L0NG is still learning — it may produce quirky responses. Your chats help train it!
Experimental · Open Learning AI
L0NG

An AI that gets smarter with every message you send. The more you talk, the more it learns.

Start Chatting Free API Docs
3
AI MODELS
20+
FREE MESSAGES
∞
GROWS OVER TIME
0
ACCOUNT REQUIRED
Choose your mode

Three models, one interface

Pick the speed and depth that fits your task. Switch at any time during a conversation.

Instant
L0NG Instant
Blazing fast responses using a lightweight retrieval model. Perfect for quick Q&A and casual chat.
Speed
96
Depth
40
Context
30
Try Instant
Expert · Recommended
L0NG Expert
The balanced choice. Groq-powered reasoning for complex questions with context, nuance, and step-by-step thinking.
Speed
72
Depth
80
Context
75
Try Expert
Apex · Most Capable
L0NG Apex
Maximum intelligence with deep-think reasoning. Built for hard problems: code reviews, research, and complex analysis.
Speed
45
Depth
98
Context
95
Try Apex
What L0NG can do

Built different

Features made for real conversations, not just demos.

Continuous Learning
Trains its own n-gram model on your conversations in real time, growing smarter with every message.
Web Search
Toggle Search to let L0NG pull live results before answering — great for news, prices, and current data.
Code Artifacts
Code blocks have copy buttons, live preview for HTML/SVG, and in-browser Lua execution via Fengari.
Voice Input
Press the mic button and speak. Browser-native speech recognition transcribes your words instantly.
Image Understanding
Drag, paste, or upload an image. L0NG will describe, analyze, or answer questions about what it sees.
Shared Rooms
Create a live WebSocket room and invite anyone. Multiple people can talk with L0NG simultaneously.

Join the experiment

Sign in to unlock 50 messages per session and help L0NG learn faster. Every conversation makes it smarter.

50 messages / session
Priority model access
Help train the model