Error： SSE read timed out

Description

When opencode is writing a file, the error message "error: sse read timed out" is displayed.

Plugins

nothing

OpenCode version

1.2.25

Steps to reproduce

When the opencode skill is used to brainstorm a piece of software, and then the planning-with-files skill is used to create the task_plan.md file, the message "Preparing write..." is displayed. After a while, the message "Tool execution aborted, Error: SSE read timed out" is displayed.

Screenshot and/or share link

~ Preparing write...
 Tool execution aborted

┃
┃ Error: SSE read timed out █
┃

Operating System

ubuntu 24..4

Terminal

MobaXterm

This issue might be a duplicate of existing issues. Please check:

1.2.25 timeouts are too aggressive for larger local models #17307: Same SSE read timed out error on version 1.2.25, with a workaround involving increasing the timeout settings in opencode.json

same problem here with writing plans
for now opencode upgrade 1.2.24 that one works okay

I'm facing the same problem here when writing plans to files. Both, Windows and CLI versions.

Same here, for GLM-5. for almost any task.

Same here. On 1.2.25 Windows.

Same here for 1.2.25 on windows 11

Same here, for GLM-5, On 1.2.25 macos 26.3, for almost any task.

Same problem here, using 1.2.25 installed via npm on Windows 11.

I downgraded to 1.2.24 using npm install -g opencode-ai@1.2.24 and that fixed the issue for now.

Not sure why this started happening today but I'm getting the same now

Same problem here, using 1.2.26 on Windows 11 enterprise.

Same here with Qwen 3.5 through ollama on macos

I ran into the same issue on v1.2.26 (Windows 11, WSL Ubuntu 22.04).
It works fine after downgrading to v1.2.24.

The solution is:
1、Ensure the model's response time is less than 2 minutes.
2、Set a separate timeout for the provider.

"provider": {
"github-copilot": {
"options": {
"timeout": 600000,
"chunkTimeout": 600000
}
}
}

I had the issue with macOS, opencode 1.2.27 and followed suggestions above to bump up the timeouts. It did not help as I still ended up with a timeout error at approximately the same step each time and I decided to reboot the computer and try again.

Rebooted, started opencode entered the same prompt.

Unlike before the reboot the prompt processing was interrupted with a request to give a permission to access a directory needed for processing with possible options to allow once, always allow, deny. It was at the moment I would get a timeout before the reboot. The prompt continued and finished after I provided the necessary permission.

Based on this I think opencode might need to add some more handling when the OS asks for permissions.

Same error 1.2.27.
sometimes timeout at 5min, sometimes 5s.
'timeout' and 'chunktimeout' options didnt help,
A total nonsense in local development, with slow servers, or large research.
These continuous timeout errors make opencode totally unusable.
Had to "upgrade" to 1.2.24.

I had the same issue. Evaded it by using "opencode web" - from web it works fine

I had the same issue. Evaded it by using "opencode web" - from web it works fine

I also had this ploblem, but it doesn't work in webui. it works fine in tui. And upgrade to 1.2.24 webui also works bad, webui show it's opencode desktop version keep in 1.2.27.

This is happening a lot recently (Claud Opus)

Disabled by default on latest.

@rekram1-node

@rekram1-node why this issue has been closed ? problem still happens on 1.14.22

@adamskrodzki

@adamskrodzki the issue was caused by a default SSE chunk timeout of 5 minutes. It was disabled over a month ago. If you are facing a similar issue it is different cause than this or it is a regression.

Consider sharing your config and open a new issue if you are still facing

Thank you for the response Problem was solved once I've set

"provider": {
"minimax": {
"options": {
"timeout": 1800000,
"chunkTimeout": 120000
},

which maybe is a regression because I understand that once I've set "chunkTimeout": 120000 requests get retry after 2 min without response from server ?

This error was occurring for me on some high-stress workflow, many agents in parallel running requests to the same provider (MiniMax)

Funny how often this happens when qwe3.8 27b takes ages to create long files...

@sbe-arg

@sbe-arg I haven't had this issue for ages, even with the new Qwen3.8 27b thinking.

The latest version of the app, and it happens with Qwen3.8 27b

Did you guys solve this issue? I am getting sometimes the same problem with Qwen3.8 27b quantized at 8 bit

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Error： SSE read timed out #17318

Description

Plugins

OpenCode version

Steps to reproduce

Screenshot and/or share link

Operating System

Terminal

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Error： SSE read timed out #17318

Description

Description

Plugins

OpenCode version

Steps to reproduce

Screenshot and/or share link

Operating System

Terminal

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