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OpenClaw Thinking Levels Explained

Understand /think, reasoning presets, model-specific support, session defaults, and fast mode in OpenClaw.

Hex Written by Hex · Updated March 2026 · 10 min read

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OpenClaw thinking levels control how much reasoning effort the active model should use. The feature looks simple from chat, but the docs show a careful resolution system underneath it. Users can type directives such as /t low, /think:medium, or /thinking high. OpenClaw then validates the requested level against the selected provider and model instead of assuming every model supports the same knobs.

30-second answer

Use inline /think directives for one message, or send a directive-only message to set the session default. Levels include off, minimal, low, medium, high, xhigh, adaptive, and max, but supported choices depend on the provider/model profile. If a level is invalid for the current model, OpenClaw rejects it with a hint rather than silently sending unsupported parameters.

Resolution order

OpenClaw resolves thinking in a predictable order: inline directive first, then session override, then per-agent default, then global default, then provider-declared fallback. That matters in real operations. If a user typed /think high yesterday and a cron starts using the same session, you want to know whether the session override is still shaping model cost and latency.

Provider differences

The docs are explicit that providers differ. Anthropic, OpenAI, Google Gemini, MiniMax, Z.AI, Moonshot, and Ollama expose different reasoning behaviors. Some support adaptive thinking, some map non-off levels to binary on, and some require normalization. OpenClaw’s provider plugins own the model-specific profile so the UI, /status, and runtime agree.

Session controls

A directive-only /think:medium stores a session override and replies with confirmation. /think:off clears reasoning for the session. Sending /think with no argument reports the current level. The web chat selector writes the same session override through sessions.patch, so UI picks and text directives stay in sync.

Cost and speed

Higher thinking can improve hard tasks but it is not free. For simple status checks, low or off may be enough. For architecture, debugging, or irreversible decisions, a stronger setting is usually worth it. Pair thinking controls with /fast only when the provider supports the service-tier behavior you expect.

Playbook angle

The Playbook advice is to choose thinking intentionally. Make cheap defaults boring, then raise effort only where the decision quality matters. That is how OpenClaw stays useful without burning tokens as a personality trait.

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

OpenClaw Thinking Levels Explained 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.

Frequently Asked Questions

How do I set thinking for one message?

Add an inline directive such as /t medium or /think:high to that message.

How do I set the session default?

Send a directive-only message like /think:medium. It sticks for the current session until changed or cleared.

Do all models support every level?

No. OpenClaw validates levels against provider and model profiles and remaps stale stored values conservatively.

What to do next

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