Copilot is constantly summarizing conversation history and it takes 5+ mins every time. It is making copilot very slow/hard to use. This seems to have been getting worse and worse with time.

[james-belva]

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Copilot in vscode is starting to get to be impossible to use. It is constantly summarizing conversation history almost every other interaction and it is taking minutes to summarize the history. Often critical points get lost in the summarization and I have to remind the agent of details that it forgot in the summarization often triggering another conversation summarization. It is getting ridiculous and I am not getting this same nonsense in Cursor.

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[TanayBhalani]

I noticed the summarizer request timed out after 10 mins.
This could probably be one of the reasons for it to stay running.

[irvin-reyes-uvi]

the same than me the model detects the bottle neck and keep spending your money without telling u that the responses are not accurate and stayed in loop of summarising as if it is a summarize machine nor an agent coder.

[khandg]

I am experiencing the same problem recently - significantly - where i am working on a module (feature enhancement) in an existing project and conversation is very long because of planning, todos creation and research. Currently the situation is copilot is creating 2-3 files (roughly ~1500 lines of code) and then almost take 5 minutes for summarising the history. This is repeating with same frequency

Overall execution time is getting too slow and painful

model being used is Claude Sonnet 4.5

As the conversation is becoming longer, i can also notice the code quality is getting degraded and getting a lot of compilation errors and even syntax errors.

[EricJilot]

I am having the same issue

[t-fontes]

same issue, at a point it takes so much time it becomes useless.

[mempler]

ngl, this is becoming such a huge issue that i consider completely switching to cursor

[alex-macedo]

It is painful to use, and I am not seeing how to not move to AntiGravity, Cursor, or OpenCode.
It's not a helpful tool right now.

[ciacob]

Same issue here. And I remember better times, still. This started to get worse when "thinking" was introduced.

[sounkou-bioinfo]

Same issue here. And this makes the product basically useless

[ekimminau]

Im seeing summarization after almost every interaction. The Gemini models almost always then start going into a massive loop of repeating the same action 1000 times in a row. Ive seen GPT 5.x models doing the same and its happened twice on Claude 4.5. Whatever changes were made just before and just after Christmas is a massive regression.