.6505837440490723,2.703437566757202,-1.8362157344818115,-4.832529544830322,-0.6350629329681396,-0.4430273473262787,2.1546638011932373,-5.8155951499938965,-3.9323267936706543,0.28225135803...

but they don’t appear in the generated typings.

Since wrangler typegen now provides the official TypeScript definitions (in place of @cloudflare/workers-types),
and internally references workerd for model metadata,
I believe this may be due to missing entries in the type definitions within this repo.

Not sure if these models are intentionally excluded (e.g. still considered experimental),
but wanted to raise it here just in case it’s an oversight.

Thanks a lot for checking! 🙏

[edmundhung]

Thanks for reporting this. I have pinged the Workers AI team and we will track it in AI-3480.