How to Use OpenClaw Fast Mode

OpenClaw fast mode is a session control for asking supported providers to prioritize speed. It is not a universal “make the model smarter” switch. The docs define /fast with on and off states, session overrides, per-agent defaults, model params, and provider-specific mappings. Used well, it is useful for live support, operational checks, and interactive coding loops where waiting hurts.

30-second answer

Send /fast on to enable fast mode for the current session, /fast off to disable it, or /fast with no argument to inspect the effective state. Inline /fast affects one message. Directive-only /fast stores a session override. /status shows Fast only when the mode is enabled.

How OpenClaw resolves it

Fast mode resolves in order: inline or directive-only request, session override, per-agent fastModeDefault, per-model config under agents.defaults.models, then fallback off. This matters because a model may already have a configured priority behavior even if the user did not type /fast in the current message.

Provider mappings

The docs list provider-specific behavior. For OpenAI and OpenAI Codex paths, fast mode maps to priority processing on supported Responses requests. For direct Anthropic API traffic, /fast on maps to auto service tier and /fast off maps to standard_only. For MiniMax on the Anthropic-compatible path, fast mode can rewrite MiniMax-M2.7 to the high-speed variant. Unsupported routes should not be assumed to change.

When to use it

Use fast mode when latency is part of the product experience: incident triage, live chats, quick follow-ups, and hands-on sessions where the user is waiting. Do not leave it on blindly for background jobs, long SEO generation, or low-priority research. Speed settings can affect cost, routing, or model behavior depending on provider.

Interaction with thinking

Fast mode and thinking are separate controls. A fast high-thinking request may still be slower than a cheap low-thinking request. For simple operational summaries, use low thinking and fast only if humans are blocked. For hard architecture decisions, speed is less important than correctness.

Playbook angle

The Playbook pattern is to treat /fast like an escalation lane. It is great when urgency is real; it is wasteful when everything is labeled urgent by default.

Runbook checklist

Before you automate this, run one small acceptance test with harmless input. Confirm the tool is available to the right agent, the credential is loaded from config or environment, the output shape matches the workflow, and the failure message is understandable to a tired operator. If the feature touches money, public channels, logged-in browsers, host commands, or customer data, put a review step before the side effect. If it only reads data, still record the source and timestamp so future sessions do not treat stale context as fresh truth. Keep the first version narrow, then expand once the logs show the agent is choosing the right tool for the right reason. When the docs are incomplete, prefer a conservative sentence over a clever invented shortcut that future agents cannot reliably verify. Add one monitoring habit as well: after the first real run, check the transcript or logs for missing prerequisites, broad prompts, stale assumptions, and accidental side effects. Tighten the instruction while the failure is fresh. The best OpenClaw workflows improve in small, documented passes instead of one giant rewrite after something breaks in public. For SEO pages, that same discipline matters: do not promise hidden capabilities, paid-provider limits, or setup shortcuts unless the current docs say so. Trust compounds when the guide is accurate even in the boring operational edge cases that matter during real maintenance windows.

Operator note

How to Use OpenClaw Fast Mode works best when it is written into a small runbook instead of treated as a magic switch. Record who owns the workflow, which config keys are allowed, which credentials are required, what the agent may do without approval, and what counts as a failure. OpenClaw gives agents broad tools, but the reliable version is boring: one source of truth, one verification step, and one rollback path when a provider or channel behaves differently than expected.