Cursor vs Supermaven: Full AI Editor vs Ultra-Fast Autocomplete

Cursor and Supermaven are, on paper, in the same category: AI coding tools for developers. But they serve different parts of the workflow, and the choice between them is not always about which one is better. For a lot of developers, the real question is whether they need one, the other, or both.

What they actually do

Cursor is a full code editor. You replace VS Code (or whatever you were using) with Cursor, and you get an AI-native environment: custom Tab completion, a persistent chat sidebar, Composer mode for describing multi-file changes, and Agent mode for autonomous multi-step tasks. The entire product is built around the idea that the editor should actively help you ship code, not just answer questions about it.

Supermaven is a plugin that adds autocomplete to your existing editor. Install it in VS Code, JetBrains, or Neovim, and it starts offering completions as you type. The completions are fast, a lot faster than Copilot or most alternatives. The Pro tier adds a 1 million token context window so the model has visibility into your entire codebase when generating suggestions. There is also a chat panel for quick questions. But the core value is the autocomplete speed and quality.

Both tools have Anysphere behind them. Supermaven was acquired by Anysphere in late 2024, and the company has indicated that Supermaven's speed and context technology will eventually be incorporated into Cursor's completion engine. For now, they remain separate products with separate pricing.

The speed story

250ms is the figure Supermaven cites for median suggestion latency. That is fast enough that completions appear before you register their absence. Most competing tools, including earlier versions of Cursor's Tab and GitHub Copilot, run at 600ms to 1 second. That difference sounds small but in practice, a tool that takes a full second to suggest a completion feels like it is lagging; a tool that takes 250ms feels instantaneous.

Cursor's Tab completion has improved significantly since launch and is now competitive with most tools on speed. Whether it matches Supermaven's median latency depends on the task and the machine. Developers who have used both generally report Supermaven feels faster under sustained fast-typing conditions.

Cursor's agentic edge

This is where Cursor pulls meaningfully ahead for a certain type of developer. Cursor's Agent mode lets you describe a task in natural language and have Cursor work through it: reading relevant files, proposing changes across multiple files, running tests, and iterating until the task is done or you intervene. This is a qualitatively different kind of assistance from autocomplete.

Examples of Agent mode tasks Cursor handles well:

• "Add input validation to all form components in this project"
• "Refactor the authentication module to use the new token format"
• "Write tests for the functions in services/payment.ts that are currently untested"

Supermaven does not offer this. Its AI assistance stays in the completion and chat lanes. If agentic, multi-step task execution is something you reach for regularly, Cursor has a capability that Supermaven simply does not.

Context window: 1 million tokens in practice

Supermaven Pro's 1 million token context window is its most distinctive technical specification. In practical terms, it means the model generating completions has seen your entire codebase when making suggestions, not just the 100 lines around the cursor.

This shows up in situations where completions need to reflect distant parts of the codebase: using an internal utility function you wrote months ago, matching the naming convention used throughout a module, or following a pattern established in a file the model has not seen locally. Standard context windows miss these. Supermaven's 1M window captures them.

Cursor also uses project-wide context for its chat and agent features, but its Tab completion context window is smaller than 1M tokens. The practical difference in day-to-day completions depends on your codebase size.

IDE compatibility

Cursor runs only as the Cursor application, which is a fork of VS Code. It does not have a JetBrains plugin. If you or your team use IntelliJ IDEA, PyCharm, WebStorm, Rider, or any other JetBrains IDE, Cursor is not a drop-in addition to your existing workflow. It is a different editor.

Supermaven supports VS Code, JetBrains, and Neovim. This makes it usable for teams with mixed editor preferences, or for individual developers who prefer JetBrains but want better AI completions.

Pricing comparison

Supermaven Pro at $10/month is notably cheaper than Cursor Pro at $20/month. For developers who want only an improved autocomplete experience, Supermaven is the lower-cost path.

Using both

Because Anysphere owns both products, using them simultaneously within the same editor is not well-supported and creates conflicting suggestion systems. However, some developers use Supermaven in JetBrains for certain projects and Cursor on VS Code for others, getting the best of Supermaven's speed in one environment and Cursor's agent capabilities in another.

A simpler combined approach: Supermaven Pro ($10/month) for everyday completions in VS Code or JetBrains, and Claude Code or another terminal agent for agentic work, without paying for Cursor at all.

Who should choose Cursor

Cursor is the better choice if:

You primarily work in VS Code and want a single tool that handles both fast completions and agentic task execution. Cursor's Pro tier at $20/month gives you both without separate subscriptions.

You regularly tackle multi-file refactors, test generation, or other tasks that benefit from an AI that can read and write across the codebase autonomously. Agent mode is Cursor's most differentiated feature.

You want Composer mode for describing changes in natural language and having them applied across multiple files. Supermaven does not offer an equivalent.

Who should choose Supermaven

Supermaven is the better choice if:

You are primarily optimizing autocomplete speed and quality, and agentic features are not part of your workflow.

You use JetBrains IDEs and do not want to switch editors. Supermaven is one of the better options for AI-powered completions in IntelliJ or PyCharm.

You want a cheaper option for a specific capability. At $10/month, Supermaven Pro is exactly half the price of Cursor Pro, and the free tier is functional for evaluation.

You work on a large codebase and want completions that account for the whole project. The 1M token context window is a real differentiator for large codebases.

The bottom line

Cursor is the more powerful product for developers who want AI deeply integrated into every layer of the editing experience, including autonomous task execution. Supermaven is the cleaner choice for developers who want the fastest possible autocomplete without paying for capabilities they do not use.

For related comparisons, see Cursor vs Windsurf for another full AI editor comparison, GitHub Copilot vs Supermaven for how Supermaven compares to the market incumbent, and Codeium vs Supermaven for a free-vs-paid autocomplete breakdown.