The writer and the assistant
The composer is where you write a single post or thread and shape it until it is ready. The assistant is a chat where you can think out loud, ask for angles, or request drafts. Both use AI, and both lean on your voice profile so the output starts closer to how you write.
Drafts flow from chat to composer
When the assistant writes a ready to post draft, it wraps it in draft markers and renders it as a card with an Open in composer button. One click prefills the composer with that text so you can polish and schedule it.
Which model writes your posts
By default TweetX uses a server hosted DeepSeek key, so AI works out of the box with nothing to configure. If you would rather use your own provider, you can bring your own key in Settings under Accounts.
| Provider | How it connects |
|---|---|
| DeepSeek | The built in default. No setup needed. |
| Claude (Anthropic) | Bring your own key. Speaks the Anthropic Messages API. |
| ChatGPT (OpenAI) | Bring your own key. OpenAI compatible. |
| Grok | Bring your own key. OpenAI compatible. |
| OpenRouter | Bring your own key. OpenAI compatible. |
Your keys are encrypted
Bring your own keys are encrypted with AES-256-GCM and stored in a service role only table. They never reach the browser or a log.
A typical writing pass
- 1Start a draftWrite from scratch in the composer, or ask the assistant for a starting angle.
- 2Ask for drafts in chatTell the assistant what you want to say. It returns drafts as cards you can open in the composer.
- 3Open in composer and editPrefill the composer with a draft, then cut, sharpen, and make it sound like you.
- 4Schedule or publishSend it to the queue, place it on the calendar, or publish straight to X.
Keep the voice yours
The AI is there to get you unstuck, not to replace your judgment. Numbers, opinions, and the actual point of a post should come from you. Read every draft before it goes out. A strong voice profile means less editing, but the final call is always yours.