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mimo-v2.5-pro streams hang indefinitely — accepts connection, sends keepalives, never produces content #24669
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Description
Description
When sending requests to mimo-v2.5-pro via the API proxy, the upstream accepts the connection (200 OK) but never produces any content. SSE keepalive bytes are sent periodically, but no actual data payloads arrive. Streams have been observed hanging for 30+ minutes without timing out or returning an error.
This leaves the client connection stuck indefinitely — the proxy believes the stream is alive (keepalives are flowing) but no content is ever delivered.
Steps to reproduce
- Send a chat/completions request to mimo-v2.5-pro through the opencode proxy
- Observe the connection hangs with no content output
- SSE keepalive bytes continue flowing, keeping the connection alive
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github-actions commentedon Apr 27, 2026
This issue might be a duplicate of existing issues. Please check:
Please review those issues and consider whether your report is already tracked there.
github-actions commentedon Jul 4, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.