Unexpected line breaks in the thinking output of GLM-5 via OpenCode Zen #20706

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1. sghng

   added

   bugSomething isn't workingSomething isn't working

   on Apr 2, 2026
2. github-actions

   assigned

   fwang

   on Apr 2, 2026
3. github-actions

   added

   zenRelates to ZenRelates to Zen

   on Apr 2, 2026
4. github-actions commented on Apr 2, 2026

   

   github-actionsBot

   on Apr 2, 2026 – with GitHub Actions

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

   • The opencode under WSL outputs only one word per line during thinking. #20234: Similar symptom of unexpected line breaks/one word per line in thinking output (different environment - WSL, but same visual behavior)
   • [BUG] GLM-5 model pollutes context window with broken thinking output #16903: GLM-5 model polluting context window with broken thinking output (already referenced in your report)

   If your issue is distinct from these, please clarify how it differs.
5. thdxr

   removed

   bugSomething isn't workingSomething isn't working

   zenRelates to ZenRelates to Zen

   on May 3, 2026
6. github-actions commented on Jul 3, 2026

   

   github-actionsBot

   on Jul 3, 2026 – with GitHub Actions

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   To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.
7. github-actions

   closed this as not plannedon Jul 3, 2026