UI Rendering: Thinking Process visible but final response text hidden

[kousaryoukhainda-create]

Description

The OpenCode interface displays the model's internal "Thinking Process" but fails to render the actual final response text. This creates a loop where the AI appears to "think" about providing an answer but the answer is never displayed.

Environment

• Platform: OpenCode (Linux)
• Date: April 2026
• Interface: Terminal interface

Steps to Reproduce

1. Send a query to the AI model
2. Wait for response
3. Observe - only thinking process is visible, no final response appears

Expected Behavior

• Both the thinking process AND the final response should be visible
• OR: Only the final response should be shown (thinking process is internal)

Actual Behavior

• Only the thinking process block is displayed
• Example: "Let me provide a fresh, clear answer now." appears in thinking, but actual answer text never renders

Workarounds Tested

• Refreshing the session may temporarily fix it
• Very short responses (1-2 words) sometimes appear
• Responses without newlines may appear more reliably

Additional Notes

• The AI model believes it has sent the answer (its thinking confirms this)
• The issue appears to be in how the text block following the thinking block is parsed/rendered
• This is reproducible and happens consistently for certain types of responses

Severity

High - Makes the tool unusable for most tasks

[github-actions]

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

• Build mode with Thinking enabled: UI freezes during thinking stream, incomplete output rendering #19512: Build mode with Thinking enabled - UI freezes during thinking stream, incomplete output rendering (very similar: thinking block shows but final response text fails to render)
• UI stuck on 'Thinking...' when tool output is pending #17655: UI stuck on 'Thinking...' when tool output is pending (similar symptom of response not appearing after thinking)

Additionally, your bug report is missing the OpenCode version (e.g., 1.x.x), which is important for reproducing and fixing the issue. Please edit the issue to include:

• OpenCode version (opencode --version)
• Terminal being used

This information helps maintainers narrow down when the regression may have been introduced.

[biolauri]

Can confirm this, having the same behaviour in OpenCode Desktop.