Orchestrate teams of Claude Code sessions changedagent-teams
Nearest release: v2.1.318, published under an hour before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 3 Nov 2026 22:18 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 3 Nov 2026 22:37 UTC.
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154154* **Family alias such as `opus`**: On the Anthropic API and Claude Platform on AWS, Claude Code runs the teammate on the newest version of that family the allowlist permits. On providers with provider-specific model IDs, where the [substitution doesn't operate](https://code.claude.com/docs/en/model-config.md#restrict-model-selection), a blocked alias falls back like any other blocked value per the next bullet
155155* **Any other blocked value, including a family alias on providers where the substitution doesn't operate, or one whose family has no permitted version**: Claude Code runs the teammate on the lead's model instead. If you set `CLAUDE_CODE_SUBAGENT_MODEL`, Claude Code tries that model first, under these same rules
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157By default, teammates inherit the lead's [effort level](https://code.claude.com/docs/en/model-config.md#adjust-effort-level). In split-pane mode this applies from v2.1.186; earlier versions did not pass the lead's session effort to split-pane teammates.
157By default, a teammate on the lead's model inherits the lead's [effort level](https://code.claude.com/docs/en/model-config.md#adjust-effort-level). In split-pane mode this applies from v2.1.186; earlier versions did not pass the lead's session effort to split-pane teammates. For a teammate on another model, see [Effort level of subagents and teammates](https://code.claude.com/docs/en/model-config.md#effort-level-of-subagents-and-teammates).
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159159### Have teammates plan before implementing
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