Supermaven

» see supermaven.com as it lived, on the wayback machine

~ the last words ~

The Supermaven blog has nine posts on it. The first is dated 22 February 2024 and introduces the product. The last is dated 21 November 2025 and ends it. Everything the company ever said in public fits between those two dates, and the whole of it takes about fifteen minutes to read. Twelve million dollars of venture funding does not usually leave a record that short.

What it sold was autocomplete. Jacob Jackson had built Tabnine years earlier, back when machine-generated code completion was a curiosity rather than an industry, and Supermaven was his second run at the same problem with much better materials. The model was called Babble. The selling point was context: 300,000 tokens at launch, enough to hold a real codebase in working memory rather than the file you happened to have open, and a million tokens by the 1.0 release in July. The homepage claimed it was the fastest copilot available and spent most of its space proving the claim with an animated editor.

I have no stake in this one. Autocomplete that writes the next three lines for you is a tool I have opinions about and no nostalgia for, and in 2024 the category was churning so fast that products were being bought and folded before most people had finished evaluating them. Supermaven is in here because of how cleanly it demonstrates the shape of that churn, from first post to last in twenty-one months.

~ the record ~

~ the early days ~

The middle of 2024 was busy. JetBrains support arrived on 2 April and a free tier two days later. Chat came in June, then the 1.0 release with the million-token window on 2 July. In April the company also published an essay called "No, we won't be replaced by AI", arguing that an experienced programmer's judgment was not the thing being automated. That is a confident position to take while selling software that automates part of the job. On 16 September it announced twelve million dollars led by Bessemer under the headline "We raised $12M to build a text editor".

~ the sale ~

Eight weeks after announcing that it was going to build a text editor, Supermaven joined one. The post went up on 12 November 2024 under the title "Supermaven joins Cursor", and the arrangement was the familiar one: the team moved to Anysphere and the technology moved into Cursor Tab, while the standalone product stayed alive in a maintenance sense with its reason for existing transplanted elsewhere. The price was never disclosed.

For a year it sat there. The extensions kept working and subscriptions kept renewing. The blog published nothing at all for twelve months, and in hindsight that silence was the announcement. Cursor's inline completion got conspicuously faster during that year, and the thing making it faster was the model that used to have its own website.

~ the sunset ~

The closing post is four bullet points long and it is unusually decent about the money. Existing users were fully refunded the same day for remaining subscription time, prorated. VS Code users were pointed at Cursor. Agent conversations, added late and barely used, were dropped outright. The one concession is the interesting part: Neovim and JetBrains customers wrote in to say they wanted to keep the thing, and the company agreed to keep serving them free autocomplete inference "for the foreseeable future", so a piece of Supermaven is still quietly answering requests for a few hundred people who refused to move.

~ the next chapter ~

This is the gentlest version of a startup death and it should still be filed as one. Nobody was stranded and the refunds went out before anyone had to ask. The engineering survived inside a product used by far more people than Supermaven ever reached. The name is what died. Cursor Tab does not credit it on the tin, and in a year or two the fact that the fast completion came from somewhere else will be a piece of trivia rather than a thing anyone remembers.

Supermaven.com is still up, still offering a download, still describing a 2024 product in the present tense. The domain had a previous life too. The Internet Archive holds a capture of a completely unrelated supermaven.com from December 2002, two decades before the company that made this one existed.

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