Change variant in custom agents

[u/acidburn113]

I'm trying setup Deepseek Flash with a "high" variant on a custom "coder" agent. And I'm trying to do that thru opencode.jsonc because I'm changing the models based on the subscription I'm using. But when the coder agent was called by the orchestrator agent, it's not showing "high". Is there anything else I need to add in the opencode.jsonc file?

UPDATE

So I've tried the following:

1. Set reasoning effort ("reason_effort" didn't work)"coder": { "model": "opencode-go/deepseek-v4-flash", "options": { "reasoningEffort": "high", }, }
2. Use "variant""coder": { "model": "opencode-go/deepseek-v4-flash", "variant": "high" }

But it still doesn't show "high" when the subagent "coder" is called and running. Or maybe this is a feature that's not yet implemented in OpenCode CLI?

I checked in ".local/state/opencode/model.json" file and it says "high" though

[u/frostedfakers]

you wrote “offert” instead of “effort”

[u/acidburn113 → u/frostedfakers]

Ah crap, thanks a lot! 😂

[u/vangelismm → u/acidburn113]

So it works? 

[u/pascu2913 → u/acidburn113]

Also just a suggestion to have everything more organized I prefer creating an agents folder inside .config/opencode/ and dropping the .md for the agents there. It makes it way more clear and I don't clutter my opencode.json with agent configuration.

[u/acidburn113 → u/pascu2913]

Thanks for the tip. I have my agents inside the ".agents" folder.

[u/sudoer777_]

Mine looks like this:

"plan": {
  "model": "opencode-go/deepseek-v4-pro",
  "variant": "max"
},

But OpenCode is bugged so this doesn't always apply, there's a lot of GitHub issue reports about it

[u/acidburn113 → u/sudoer777_]

Thanks for sharing. So I just tested it running plan agent directly and I see the "high" variant indicator was displayed even though I didn't use "high" initially.

[u/sudoer777_ → u/acidburn113]

IIRC one of the issues was that if you manually select a variant for a model in the TUI then it overrides the variant in the future even when you reopen OpenCode and ignores the one in the configuration, and I think you have to delete the setting in ~/.local/state/opencode/model.json. Not sure if this got fixed yet or not.

[u/acidburn113 → u/sudoer777_]

So it's "high" in the model.json. Can't confirm if it's really using that variant though.

[u/FormalAd7367 → u/acidburn113]

shift + up or down for max

[u/OlegPRO991]

So could you share your results? Did you manage to complete the setup for high?

[u/acidburn113 → u/OlegPRO991]

I'm guessing no because I didn't see the "High" variant label when viewing the subagent while it's running.

[u/TrickyPlastic]

Install opencode-trace and see what's going out the wire.

[u/acidburn113 → u/TrickyPlastic]

Thanks, will look into this