seed · a self modifying webpage

seed · control

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copy url<br>config<br>reset

provider config

provider

anthropic (claude)<br>openai (responses)<br>local · chrome built-in (gemini nano)

api key

model

claude-sonnet-4-6 (sonnet 4.6)<br>claude-opus-4-7 (opus 4.7 · most capable)<br>claude-haiku-4-5-20251001 (haiku 4.5 · fast)

api key

model

Uses OpenAI's Responses API directly from this browser. The key is stored in localStorage and sent only with generation requests.

Uses Chrome's built-in window.LanguageModel API (Gemini Nano, runs entirely on-device). No API key, no network calls.

checking availability…

Setup: Chrome 127+ with the flag chrome://flags/#prompt-api-for-gemini-nano enabled. The model downloads (~1–2 GB) on first use.

Note: Gemini Nano is small and may struggle to produce well-formed HTML for complex prompts. Best results on short, focused requests.

save

seed · generating<br>00:00

contacting model…<br>cancel