Custom GPTs vs ChatGPT Projects: Here's What You Should Use

March 4, 2026 · Updated March 31, 2026 · ChatGPT

The debate over ChatGPT Projects vs Custom GPTs comes up constantly, and after using both daily for months, I have a clear recommendation.

How ChatGPT Projects vs Custom GPTs Actually Work

Most people assume these two features do the same thing. They don't.

Custom GPTs are pre-built AI assistants trained on specific instructions, files, and conversation starters. You configure them once. Every new chat starts fresh from those instructions. Projects, on the other hand, are dedicated workspaces. You group related chats, upload files, set instructions, and keep everything organized in one place. Think of GPTs as a single tool. Projects are more like a filing cabinet with a built-in assistant. Both require a paid ChatGPT plan to build. Free users can access existing GPTs from the GPT Store, and OpenAI recently opened Projects to free users too, though with heavy limitations.

ChatGPT Projects interface showing organized chats inside a project workspace — A ChatGPT Project with organized chats sorted by date, making it easy to find past conversations.

Why Projects Beat GPTs for Chat Organization

You've spent 20 minutes scrolling through the ChatGPT sidebar hunting for a conversation you had last week. That's the GPT experience. Inside a project, every chat is grouped and sorted by date. I can pull up what I discussed with a client three weeks ago in seconds. With a GPT, those chats scatter across your sidebar alongside every other conversation. There's no way to filter by GPT. You're stuck searching and hoping the title rings a bell. Projects also let you move existing chats into them. Had a great conversation in the main ChatGPT window? Click three dots, choose "add to project," and it's organized. That flexibility alone saves me time every single day.

Sharing and Accessibility: The One Area GPTs Win

Here's where Custom GPTs still have an edge. You can share a GPT publicly with a single link. Anyone on the internet can use it. There's an entire GPT Store where the community publishes and discovers custom builds. Projects? Unless you're on a Teams or Enterprise plan, you cannot share them. I use projects every day, and this is my biggest frustration with the feature. OpenAI recently added sharing for all paid plans, but it's still limited compared to the open GPT marketplace. So if your goal is distributing a custom AI tool to clients or the public, GPTs remain the only option. For everything else, keep reading.

Custom GPT configuration editor showing instructions, knowledge files, and conversation starters — The Custom GPT editor where you configure instructions, knowledge files, and conversation starters.

Advanced Features That Make Projects Superior

Custom GPTs give you web search, canvas, and image generation. That's it. Projects unlock deep research, ChatGPT agent mode, study and learn, and all the same features GPTs offer. The gap is significant. Running deep research inside a project with full context of your uploaded files produces dramatically better results than starting from scratch in a GPT. Agent mode is the real differentiator here. It lets ChatGPT take multi-step actions, browse the web, and work through complex tasks autonomously. You simply cannot access this from a custom GPT. That limitation alone makes GPTs feel outdated.

ChatGPT Projects advanced features dropdown showing deep research and agent mode options — Projects unlock deep research, agent mode, and other advanced features not available in Custom GPTs.

Memory, Files, and Knowledge Limits

Projects now support project-only memory. ChatGPT remembers context specific to that workspace without bleeding into your other conversations. GPTs have no memory at all. Every chat starts clean from the base instructions. For knowledge uploads, GPTs cap at 20 files. Projects allow 25 files on Plus and up to 40 on Enterprise. I hit that GPT ceiling fast. One client project already has 17 files uploaded, and I'm still adding to it. Both support the same AI models now. OpenAI recently updated GPTs to allow model switching, something Projects always had. That's no longer a differentiator.

What About Third-Party Connections?

GPTs technically support Actions for connecting to external APIs. But honestly, that feature is complicated to set up and mostly irrelevant now. ChatGPT's developer mode gives you access to hundreds of third-party apps through MCP connectors. Zapier, Notion, Google Sheets, Asana, and more. The catch: developer mode only works in the main ChatGPT window. Neither Projects nor GPTs can access it directly. So the third-party integration argument is a wash. Neither option wins here. Developer mode handles it separately for both.

Final Thoughts from Ryan

Custom GPTs vs ChatGPT Projects comes down to one question: do you need to share your setup publicly? If yes, use a GPT. For literally everything else, Projects are the better choice. Chat organization, memory, file limits, and access to advanced features like agent mode and deep research all favor Projects. I use them every day for client work, content creation, and personal brand management. Don't trust anyone hyping up GPTs or selling pre-built ones like they're the future. Projects have made GPTs mostly obsolete. The sooner you switch, the less time you'll waste hunting through scattered conversations and working without memory. If you're still on the free plan, upgrading to ChatGPT Plus for $20 a month unlocks the full power of Projects. That's where the real productivity gains live.

ChatGPT Projects vs Custom GPTs FAQs

Can free ChatGPT users create Projects and Custom GPTs?

Free users can now create Projects, but with heavy restrictions on features and usage limits. You can access community GPTs from the GPT Store for free but cannot build your own without a paid plan. For serious results, ChatGPT Plus at $20 per month removes those barriers.

Are Custom GPTs going away?

OpenAI hasn't announced any plans to retire Custom GPTs. They still serve a purpose for public sharing and the GPT Store. But with Projects gaining features like memory, agent mode, and better file limits, GPTs receive less attention from OpenAI's development team.

Can I use ChatGPT agent mode inside a Custom GPT?

No. Agent mode is only available inside ChatGPT Projects and the main chat window. This is one of the biggest functional gaps between the two options. If multi-step autonomous tasks matter to your workflow, Projects are the only path.

Should I migrate my Custom GPTs to Projects?

If you built a GPT for personal use, yes. Recreate those instructions as project instructions, upload the same files, and you'll gain chat organization, memory, and access to advanced features. Keep GPTs around only if you share them publicly or list them in the GPT Store.