Subagent model not as requested

“Hours later, spawning a teammate (Agent tool, separate pane process) launched it with --model claude-opus-4-8.”

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/themes/232/file
Follow it to file my report. Show me the text before you send.

Fading. No reports and thumbs-up in the last 7 days and 3 the week before, down from 8 a week at the late-September peak.

On Bedrock, a subagent with the sonnet alias ignores ANTHROPIC_DEFAULT_SONNET_MODEL, sends a us. profile ID and fails with a 400 invalid model identifier
After a safety refusal, an Agent-tool subagent or teammate continues on claude-opus-4-8 without notice, even with switchModelsOnFlag set to false
A custom subagent resumed with SendMessage after /clear runs as general-purpose on the parent's model and loses its definition
The /tasks list and the subagent transcript view status line show the parent session's model instead of the subagent's

Effort and Ultracode controls missing in the VS Code extension for [1m] model selections
Main-session model choice applying globally or resolving to older models

Oct 31, 2026Model picker change does not apply to subagents launched with an explicit model, and the UI gives no indication#106383
Oct 30, 2026Custom subagent resumed without its original definition silently inherits the parent model (2.1.314)#106208
Oct 30, 2026SendMessage resume from a later session (after /clear) drops a custom subagent's type and model#106152
Oct 23, 2026Cloud session: custom subagent resumed with SendMessage after /clear runs as general-purpose (loses model and cacheTtl)#104713
Oct 17, 2026Subagents spawned on a higher-tier model than the session model, without user confirmation#103041
Sep 30, 2026Bedrock: subagent model alias resolved with the parent session's inference-profile prefix, ignoring ANTHROPIC_DEFAULT_<TIER>_MODEL#98516
Sep 30, 2026Subagents ignore switchModelsOnFlag: false: after a safety refusal, an Agent-tool subagent silently continues on claude-opus-4-8#98387
Sep 29, 2026[bedrock] Subagent sonnet alias ignores ANTHROPIC_DEFAULT_SONNET_MODEL and sends an invalid us. profile ID (regression of / same as #73556)#98298
Sep 27, 2026Sub-agents requesting model: "opus" silently continue on claude-opus-4-8 after a cyber-content refusal — parent report still says "Opus"#97687
Sep 27, 2026Teammates inherit a stale model after refusal fallback: spawn uses the main-loop override / mainLoopModel, not the session's effective model#97653

Show all 12Show only the newest 10

Sep 27, 20262.1.283: no place in the UI shows a subagent's model (/tasks rows lost it, transcript view shows the parent's)#97634
Sep 26, 2026Subagent transcript view status line shows parent session model, not the subagent's model override#97473