Vesper
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💡
✎ Editing your message: sending replaces it and everything after it
A small model built from scratch at home. It makes things up.

Settings

Appearance

Theme
Accent color
Text size
Go dark while thinkingLight mode fades to dark so the code shows, then back
Background while thinkingAuto follows the season: Halloween now, then autumn, then snow

Pet

Show the pet
Falls asleep when idleAfter a minute of quiet; wakes up when you type

Chat

Your nameThe model sees this name in chat mode
New chats start in
Default thinking mode
Enter sendsOff: Enter makes a new line, Ctrl+Enter sends
Sound when a reply is done
Notify me when a reply is donePops up if you switched to another app or tab

App

Install Vesper as an appOpens full screen with its own icon

Default model

Account

…
Have a code?Redeem it for extra benefits, like unlimited use

Usage

Your chats

Saved in this browser only

Keyboard shortcuts

EnterSend (or new line, see above)EscStop the reply / close windows Ctrl Shift ONew chatCtrl /Jump to the message box Ctrl BShow / hide the sidebar

Welcome to Vesper

Enter your access key or one-time code.
or use an access key

Diagnostic access

Enter your PIN
DIAGNOSTIC
Chat script

Base models only continue text, so chat is played as a script between two names. The model menu at the top now lists every checkpoint.

Token confidence · hover for top 5
Send a message to see how sure the model was about each token.
Drafts · higher score = the model was more sure, minus repetition
Medium, High and Extreme write several drafts; they show up here.
Exact text the model saw
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—offline
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━ train loss · ● val prose · ● val code
Latest validation loss
A
B