OpenCode does not show model response

[shochdoerfer]

Description

We are running one of our models via vLLM. One of the last OpenCode releases seems to have broken something. OpenCode does not show the model response in the UI.

I can see in our AI gateway that the model did respond. Also, I tested the same query with the same model in a different coding agent (Crush) and I got the response printed on screen.

Not sure if the problem is the model (Qwen/Qwen3-Coder-30B-A3B-Instruct) or the fact that we host it via vLLM or maybe something different. We haven't updated the model since weeks so I don't think the model is the issue.

Plugins

No response

OpenCode version

1.18.15

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

Linux (WSL2)

Terminal

Windows Terminal

[github-actions]

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

• OpenCode repeatedly loops compaction-style summaries when using local vLLM (@ai-sdk/openai-compatible) with Qwen3-Coder #22792: OpenCode repeatedly loops/fails when using local vLLM with the same model (Qwen3-Coder-30B-A3B-Instruct) via @ai-sdk/openai-compatible
• Local vLLM + Mistral Medium 3.5 can exit the loop on truncated assistant text with finish=stop #36657: Local vLLM provider causes response to not show / loop exits prematurely with truncated assistant output
• Bug: DeepSeek v4 Flash Free (New) returns blank response in Desktop App on Windows 11 #40483: Model responds (confirmed via gateway/logs) but response area remains blank in the UI

If your issue is distinct from those, please add any additional details (e.g., logs from ~/.local/share/opencode/log/opencode.log, the relevant portion of your opencode.json config, and whether the response is missing entirely or partially shown) to help narrow down the root cause.

[rekram1-node]

looks to me like one of the following:

• model only emitted reasoning
• model emitted reasoning and then stopped

Btw u can expand the thought by clikcing it, or toggling the collapse state using ctrl+p -> thinking

[shochdoerfer]

Weird. It is working now again in OpenCode. Not sure what has changed.