Hi everyone, I have “AI embeddings semantic search” enabled on my site, but whenever I try to search something, I get a 500 Internal Server Error and no results are returned. Regular search works fine when I disable that setting. Here’s what I get in the browser console: static.cloudflareinsights…

Looks like I just had to recreate the Embeddings configuration in my Discourse-AI admin settings for Gemini, and set the embedding dimensions to 3072. I’m guessing this config was created a while back, when the default was still 768. Thanks @nat for pointing me to check the logs!

Have you setup an embeddings model on the AI settings page ?

Yes, I have. I configured a Gemini embeddings model in the AI settings page, and the Run test button completes successfully with a Success! result, as shown in the screenshot. So the embeddings model appears to be configured correctly. [image] I also have this error at the top I don’t know if its…

There’s likely more information in /logs also since 500-type errors go there. Can you check? The “Success!” only confirms the API credentials and endpoint work, but does not test the semantic search process.

Error ERROR: expected 768 dimensions, not 3072 querying embeddings for model gemini: Message (15 copies reported) Error ERROR: expected 768 dimensions, not 3072 querying embeddings for model gemini Backtrace /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.5/lib/active_supp…

AI埋め込みセマンティック検索が500エラーを返す

サポートインストール

Falco (Falco) 2026 年 7 月 23 日午前 3:59 2

AI設定ページで埋め込みモデルを設定しましたか？

トピック		返信	表示
Semantic quick search gives error 500 Support ai , ai-search	1	391	2024 年 4 月 5 日
接口报错500 Support rest-api , ai	2	88	2026 年 4 月 21 日
Getting a lot of no results for semantic search Support ai , ai-search	20	625	2025 年 3 月 13 日
Frequent Error 500 after searching Site feedback ai , ai-search	6	237	2025 年 7 月 21 日
All AI functions are working ok, but AI search gives 500 error Support ai	5	187	2025 年 2 月 13 日

AI埋め込みセマンティック検索が500エラーを返す

関連トピック