---
description: Keyword search with the trigram tokenizer now matches Japanese, Chinese, and Korean queries, including full natural-language questions.
title: AI Search keyword search supports Japanese, Chinese, and Korean queries
image: https://developers.cloudflare.com/changelog/post/2026-10-16-cjk-keyword-search/og.png?v=ee8463ab788a926a
---

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October 16, 2026

## AI Search keyword search supports Japanese, Chinese, and Korean queries

[AI Search](https://developers.cloudflare.com/ai-search/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-10-16-cjk-keyword-search/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

[AI Search](https://developers.cloudflare.com/ai-search/) keyword search with the `trigram` tokenizer now matches Japanese, Chinese, and Korean queries, including full natural-language questions such as `経費精算の締め日はいつですか？`. Previously, a query without spaces was treated as a single exact phrase and usually returned no keyword results.

The `porter` tokenizer does not work well for these languages. If your content is in Japanese, Chinese, or Korean, set `keyword_tokenizer` to `trigram`. Changing the tokenizer triggers a full reindex.

Refer to [Keyword search](https://developers.cloudflare.com/ai-search/configuration/indexing/keyword-search/#keyword-tokenizer) for tokenizer details.

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