Supermaven review — The Jouster's take 2026

The Essentials in 20 Seconds

AI autocomplete with a 300,000-token context window — largest on the market
Pricing: free (Free), €9/mo (Pro)
Joute score: 7.5/10
Obsolescence risk: 5/10
Who it's for: developers on large codebases who find Copilot lacks context

Verdict: Supermaven does one thing — autocomplete with a lot of context — and does it well. It's not a full assistant.

What is Supermaven

Supermaven is an autocomplete extension founded by Jacob Jackson, one of the original creators of GitHub Copilot. The pitch is one line: a 300,000-token context window for autocomplete, where Copilot or Codeium cap out at a few thousand.

In practice, Supermaven sees a lot more surrounding code before making a suggestion. On projects with complex cross-file dependencies, that can make a real difference.

What Works

The context window

The unique argument is real. On a complex codebase where patterns are spread across dozens of files, Supermaven ships completions that are more consistent with the project's style and structure.

Speed

Suggestions come fast, with low latency. No noticeable IDE slowdown.

Free tier

The Free plan with 300,000 tokens of context is available for open source projects and limited individual use.

What Doesn't Work

No chat, no agent

Supermaven only does autocomplete. No chat in the IDE, no agent that edits files, no test generation. For a full workflow, you need to pair it with something else.

One differentiator

If the context window is its only argument, and Cursor or Copilot extend theirs, Supermaven loses its reason to exist. The risk is structural.

Limited ecosystem

No agent, no advanced features, sparse integration docs. The product is simple by design — which makes it limiting fast.

Comparison Table

Tool	Score	Price/mo	Context	Chat	Agent
Supermaven	7.5/10	€9	300K tokens	No	No
GitHub Copilot	8.6/10	€9	~8K tokens	Yes	Medium
Cursor	9.1/10	€18	~100K tokens	Yes	Excellent
Codeium	7.8/10	€0	~16K tokens	Yes	No

Pricing

Free: free, limited usage
Pro: €9/mo, unlimited usage
Enterprise: custom pricing

Who It's For

Yes: developers on very large codebases who struggle with Copilot's lack of context. As a complement to an existing chat/agent tool.

No: anyone looking for a full assistant with chat and agent. As a standalone primary tool, too much is missing.

Karpathy Obsolescence Risk

Score: 5/10. The extended context window is the only differentiator. Cursor and others are gradually extending theirs. In 12-18 months, the advantage may disappear. Risky to build your core workflow around.

Final Verdict

Supermaven is a niche tool that does its job well. For a developer on a large codebase who pairs Supermaven with another tool for chat, it can be worth €9/mo. As a standalone tool, it's missing too much.

Joute score: 7.5/10.

FAQ

Does Supermaven replace GitHub Copilot?

Not fully. It beats Copilot on context but has no chat or agent. Both can be used together.

What's the real difference vs. Copilot?

The context window: 300,000 tokens vs. a few thousand for standard Copilot. On large projects, suggestions are more coherent.

Is Supermaven available in JetBrains?

Primarily VS Code. Check the site for JetBrains support status in 2026.

Sources

Supermaven official site - verified May 2026

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