Where does the bug appear (feature/product)? Cursor SDK Describe the Bug Cursor ACP actually uses ONLY Kimi-k2.5 model regardless of the model selected in the panel, when working in JetBrains IDEs. Steps to Reproduce -Open Cursor ACP in AI assistant chat window of JetBrains IDEs; -Select any mode…

Hey, thanks for the report. This looks like a region limitation, not an ACP routing bug. In China, OpenAI and Anthropic models aren’t available, and kimi-k2.5 is the only frontier model we can serve to users in CN. So no matter what you pick in the model picker, the request ends up on kimi-k2.5, whi…

Hey, thanks for the report. One important detail: you’re in India, so your case is different from the first post in this thread. That one is China, where only kimi-k2.5 is available due to regional restrictions. Your case is different. This is a known issue where the ACP picker in JetBrains doesn’t …

we can have this convo over there, as the underlaying cause of current issue is different in current thread.

Model selection not working in Jetbrains AI Assistant Cursor ACP

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udm June 8, 2026, 2:05pm 6

I’m in India and trying to choose GPT-5.4-mini

It always fallbacks to composer-2.5-fast.

Same happening with Claude model too

EDIT: Refer this issue Model selection in Phpstorm via ACP is not working - #6 by mohitjain

Topic		Replies	Views
Model selection in Phpstorm via ACP is not working Bug Reports composer , acp	6	211	June 11, 2026
Opus 4.6 fast mode not accessible via ACP Bug Reports cli , anthropic , acp	5	221	May 4, 2026
HelpPlease check whether my desktop client is receiving an incorrect model catalog or feature flag configuration Bug Reports openai , anthropic	1	69	June 13, 2026
ACP: composer-2.5 model is always used when Auto is selected Bug Reports auto-mode , cli , composer , acp	2	109	June 9, 2026
My model disappear Bug Reports openai , anthropic	1	313	March 14, 2026

Model selection not working in Jetbrains AI Assistant Cursor ACP

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