Features
Updated on May 15, 2026
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.
Features
Pricing
Tier limits, content-length multiplier, and per-tier benefits.
Scopes of Data
Global, project, and persona scope keep your context clean. Learn how data stays isolated across chats.
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.
Models
GPT, Claude, Gemini, Grok—pick the right model per turn. Provider strengths and model families.
Memory
Adaptive Retrieval-Augmented Generation Memory, toggleable foreground tools, and the Background Memory Agent (depreciated).
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.