Exactly what LittleLeaf covers.

The real-time leaf is a browser extension. Here is precisely which browsers and AI tools it works in, and — just as importantly — what it doesn't reach. No ambiguity.

Extension v0.1.2 · last updated 12 August 2026

Supported browsers

Supported AI tools

Inside a supported browser, the leaf rates prompts in the web versions of:

• Claude (claude.ai)
• ChatGPT (chatgpt.com and chat.openai.com)
• Google Gemini (gemini.google.com)
• Microsoft Copilot (copilot.microsoft.com)
• Perplexity (perplexity.ai)

AI providers change their interfaces often. LittleLeaf loads its detection rules from a configuration that we can update centrally, so support keeps working without you reinstalling anything.

Scope of the live rating — read this

The leaf appears where a browser extension can appear: the web versions of the tools above, in a supported browser. It does not rate, in real time:

• Native desktop apps (e.g. the Claude or ChatGPT desktop apps)
• Mobile apps (iOS / Android)
• Direct API usage from code, and IDE assistants

This is a deliberate design choice: the only way to reach a desktop or mobile app is to read its screen or keystrokes, and we will never do that. LittleLeaf's promise is that your prompt content never leaves your device and we never read it — a promise we won't break to claim wider coverage.

Whole-organisation reporting (roadmap)

To reflect total AI emissions — including desktop, mobile, and API — the Scope 3 dashboard will ingest your organisation's own aggregate usage data from your AI providers (token counts per period, never prompt content). That gives complete reporting coverage while the live leaf keeps driving behaviour change in the browser. This provider-data feed is on our near-term roadmap; today the dashboard reflects activity captured by the extension.