[image] Why is my AI forum helper struggling to answer questions? AI consolidates a very long conversation Oh, I see now, thanks for the explanation, that’s what I was missing. Btw, I know often there’s reranking in more advances RAG. Is there something like reranking in how Discourse handles…

reranking is a work-in-progress. @Falco / @Roman implemented a basic reranker in discourse: plugins/discourse-ai/config/settings.yml f9424a549 ai_hugging_face_tei_reranker_endpoint: default: "" ai_hugging_face_tei_reranker_endpoint_srv: …

Awesome! So currently this is off by default, and can’t be configured easily on a hosted (pro) plan?

not sure, lets wait for @Falco to answer.

Hi @Falco is there any way to enable the reranker for testing or maybe a timeline?

We just deployed a big improvement to the underlying tech that powers semantic search in Discourse in DEV: Re-introduce PG Vector 0.8.0 upgrade by romanrizzi · Pull Request #35233 · discourse/discourse · GitHub . Can you retry your use case now, it’s already deployed to your site. My expectation is …

Thanks Falco! Will this work only for the semantic search over Discourse topics, or also for RAG documents uploaded to a persona? From my own experience, the AI works quite well with forum topics (i.e. on ask.discourse), but not that well with uploaded docs to a persona (or I haven’t found the best…

Hey @tpetrov , did the results improve with the new embeddings model?

Hey Falco, I’m sorry, I haven’t had time to test extensively, so cannot really say. I guess there’s no way to sitch between the two to compare?

[image] tpetrov: I guess there’s no way to sitch between the two to compare? Not now, the old and new models were available for a couple of months, but we recently retired the old ones in our hosting.

Exploring Reranking Options for Discourse AI

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Falco (Falco) October 16, 2025, 4:16pm 12

It affects all uses of embeddings in Discourse, including Related Topics, RAG, Search, Composer category and tag suggestions, etc.

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Exploring Reranking Options for Discourse AI

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