Features

Features are what make just4o.chat more than a chat interface. Importing chats brings your existing conversations in, memory that learns you, projects that isolate context, personas that keep a consistent voice, and files that give the model something to search. Choose a topic to explore.

Browse topics

Canvas

In-chat editor for text and document work, backed by Just4o.chat Files.

Web Search

Real-time web search in chat. Toggle on for GPT, Claude, Gemini, or Grok-4 to pull live results.

Image Generation

Universal image gen tool. One interface, multiple models—GPT, Gemini, Grok. Pricing per tier.

Importing Chats

Bring ChatGPT conversations into just4o.chat. Style RAG for tone matching in new chats.

Memory

Adaptive Retrieval-Augmented Generation Memory and Automatic Memory Management.

Projects

Sandboxed workspaces with their own chats, memories, and files. Keep work and life separate.

Personas

Custom characters with voice and memories. Attach the same persona to any chat—global or project.

Just4o.chat Files

Central file hub for uploads and AI generations. RAG retrieval, limits by tier.

Greetings

Short, warm greetings when you open a new chat. Timezone-aware and optionally memory-informed.

Referrals

Earn premium credits by posting about just4o.chat. 100 credits per verified link.