Feedback moved to Settings

You can still send us feedback any time - open Settings → General and use the Send Feedback button there.

What's New moved to Settings

You can view all the latest updates anytime - open Settings → General and use the View Updates button there.

Before you press play

No Spotify Premium? You will only get 30 second previews here, in every browser. That is Spotify's rule and not something Caulrion can change. For full songs, open the Spotify app or player.spotify.com, click the song icon, then turn on picture in picture so the player floats over Caulrion while you work.

through testing i found it doesnt work if you have premium because Safari hides the small sign in file that Spotify uses to recognise your account whenever the player is sitting inside another website, so Spotify assumes you are not a subscriber and drops you down to previews. i have tested it on chrome and it works (I havent tested it on any other browsers though) so please move there to use this feature :). Come time i will try to fix this issue but please bear with for now

Tip: want your own playlists in here? Open Spotify, copy the link to any playlist or song, and paste it into the Paste a Spotify link box in the player. It gets added to Recents, and the playlists already in here stay where they are.

Dev's picks

enjoy my favorites! I normally use lofi beats when im studying, underground when coding, r and b when just chilling on caulrion, and chill when using Artis

How to enable picture in picture

Welcome to Caulrion Beta!

Hi! I'm the developer. Thank you for testing Caulrion. Since this is an early beta, I'd love your feedback to help shape the final release.

Please note: Everything you see in Caulrion such as features, design, and functionality is subject to change as we continue to develop and improve the product.

Please click here to leave a suggestion.

Welcome to Caulrion

Sign in to sync your chats across devices.

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There should be no cost for limitless understanding and expression.


“Imagine a world in which every single person on the planet is given free access to the sum of all human knowledge. That’s what we’re doing.”
Jimmy Wales, founder of Wikipedia

Caulrion is free. Not a trial, not a limited tier, not free until it gets popular. There are no plans, no usage caps, and nothing held back behind a payment.

If a tool helps you think more clearly and say what you mean, charging for it only decides who gets to do that. So this one does not.

  • Every mode: Caulrion, Eddy, Nova and Artis
  • Both models, including Advanced reasoning
  • Unlimited messages, image generation and file uploads
  • Unlimited memory and Neural Network threads
  • Collaboration Rooms, voice, and everything else

Built by one developer, for anyone who wants to use it.

Settings

Profile

How you appear in Caulrion and across your conversations.

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✓ Saved

This is how Caulrion addresses you in conversation.

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General & AI

How Caulrion responds and behaves.

Default Model

Choose the model Caulrion defaults to for new chats.

Ultra terms

How the Ultra model tier and its monthly limit work.

Auto-send after voice input

Automatically send the message when you stop recording. Disable to review before sending.

Show real reasoning (Pro)

Shows the model's actual reasoning in the thinking panel instead of generated phases. Advanced model only. Increases response time.

Creativity (Temperature)

Controls AI predictability: lower values are more focused, higher values are more creative.

Focused Creative
0.7

Show code rewrites as diffs

When Nova rewrites code you gave it, render the response as a unified diff with red/green lines instead of a plain code block.

Ask Caulrion response style

Normal sends quick lookups into your current chat. Sidebar opens a small side panel for things like definitions or summaries - short answers without cluttering your conversation.

Send Feedback

Tell us what's working or what isn't - we read every note.

What's New

View the latest updates and features added to Caulrion.

AI Memory

What Caulrion remembers between chats.

Memory Active
You can quickly turn memory on or off for a conversation from the + menu next to the message box. When it's on, Caulrion remembers useful details across your chats; when it's off, the current conversation won't be saved to memory.
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Reference saved memories

Let Caulrion save and use memories when responding.

Reference chat history

Let Caulrion reference recent conversations when responding.

Sidebar memory access

Let the Ask Caulrion sidebar reference your saved memories for context. Note: The sidebar can read your memories but cannot save new ones.

Voice

Speech input and read-aloud.

Customise how the AI sounds when you talk to it in any mode.

Voice per mode

Pick the voice each assistant uses. Each mode has its own provider, so voices don't cross over.

Playback

Autoplay AI responses

Let the AI speak its replies aloud automatically. Off means voice mode still listens, but you'll only see the visual response.

Speaking speed

How fast the AI talks. Only works with OpenAI voices (Caulrion, Eddy).

Keep voice replies short

Limits the AI to 3-4 sentences when speaking. Off means voice replies can run as long as text replies.

Microphone

Input device

Which microphone the AI listens through.

Permission status

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Camera

Allow camera in voice mode

Lets you show things to the AI while talking. Off by default. When on, you'll still need to tap the camera button each time you want to use it.

Voice transcripts

Auto-save voice conversations to chat

When on, every voice exchange is added to the chat history. When off, voice stays ephemeral. Use the save button to keep an exchange.

Voice memory length

How many recent voice turns the AI remembers within a conversation. Higher means better continuity but slightly slower.

6 turns

Voice commands

Voice commands let the AI take actions when you talk to it, like saving a chat, switching modes, or renaming a conversation. Destructive actions always ask you to confirm verbally and show a cancel banner.

Allow safe actions

Save messages, create new chats, switch modes, change creativity. All reversible.

Allow actions that require confirmation

Rename chats, pin chats. Each action asks you to confirm before running.

Allow destructive actions

Delete chats, forget specific memories, wipe all memories, sign out. Always asks to confirm. Off by default.

Log voice command attempts to console

Helps debug if voice commands misbehave. No data leaves your browser.

Neural Network

Caulrion's Neural Network links Home, Eddy, Nova and Artis. When something you discussed in one mode becomes relevant in another, the network surfaces it, with a clear attribution to where it came from.

Neural Network Active
Auto-capture saves conversations to your Neural Network automatically when they reach 6+ exchanges and contain substantive content. Caulrion never captures casual or single-message chats.
Auto-capture
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Appearance

Theme, type, and layout.

Current look

A live preview of your theme, background, accent and text size.

Theme

Previewing

Chat Font Size

Drag to set the chat text size anywhere from 13px to 24px.

Text size: 17px
13px24px
The quick brown fox jumps over the lazy dog.

Send button colour

Pick a preset or dial in any colour with the sliders. The arrow switches between light and dark on its own so it always stays readable.

Hue
Saturation
0%
Lightness
12%

Response Fonts

Choose the fonts Caulrion uses in its replies. Headings, subheadings and body text can each have their own font.

Chat Background

Pair a background with your theme. Scroll for more, or upload your own.

Reset theme to Bone, background to none, fonts to Default, text size to 17px and the send button colour to the theme default?

Personalisation

How Caulrion sounds and behaves for you.

Custom Personas

Craft distinct voices and identities for Caulrion. Each persona overlays the active mode with its own personality, tone and accent.

Daily Briefing

Get a summary of deadlines and active tasks at the start of your day.

Briefing Length

Choose what detail to include in your daily briefing.

Data & Storage

Your chats, exports, and archives.

Archived Chats

View and restore your archived conversations.

Archive All Chats

Archive all current conversations. They won't show in the sidebar.

Export Chat History

Download all your conversations as a secure JSON file.

Delete All Chats

Permanently wipe all conversation history for the current mode.

Data Privacy Reassurance
We respect your privacy. Your data, conversations, and files are never used to train our AI models without your explicit consent.

Account

Who you are signed in as.

Feedback

Tell us what's working or what isn't. We read every submission.

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Choose your space

Each space has its own personality, chat history, and feel. Switch anytime.

Archived Chats

Caulrion
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