Model configuration changedmodel-config
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#### Check the effort level you set #### When a new effort level starts
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677677You can change effort through any of the following:
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679* **`/effort`**: run `/effort` with no arguments to open an interactive slider, `/effort` followed by a level name to set it directly, or `/effort auto` to clear your saved level for the active model. You can run it while Claude is working, and once you confirm the [cache warning](https://code.claude.com/docs/en/prompt-caching.md#changing-effort-level), if Claude Code shows one, Claude Code applies the new level to the next request in the turn
679* **`/effort`**: run `/effort` with no arguments to open an interactive slider, `/effort` followed by a level name to set it directly, or `/effort auto` to clear your saved level for the active model
680680* **In `/model`**: use left/right arrow keys to adjust the effort slider when selecting a model
681681* **`--effort` flag**: pass a level name to set it for a single session when launching Claude Code
682682* **Environment variable**: set `CLAUDE_CODE_EFFORT_LEVEL` to a level name or `auto`
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689689If you set `effortLevel` in [managed settings](https://code.claude.com/docs/en/managed-settings.md), Claude Code applies it at the settings step of the [effort resolution order](#adjust-effort-level), and users can still change the level with `/effort` or `--effort`. To keep users at or below a level, set [`maxEffortLevel`](https://code.claude.com/docs/en/settings-reference#maxeffortlevel).
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691The effort slider appears in `/model` when a supported model is selected. The current effort level is also shown in the session header next to the model name, for example "with low effort", so you can confirm which setting is active without opening `/model`. The footer also briefly shows the effort level at startup and when it changes.
691#### Check the effort level you set
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693The effort slider appears in `/model` when a supported model is selected. A level in the session header, for example "with low effort", comes from your effort setting, even if Claude is [still working at the old level](#when-a-new-effort-level-starts). The footer also briefly shows the effort level at startup and when it changes.
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695#### When a new effort level starts
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697In a terminal session, once `/effort` confirms the new level, the next message you send runs at that level. You can send it after the turn in progress ends or [while Claude is still working](https://code.claude.com/docs/en/interactive-mode.md#queue-messages-while-claude-works):
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699* **After the turn ends**: you don't have to do anything until then, and it's expected if the turn finishes at the old level
700* **While Claude is still working**: type a message, such as `keep going`, and press `Enter` to queue it without interrupting the turn. Claude gets it when its current tool calls finish, or when the turn ends at the latest, and works at the new level from then on.
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702Before v2.1.242, Claude Code could queue `/effort` itself until the turn finished, and always did in a session that doesn't [fetch feature flags](https://code.claude.com/docs/en/env-vars.md#features-that-need-feature-flag-fetching), such as on a [third-party provider](https://code.claude.com/docs/en/third-party-integrations.md).
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693704#### Adaptive reasoning and fixed thinking budgets
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