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The tools in this laboratory run directly against Anthropic's Claude API. You will need your own key. It takes about two minutes to set up and includes a small free credit to start with.
// Your key is encrypted with AES-256 and stored on your device only. It is never sent to our servers — requests go directly from your browser to Anthropic's API. You can clear your key at any time using the Clear Key button above. For usage costs and full history, check your Anthropic console.
Based on Claude Sonnet 4.6 pricing ($3 / 1M input tokens, $15 / 1M output tokens). Tracks usage from this browser only — does not include other devices or direct Anthropic console usage. The counter is shared across all laboratory tools. Reset clears this browser's count only.
If you're worried your day might be boring, explore all the interesting — and deeply improbable — things that could happen instead. Describe your plans, a scenario, or (if you're a writer stuck on a scene) the situation your characters are in. The calculator generates 15 events across five probability tiers: from the boringly inevitable to the cosmically absurd. Each comes with precise pseudo-scientific odds. Named in affectionate tribute to Douglas Adams, who knew that the universe is not only stranger than we suppose, but stranger than we can suppose.
Be specific — the more detail you give, the more delightfully specific the results.