Summary
On October 16, 2026, Cloudflare AI Search added keyword search support for Japanese, Chinese, and Korean by matching CJK queries with a trigram tokenizer, including full natural-language questions. Previously, queries without spaces usually returned no keyword results; users with CJK content set keyword_tokenizer to trigram, which triggers a full reindex.
What changed
AI Search's trigram tokenizer now matches CJK (Japanese, Chinese, Korean) queries, including space-free natural-language questions that previously returned no keyword results. Enabling it requires setting keyword_tokenizer to trigram, which triggers a full reindex.
Why it matters
Keyword search that works on CJK text removes a hard gap for teams building retrieval and RAG over non-space-delimited languages on Cloudflare, making AI Search viable for multilingual and East Asian-market applications without bolting on a separate search engine.
Evidence excerpt
The trigram tokenizer now matches CJK queries, including full natural-language questions. Previously, queries without spaces usually returned no keyword results. Users with CJK content should set keyword_tokenizer to trigram, which triggers a full reindex.