Can You Use a ChatGPT Subscription in Cursor?
A ChatGPT subscription and Cursor are billed separately. Here is why, what Cursor includes in its own AI plans, and how to keep your project context when you move between coding assistants.
Updated 6 min read
No: a ChatGPT subscription does not give you free or reduced-price AI usage in Cursor. The two products are billed independently. Cursor is a code editor built by Anysphere; it charges for its own plans that include AI model access. ChatGPT is OpenAI's conversational product; a subscription there gives you access to ChatGPT's web and mobile apps, not to third-party tools. If you use both, you pay for both. Tools like fenbs help preserve your project context so switching between them does not mean starting your work over.
This confusion is common because both Cursor and ChatGPT use OpenAI models under the hood, and both have paid tiers. But using one does not reduce the cost of the other, and the accounts are entirely separate. The agent harness topic covers more on how AI tools connect and bill for model access.
What Cursor is and how it bills for AI
Cursor is an AI-powered code editor. It includes features like inline chat, code generation and an agent mode, all powered by large language models. Cursor pays its own API costs to model providers and passes that access to subscribers through its own plans. When you subscribe to Cursor, you are paying for the editor and the AI usage that comes with it.
For current plan details and usage limits, check cursor.com (opens in a new tab) directly, as these change. What does not change is the separation: Cursor handles its own billing with its own model providers. Your ChatGPT account plays no part in that.
What a ChatGPT subscription gives you
A ChatGPT subscription (Plus, Team, Enterprise or equivalent) gives you access to ChatGPT's web app, the mobile apps and the features within those products. It does not include API credits. API access is a separate product at platform.openai.com (opens in a new tab), billed by usage, not by subscription tier.
This distinction matters because third-party tools like Cursor do not use your ChatGPT subscription at all. They use the API, billed to accounts those tools control, or to an API key you provide yourself. A subscription and an API key are different things even when both come from OpenAI.
Why the two accounts are separate
OpenAI built its subscription products and its API as separate offerings with separate authentication. A ChatGPT subscription authenticates you on ChatGPT.com and OpenAI's apps. An API key authenticates a developer integration. The two do not share quotas or billing.
Cursor is one of many tools that integrate with AI model providers through the API. It has its own relationship with OpenAI (and with Anthropic, for Claude models) that is independent of any end user's ChatGPT account. Even if you subscribe to ChatGPT Plus and Cursor on the same day, each bill separately and neither knows about the other.
Using your own API key in Cursor
Cursor does allow you to bring your own API key from OpenAI or Anthropic. This means the model calls are billed to your own API account instead of Cursor's usage allowance. Some users do this to use a specific model version or to avoid Cursor's usage caps.
An API key is not the same as a ChatGPT subscription. When you add an OpenAI API key to Cursor, you are connecting it to your API account, which is usage-based. You will be charged for the tokens you use through that API account. A ChatGPT Plus subscription does not generate API credits; the two balances are separate even if they appear on the same OpenAI billing page.
Questions about what ChatGPT subscriptions cover and how they differ across plans are answered on OpenAI's own help pages at help.openai.com (opens in a new tab). The ChatGPT subscription price and plans guide also covers the current tiers.
How Cursor compares to ChatGPT for coding work
Cursor and ChatGPT serve different primary purposes. Cursor is a code editor with AI built into the editing workflow: autocomplete, inline suggestions and an agent that can make multi-file edits. ChatGPT is a conversational assistant that you can ask coding questions, but it works outside your editor. Many developers use both: Cursor for editing inside a project, ChatGPT for research, explanations and drafting.
For a direct feature comparison, see what is Cursor AI. For how Cursor and GitHub Copilot differ, Copilot vs ChatGPT covers some of the same territory. If you are evaluating coding assistants more broadly, ChatGPT alternatives and Claude vs ChatGPT cover other options. Similarly, questions about using a ChatGPT subscription with other AI coding tools are covered in their own guides.
Keeping project context when you switch between tools
Using more than one AI tool for a project creates a practical problem: each one starts from zero unless you explain the context again. The decisions you recorded in a ChatGPT conversation are not visible in Cursor, and vice versa. If you switch tools mid-project, that history stays behind.
The answer is to keep project context somewhere that all your tools can read, separate from any one chat history. That means decisions, rules, task state and where things were left, stored outside the AI apps themselves.
Keep your project context when you move between coding tools
fenbs connects over MCP to Cursor, ChatGPT and other supported AI apps. At the start of a session, your assistant reads the Rules, Where we left off and current tasks, so it starts with the same context regardless of which tool you opened. Before switching, ask your assistant to save progress. The next tool, on the next session, picks up from there without you re-explaining the project.
Create a free accountFree for one person · No credit card · Works with Claude, ChatGPT, Cursor and more
How to do this with fenbs
- Create a free account and add your project. Write a goal, add the active tasks and record any decisions that should apply in every session.
- Connect Cursor over MCP from Integrations. The guide walks you through the setup; you approve access through a browser sign-in.
- At the start of each Cursor session, ask it to read the fenbs context: Rules, Where we left off and the current tasks.
- When you switch to ChatGPT or another supported tool, connect it to the same fenbs project from Integrations. It reads the same record.
- Before ending any session, ask the assistant to save progress. The next session, in any connected tool, starts from what the last one saved.
fenbs does not import ChatGPT chat history or Cursor's conversation logs. It holds the structured work record: decisions, task state and where things were left. That record travels with the project, not with any one AI tool.