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Defaults for subagent models include models unavailable on free plan, causing errors #5456

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Description

@piers7

Describe the bug

The CLI (v1.0.112 at least) ships with the following default models for subagents:

  • explore -> gpt-6-luna
  • task -> gpt-6-luna
  • research -> claude-sonnet-5.5

Neither gpt-6-luna and claude-sonnet-5.5 are at present available on the free plan, so this configuration just causes confusing 'unknown model' errors when launching subagents (other subagents default to 'inherit').

To a novice user on the free plan, perhaps evaluating the product before subscribing, this just looks like it doesn't work, or doesn't work properly with whatever skill framework they are attempting to evaluate.

I note that the CLI is explicitly ticked for all plans on the comparison page (https://github.com/features/copilot/plans), so I think it would be beneficial if it shipped in a configuration that 'just worked'

Affected version

CLI 1.0.112

Steps to reproduce the behavior

  1. For a user on the free plan
  2. Launch the CLI and login
  3. Perform any action that attempts to launch a 'task', 'explore' or 'research' subagent

Expected behavior

The subagent should just run (given this is a fresh, out of box install).

Additional context

No response

Activity

  1. added theissue type on Nov 14, 2026
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