stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses)

Resolved 💬 5 comments Opened Feb 13, 2026 by wanchengwarehouse Closed Feb 13, 2026

💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

Hi,

I've been getting this error for the last hour, whenever I submit, it counts to 5 seconds

Working (5s • esc to interrupt)

And then attempts reconnecting

Reconnecting... 1/5 (9s • esc to interrupt)
└ Stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses)

And after 5 retries:

stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses)

View original on GitHub ↗

5 Comments

github-actions[bot] contributor · 6 months ago

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

#10378
#9677
#9830
#11735
#10985

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patrickcantelmi-eng · 6 months ago

Me too, I just created a case myself, I tried almost everything, full reinstall, older version of codex. Nothing works, claude is still working but I guess it uses a different type of authentication.

yadelagadou · 6 months ago

Same issue here (VS Code on Windows 10), started today and happens even on very short prompts.

VS Code:

Version 1.109.3 (user setup)
Commit b6a47e94e326b5c209d118cf0f994d6065585705
OS Windows 10 x64 10.0.19045

Error:
Stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses)

Output logs (excerpt):

codex_core::codex: stream disconnected - retrying sampling request (1/5 ... 5/5)
Error fetching vscode://codex/local-environments

Tried (no change):

Developer: Reload Window
Disable/Enable extension
Renamed %USERPROFILE%\.codex -> .codex.BAK
Model change (gpt-5-3-codex extra high -> gpt-5.2-codex)

Network check:

curl GET to https://chatgpt.com/backend-api/codex/responses returns HTTP response (Method Not Allowed), so HTTPS/TLS reachable.

VPN/Proxy: none

etraut-openai contributor · 6 months ago

Thanks for the bug report, but without logs there's not much I can do to diagnose. If you see this again, please use the /feedback slash command to upload your logs and session information, then file a bug report and include the thread ID.

aircrushin · 5 months ago

@patrickcantelmi-eng how to use an older version of codex app ?