Finally fix ChatGPT getting slower with long conversations
Long ChatGPT threads slow to a crawl — typing lags, scrolling stutters, the tab hogs memory. Smart Thread Trimming in AI Workspace trims older messages out of the page so ChatGPT stays fast. Nothing is deleted, and it's reversible in one click.
It's not your internet — it's your browser
Every message in a ChatGPT conversation stays rendered on the page. The longer the thread, the more your browser has to hold in memory at once — until a single conversation is using hundreds of megabytes and the whole tab grinds.
That's why your most valuable, longest-running conversations are exactly the ones that become painful to use. The fix isn't a faster computer — it's rendering less at a time.
Keep long conversations fast — without losing a word
Smart Thread Trimming gives you back the speed of a fresh chat, while keeping your full conversation intact and one click away.
Trims older messages from the page
Smart Thread Trimming removes older messages from the rendered page so the browser only has to keep the part you're actually working with responsive.
Fully reversible — nothing is deleted
Messages are hidden, not deleted. Your conversation is untouched on OpenAI's side — bring trimmed messages back any time with one click.
Instant speed back
Long threads that crawled become smooth again. Typing, scrolling, and tab switching feel like a fresh conversation.
Private and local
It all happens in your browser. No conversation data is sent anywhere, and there's no account to create.
less ChatGPT memory usage in long conversations
faster scrolling in heavy threads
conversation length stays usable, not unusable
Figures based on AI Workspace usage in long conversations; results vary by thread length and device.
Fast, reversible, and completely safe
Smart Thread Trimming is built to speed things up without ever risking your conversation data.
DOM manipulation, not deletion
Trimmed messages are hidden from the page with CSS, so the process is reversible and your data is completely safe.
A mutation observer keeps it live
As new messages stream in, trimming is applied in real time — you never have to think about it once it's on.
A watchdog keeps stats accurate
A built-in safeguard makes sure counts and state never drift, so what you see always matches what's really rendered.
ChatGPT slowdowns, explained
Why does ChatGPT get slower with long conversations?
The longer a conversation gets, the more messages your browser has to keep rendered on the page at once. Every message stays in the page's memory, so a very long thread can use hundreds of megabytes and make typing, scrolling, and tab switching lag. It's a browser-rendering problem, not your internet connection.
How do I fix ChatGPT lag in long chats?
Smart Thread Trimming in AI Workspace fixes it by trimming older messages out of the rendered page so the browser only keeps the relevant part responsive. The conversation itself is never deleted — messages are hidden and can be restored instantly, so ChatGPT stays fast without losing anything.
Will trimming delete my messages?
No. Trimming hides messages from the page using CSS; it does not delete them and does not touch your conversation on OpenAI's side. You can bring trimmed messages back with one click at any time.
Is Smart Thread Trimming safe and private?
Yes. Everything happens locally in your browser. No conversation content is sent to any server, there is no account to create, and AI Workspace stores its data on your device.
Is it free?
Smart Thread Trimming is part of AI Workspace, which is free to start. Install it from the Chrome Web Store and you can speed up long ChatGPT conversations right away.
Make ChatGPT fast again
Install AI Workspace and turn on Smart Thread Trimming — your longest conversations stay quick, and nothing is ever lost. Free to start, no account required.
Free forever • No credit card required • Ready in seconds