The VS Code extension did more than make Claude Code easier to use. It put Anthropic inside the editor where developers already spend their day, and that was the turn.
There is a version of Anthropic that stayed a respected AI safety lab with a capable model and a smaller developer following. That version is gone. The reason is plain: Claude Code stopped asking developers to come to it and started showing up where they already worked.
The origin story checks out, but it is less grand than the growth curve now makes it look. Boris Cherny, a former Meta engineer who is now head of Claude Code at Anthropic, joined the company in September 2024, according to The Pragmatic Engineer. He began with terminal experiments and an AppleScript demo that could inspect and change what music was playing. By November, The Pragmatic Engineer reported, more than half of Anthropic's own engineers were using the tool every day. Anthropic launched Claude Code publicly in February 2025 alongside Claude 3.7 Sonnet.
It was not smooth. It was a command-line product. You had to want it, find it, install it, and change your working pattern around it. Developers will do that for tools they already trust, but friction is still friction.
Then came VS Code.
The editor was the distribution channel
Visual Studio Code is not just popular. It is the default room for a huge share of modern software work. Stack Overflow's 2025 Developer Survey put VS Code at 75.9% usage among development environments, the highest share in the survey and its ninth straight year in first place. Microsoft told investors in its fiscal 2025 third-quarter call that Visual Studio and VS Code together had more than 50 million monthly active users.
When Anthropic introduced a native Claude Code extension on September 29, 2025, as part of the Claude Code 2.0 release, it was not just adding a wrapper around a terminal tool. Anthropic's own announcement said the extension brought Claude Code directly into the IDE, with a sidebar panel and real-time inline diffs. Its docs now describe plan review, auto-accepted edits, file mentions, conversation history, and multiple conversations in separate tabs or windows.
That is a huge difference. A terminal asks for a habit. A plugin asks for a click.
You can see why the adoption story changed after that. Developers who had ignored the CLI could now treat Claude Code as another part of the editor, closer to GitLens or a language extension than a separate product they had to remember to open. Here is the thing: distribution is not an afterthought in developer tools. It decides whether a capable product becomes daily behavior or just another tab in a backlog of things to try.
The numbers got very hard to ignore
The growth since then is why this story still matters in July 2026. According to figures from SemiAnalysis that have been picked up by developer-tool trackers, Claude Code was tied to roughly 135,000 public GitHub commits a day in early February 2026, about 4% of the total public commit stream. A single day in March was reported at 326,731 commits. Those figures should be treated as public-GitHub indicators, not a perfect map of all software work, but they tell you enough.
Anthropic's business moved just as quickly. The company said in May 2026 that its run-rate revenue had crossed $47 billion, up from roughly $1 billion in late 2024. It raised $65 billion in a Series H round at a $965 billion post-money valuation on May 28, 2026, then confidentially filed for an IPO on June 1, according to the company and reporting from Fortune and TechCrunch. Earlier, Anthropic had raised $3.5 billion at a $61.5 billion valuation in March 2025 and $30 billion at a $380 billion valuation in February 2026.
Those are not normal startup numbers. Frankly, they are the kind of numbers that make every neat product narrative sound too tidy. Claude Code did not create all of Anthropic's growth by itself. Claude, enterprise demand, compute deals, safety positioning, and the broader AI spending boom all sit underneath the valuation. But Claude Code gave Anthropic something it badly needed: a product developers talked about because they were actually using it.
Fortune reported in January 2026 that Claude Code had sparked excitement rarely seen since ChatGPT's debut. The same report said Cherny named Uber, Netflix, Spotify, Salesforce, Accenture, and Snowflake as users. Anthropic has also published customer work with Spotify, including a July 2025 integration of the Claude Agent SDK that the company says now generates more than 650 merged pull requests a month at Spotify.
The current infrastructure story is getting bigger, not smaller. Five days ago, the Financial Times reported that AMD plans to invest up to $5 billion in Anthropic as part of a chip and infrastructure agreement, with Anthropic set to buy large volumes of AMD AI server chips. Compute is now the other half of this story. The product won developer attention, but the company has to keep buying the machinery that lets those agents run.
Microsoft did not build Claude Code. Satya Nadella did not set out to make Anthropic a developer phenomenon. But VS Code gave Anthropic the surface area it needed, at the exact moment AI coding tools were shifting from novelty to workflow. Without that installed base, the extension architecture, and the developer reflex of searching the Marketplace for a new capability, Claude Code would still be compelling. It would also be easier to ignore.
That deserves to be said plainly. Anthropic's breakout was not only a model story. It was a distribution story, and the quiet platform underneath it was VS Code.
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