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Changing Agent unexpectedly also changes the selected model #61098
Description
Description
While using the latest desktop, I enabled the "Show agent" setting.
If I switch from "Build" to "Plan", this also changes my model, so I have to re-select the model I want to use.
I would expect that the default model is used when starting a session, not after I have already made manual changes to model selection during a session.
I'm guessing this is because the default model is applied for each of the Build and Plan agents, but the behavior seems unintuitive and feels like it would be better on a per-session basis rather than per-session, per-agent.
Plugins
N/A
OpenCode version
2.2.5
Steps to reproduce
- Enable the "Show agent" setting.
- Have at least 2 models to pick from, with one of them set as a the default model in the config.
- Start a new session.
- Switch to the non-default model.
- Switch from the build agent to the plan agent.
- Observe that the model changes unexpectedly.
Screenshot
No response
Operating System
RHEL 9.6
Terminal
bash
Activity
opencodejr commentedon Nov 1, 2026
Thanks for the clear report, @jrmcpeek!
The desktop app currently does this on purpose. It remembers a model choice per agent. When you switch from Build to Plan, it saves the model you picked under Build and restores the last model you picked under Plan. If you haven't picked one under Plan yet, you get Plan's configured model or the default. That's why your manual choice doesn't carry over.
What you're asking for is different: once you pick a model in a session, it should stay through agent switches, and the default should only apply when a session starts. I'm treating this as a feature request, and maintainers will consider it.
Related issues:
Tarquinen commentedon Nov 2, 2026
Thanks for the report! Keeping a hand-picked model across agent switches is tracked in #43179, so I'm closing this as a duplicate.
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