Eight months. That is how long it took Claude Code to go from a new terminal experiment to the second-most-used AI coding tool among professional developers worldwide.
JetBrains published the results of its second AI Pulse survey this month — 10,000+ professional developers across eight languages, surveyed in January 2026. The numbers are striking, and not just for Anthropic. They signal where the professional coding tool market is heading.
The Headline Numbers#
In January 2026, 90% of developers regularly used at least one AI tool at work for coding tasks. That number was unthinkable two years ago. Today it is a baseline.
Within that majority, here is how the specialized AI coding tools rank by work adoption:
- GitHub Copilot: 29% (most widely used, 76% brand awareness)
- Claude Code: 18% (second place, tied with Cursor)
- Cursor: 18% (second place, tied with Claude Code)
Claude Code launched in May 2025. In April–June 2025, it had roughly 3% work adoption. By September 2025, that was up to around 12%. By January 2026: 18%. That is a 6x increase in eight months.
In the US and Canada specifically, Claude Code’s work adoption reaches 24% — suggesting the professional developer market in North America is already well past early-adopter territory.
The Satisfaction Story Is Even Better#
Market share is one thing. What developers think of a tool once they use it is another.
Claude Code has the highest product loyalty metrics in the industry:
- CSAT (satisfaction): 91%
- NPS (likelihood to recommend): 54 (scale: -100 to +100)
For context: an NPS above 50 is considered excellent in any software category. GitHub Copilot, which has been shipping since 2021 and has spent years iterating with the world’s largest developer community, cannot match these numbers. Neither can Cursor, despite its significant engineering investment and $50 billion valuation.
The Pragmatic Engineer ran a separate survey of 906 software engineers in February 2026. Claude Code earned a 46% “most loved” rating — the highest of any tool in the survey.
These satisfaction scores matter because they predict trajectory. High NPS tools grow through word-of-mouth in engineering teams. When one developer on a team adopts Claude Code and their productivity visibly changes, others follow. That dynamic is already playing out in the adoption data.
The Awareness Gap Is a Growth Pipeline#
Here is the number most people are overlooking: 57% of developers worldwide have heard of Claude Code. But only 18% use it at work.
That gap — 39 percentage points — represents the next wave of adoption. These are developers who are aware of Claude Code but haven’t yet switched. Some are waiting for enterprise procurement. Some are comfortable with their current tool. Some are skeptical. But the awareness is there.
Compare this to GitHub Copilot’s 76% awareness and 29% adoption — a 47-point gap. Even the incumbent has a large pool of aware-but-not-using developers.
Claude Code’s awareness number has itself grown fast: 31% in April–June 2025, 49% in September 2025, 57% in January 2026. The product is still gaining cultural traction.
Why the Growth Is Different#
GitHub Copilot and Cursor both grew through distribution — Copilot via GitHub’s integration across millions of repositories, Cursor via replacing VS Code for a developer audience already living in editors. Those are powerful vectors.
Claude Code grew through word-of-mouth from developers who experienced what an agentic, terminal-native workflow actually does to their output. There is no bundling play here. Developers are choosing it because it changes the job, not because it was included in a tool they already use.
That distinction matters for understanding the satisfaction scores. Copilot users include millions of developers who installed it because it was convenient or free through a GitHub subscription. Claude Code users overwhelmingly chose it deliberately, which inflates satisfaction metrics somewhat — but the 91% CSAT suggests even deliberate early adopters are finding it delivers on its promise.
SemiAnalysis estimates that Claude Code now accounts for roughly 4% of all public GitHub commits as of March 2026, with projections suggesting 20% by year-end. If those projections are directionally correct, the adoption chart does not flatten — it accelerates.
What GitHub Copilot’s Lead Actually Means#
GitHub Copilot’s 29% adoption and 76% awareness reflect five years of distribution dominance. It is baked into GitHub. It ships with Visual Studio. It has enterprise procurement relationships with thousands of companies. Those are real moats.
But moats built on distribution erode when the productivity gap between tools becomes obvious to decision-makers. The JetBrains survey doesn’t publish Copilot’s NPS directly, but the qualitative data is clear: experienced developers cite Copilot as convenient and adequate. Claude Code users describe it as transformative.
“Adequate” loses to “transformative” when the market matures and developers have budget and choice.
The Cursor Comparison#
Tying Cursor at 18% is noteworthy. Cursor spent 2025 building an extraordinary user base through a VS Code replacement strategy — same interface, better AI. It executed well. Its $50 billion valuation reflects real traction.
But Claude Code achieved the same work adoption number with a fundamentally different paradigm. No IDE to learn. No extension to install. Just a terminal agent that operates autonomously.
The implication: the segment of developers who want autonomous, agentic workflows is at least as large as the segment that wants a smarter IDE. Both are real markets. But only one of those markets is growing into a paradigm that scales beyond human-in-the-loop code suggestions.
The Path from Here#
The JetBrains data suggests we are in the middle innings of a market reshuffling, not the end. Claude Code’s trajectory — 3% to 18% in eight months, with 57% awareness and a 91% CSAT — points toward continued share gains.
The question for the rest of 2026 is whether enterprise procurement cycles can keep up with grassroots developer adoption. Developers want it. Their employers are still writing purchase orders for Copilot enterprise licenses bought 18 months ago.
When those contracts come up for renewal, they will be renewing against a tool that their developers are already using at home, already love, and will advocate loudly for.
That is what a 54 NPS looks like in action.
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