# Cursor Auto-Switches to Composer 2.5 After API Limit Is Reached, Causing Context Window Loss **URL:** \ **Category:** Bug Reports\ **Tags:** context, composer, anthropic\ **Created:** [July 8, 2026, 9:23am UTC](https://forum.cursor.com/t/cursor-auto-switches-to-composer-2-5-after-api-limit-is-reached-causing-context-window-loss/165119 "2026-07-08T09:23:00Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![OsamaAlBanna](https://avatars.discourse-cdn.com/v4/letter/o/db5fbb/32.png) [@OsamaAlBanna](https://forum.cursor.com/u/OsamaAlBanna)\ **Post date:** [July 8, 2026, 9:23am UTC](https://forum.cursor.com/t/cursor-auto-switches-to-composer-2-5-after-api-limit-is-reached-causing-context-window-loss/165119/1 "2026-07-08T09:23:00Z")
### Where does the bug appear (feature/product)? Cursor IDE ### Describe the Bug Hi, i have context window of 480K+ on fable 5 i reached the limit so now cursor switched to composer 2.5 causing me to lost the context i want to continue after renew the subscription but now i cant i cant even see the thinking process of the session, everything disappeared, not only that: i just noticed that all files created by the last prompt does not appear in the session, although it is on the disk ### Steps to Reproduce use any model that has context window more than composer 2.5 can handle, and reach your API limit, cursor will redirect to composer 2.5 causing you context losing ### Expected Behavior cursor should just stop ### Screenshots / Screen Recordings ![CleanShot 2026-07-08 at 12.20.55@2x.png](https://us1.discourse-cdn.com/cursor1/original/3X/7/1/7130244c969d64500b103bea7ab5aa7472ab00f7.png) ### Operating System MacOS ### Version Information Version: 3.10.11 VS Code Extension API: 1.125.0 Commit: 4ef9fe3d055f8c4523179a090f14eb835bc3c940 Date: 2026-07-03T04:44:14.398Z Layout: IDE Build Type: Stable Release Track: Default Electron: 40.10.3 Chromium: 144.0.7559.236 Node.js: 24.15.0 V8: 14.4.258.32-electron.0 xterm.js: 6.1.0-beta.256 OS: Darwin arm64 24.6.0 ### For AI issues: which model did you use? Fable 5 ### For AI issues: add Request ID with privacy disabled ab450108-f4b4-4e6f-b9cc-46130e0ded6f ---
**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\ **Post date:** [July 8, 2026, 9:23am UTC](https://forum.cursor.com/t/cursor-auto-switches-to-composer-2-5-after-api-limit-is-reached-causing-context-window-loss/165119/2 "2026-07-08T09:23:09Z")
Hi there! We detected that this may be a bug report, so we’ve moved your post to the **Bug Reports** category. To help us investigate and fix this faster, could you edit your original post to include the details from the template below? > **Bug Report Template - Click to expand** > > **Where does the bug appear (feature/product)?** > > - Cursor IDE > - Cursor CLI > - Background Agent (GitHub, Slack, Web, Linear) > - BugBot > - Somewhere else… > > * * * > > **Describe the Bug** > A clear and concise description of what the bug is. > > * * * > > **Steps to Reproduce** > How can you reproduce this bug? We have a much better chance at fixing issues if we can reproduce them! > > 1. … > 2. … > 3. … > > * * * > > **Expected Behavior** > What is meant to happen here that isn’t working correctly? > > * * * > > **Screenshots / Screen Recordings** > If applicable, attach images or videos (.jpg, .png, .gif, .mp4, .mov) > > * * * > > **Operating System** > > - Windows 10/11 > - MacOS > - Linux > > * * * > > **Version Information** > > - For Cursor IDE: Menu → About Cursor → Copy > - For Cursor CLI: Run `agent about` in your terminal > > ```auto > IDE: > Version: 2.xx.x > VSCode Version: 1.105.1 > Commit: ...... > > CLI: > CLI Version 2026.01.17-d239e66 > > ``` > > * * * > > **For AI issues: which model did you use?** > Model name (e.g., Sonnet 4, Tab…) > > * * * > > **For AI issues: add Request ID with privacy disabled** > Request ID: f9a7046a-279b-47e5-ab48-6e8dc12daba1 > For Background Agent issues, also post the ID: bc-… > > * * * > > **Additional Information** > Add any other context about the problem here. > > * * * > > **Does this stop you from using Cursor?** > > - Yes - Cursor is unusable > - Sometimes - I can sometimes use Cursor > - No - Cursor works, but with this issue The more details you provide, the easier it is for us to reproduce and fix the issue. Thanks! ---
**Author:** ![mohitjain](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/mohitjain/32/100229_2.png) [@mohitjain](https://forum.cursor.com/u/mohitjain)\ **Post date:** [July 8, 2026, 12:33pm UTC](https://forum.cursor.com/t/cursor-auto-switches-to-composer-2-5-after-api-limit-is-reached-causing-context-window-loss/165119/7 "2026-07-08T12:33:46Z")
Hi there, When you hit your API usage limit, Cursor auto-switches you to Composer 2.5 instead of stopping or staying on a model that still has room. We agree it shouldn’t silently downgrade you like that. The important part: your work isn’t lost. Your files are safe on disk (as you noticed), and the conversation itself isn’t deleted on our side. Because Composer 2.5 has a much smaller context window than Fable 5, the session view collapses and summarizes the earlier turns, which is why the thinking steps and recent edits look like they vanished from the panel even though nothing was removed. To keep working on Fable 5: enable on-demand usage (or wait for your monthly usage to reset), then reselect Fable 5 from the model picker and continue in the same thread. With on-demand enabled, you stay on your chosen model at the same API rates without being downgraded. Details here: **[Usage and limits](https://cursor.com/help/models-and-usage/usage-limits)**. There isn’t a setting today that forces a hard stop instead of the switch, but that behavior (stop, or fall back to a model that actually has room) is exactly what we’re looking at. ---
**Author:** ![mohitjain](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/mohitjain/32/100229_2.png) [@mohitjain](https://forum.cursor.com/u/mohitjain)\ **Post date:** [August 10, 2026, 4:06pm UTC](https://forum.cursor.com/t/cursor-auto-switches-to-composer-2-5-after-api-limit-is-reached-causing-context-window-loss/165119/11 "2026-08-10T16:06:00Z")
Hey @OsamaAlBanna following up. Hitting your API limit no longer dead-ends you on a still-capped Composer 2.5. The fallback now switches to a model that has room, so you stay unblocked. This was a change on our side, so nothing to update. If you’d rather stay on Fable 5 through the limit, enabling on-demand usage keeps you on your chosen model. Let me know if it still switches you onto something that can’t continue