[BUG] Wrong default subagent model
Status Fixed / completed
Maintainer reply None cached
Activity 4 comments · opened Dec 9, 2025 · closed Jan 26, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
On a Max plan (Team account) the default model for subagents is set to Sonnet rather than Opus. The default model for the main agent is correctly set to Opus though.
What Should Happen?
Subagents should default to Opus when not explicitly setting a model.
Error Messages/Logs
Steps to Reproduce
- Create a subagent without specifying a model.
- Open Claude Code and look at agents with
/agentswhich will show to model used for each agent.
Claude Model
None
Is this a regression?
I don't know
Last Working Version
_No response_
Claude Code Version
2.0.62
Platform
Anthropic API
Operating System
macOS
Terminal/Shell
iTerm2
Additional Information
_No response_
4 Comments
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This is still an issue, here is a screenshot where you can see that the model should be Opus, but sonnet is used for agents even though no model is specified in the agent's file:
<img width="628" height="328" alt="Image" src="https://github.com/user-attachments/assets/e1a05755-c916-46ed-9780-96f71d815743" />
Fixed in 2.1.19
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