Speed up responses with fast mode changedfast-mode
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33> Get faster Opus responses in Claude Code by toggling fast mode.
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5<Note>
6 Fast mode is in [research preview](#research-preview). The feature, pricing, and availability may change based on feedback.
7</Note>
5> [!NOTE]
6>
7> Fast mode is in [research preview](#research-preview). The feature, pricing, and availability may change based on feedback.
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99Fast mode is a high-speed configuration for Claude Opus, making the model up to 2.5x faster at a higher cost per token. Toggle it on with `/fast` when you need speed for interactive work like rapid iteration or live debugging, and toggle it off when cost matters more than latency.
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120120 * On Pro and Max, turn them on in the **Usage credits** section of [**Settings > Usage**](https://claude.ai/settings/usage) on claude.ai, or run `/usage-credits` to open that page.
121121 * On Team and Enterprise, a member with billing access turns them on for the organization at [**Organization settings > Usage**](https://claude.ai/admin-settings/usage), and a member without it runs `/usage-credits` to send the organization's admins a request.
122122
123<Note>
124 Fast mode usage draws directly from usage credits, even if you have remaining usage on your plan.
125</Note>
123> [!NOTE]
124>
125> Fast mode usage draws directly from usage credits, even if you have remaining usage on your plan.
126126
127127* **Paid Console organization**: Claude Console accounts don't use usage credits, and your organization pays for fast mode per token with the rest of its API usage. On the Console's free Evaluation plan, `/fast` shows "Fast mode unavailable during evaluation. Please purchase credits." To clear it, purchase credits in your [Console billing settings](https://platform.claude.com/settings/billing).
128128* **Owner enablement for Team and Enterprise**: fast mode is disabled by default for Team and Enterprise organizations. An Owner must explicitly [enable fast mode](#enable-fast-mode-for-your-organization) before users can access it.
129129
130<Note>
131 Four organization settings can block turning fast mode on with `/fast`:
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133 * **Fast mode not enabled**: if fast mode hasn't been enabled for your organization, turning fast mode on with `/fast` shows "Fast mode has been disabled by your organization."
134 * **Fast mode turned off by managed settings**: if your organization deploys [managed settings](/docs/en/managed-settings) that set [`fastMode: false`](/docs/en/settings-reference#fastmode), turning fast mode on with `/fast` shows the same "Fast mode has been disabled by your organization" message.
135 * **Per-session opt-in required**: managed settings that set [`fastModePerSessionOptIn: true`](#require-per-session-opt-in) refuse `/fast on` with the same message everywhere except an interactive terminal session.
136 * **Fast-mode model not allowed**: if your organization's [`availableModels`](/docs/en/model-config#restrict-model-selection) allowlist excludes the fast-mode Opus model, turning it on is refused with "is not in your organization's allowed models". In a session already running on an allowed Opus model that supports fast mode, `/fast` instead enables fast mode on your current model without switching models.
137</Note>
130> [!NOTE]
131>
132> Four organization settings can block turning fast mode on with `/fast`:
133>
134> * **Fast mode not enabled**: if fast mode hasn't been enabled for your organization, turning fast mode on with `/fast` shows "Fast mode has been disabled by your organization."
135> * **Fast mode turned off by managed settings**: if your organization deploys [managed settings](/docs/en/managed-settings) that set [`fastMode: false`](/docs/en/settings-reference#fastmode), turning fast mode on with `/fast` shows the same "Fast mode has been disabled by your organization" message.
136> * **Per-session opt-in required**: managed settings that set [`fastModePerSessionOptIn: true`](#require-per-session-opt-in) refuse `/fast on` with the same message everywhere except an interactive terminal session.
137> * **Fast-mode model not allowed**: if your organization's [`availableModels`](/docs/en/model-config#restrict-model-selection) allowlist excludes the fast-mode Opus model, turning it on is refused with "is not in your organization's allowed models". In a session already running on an allowed Opus model that supports fast mode, `/fast` instead enables fast mode on your current model without switching models.
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139139### Enable fast mode for your organization
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