Subagents ignore session model

“Subagents launched afterwards kept running on Fable for hours.”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/claude-code/issues/18907/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

Subagents run on higher-tier model than session model. Subagents launched with an explicit model ("fable") ignore the session's Opus 5.5 selection, with no confirmation prompt, and drew on plan limits.

Is this your bug?

File my report

Where: Subagent launching
Versions: 2.1.302
Platforms: macOS
How bad: Breaks a normal workflow.

Part of: Subagent model not as requested5 bugs

Sub-agents silently run on Opus 4.83 people
Resumed custom subagent loses its type and model via SendMessage3 people
Bedrock subagent sonnet alias fails2 people
Subagent view shows parent model4 people

Not quite your bug?

Session model pick becomes default6 people

Original reports2, newest first

Oct 31, 2026Model picker change does not apply to subagents launched with an explicit model, and the UI gives no indication#106383
Oct 17, 2026Subagents spawned on a higher-tier model than the session model, without user confirmation#103041