# Show HN: Don't Hit Send – the model answers while you type

> Source: <https://github.com/scalattice/dont-hit-send>
> Published: 2026-09-12 05:06:07+00:00

Type. The model is already answering. There is no send button.

Left pane is one long draft. Right pane is a stack of replies. Pause for ~350ms and it fires a normal streaming chat completion with the whole draft. Type again and it aborts the last request if that reply never produced text; if it did, that bubble stays and a new one stacks. Bubbles never rewrite. Enter is a newline.

That is overlapping unary streams, not a duplex socket. Same shape as ghost-text, pointed at a conversation instead of a code line. The bit that took the work is the hold: do not fire on "and N" while someone is still typing "and NASA".

git clone [https://github.com/scalattice/dont-hit-send.git](https://github.com/scalattice/dont-hit-send.git)
cd dont-hit-send
export SCALATTICE_API_KEY=slt_...   # or OPENAI_API_KEY + OPENAI_BASE_URL
./run.sh
# [http://127.0.0.1:8766](http://127.0.0.1:8766)

Stdlib Python, MIT, key stays on your machine. Defaults to Scalattice OpenAI-compat; any host that speaks /v1/chat/completions works from Settings or env.

Browser demo on our inference platform (sign-in after a short try): [https://scalattice.com/dont-hit-send/](https://scalattice.com/dont-hit-send/)

Why've we built this? The conventional AI chat interface is overdone and lacks innovation, I've personally been building agentic software for a while now and feel a lack of innovation in the interactivity. This is a step towards trialling some different inference interfaces!

Comments URL: [https://news.ycombinator.com/item?id=49669012](https://news.ycombinator.com/item?id=49669012)

Points: 1

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