AI Dev Weekly is a new Thursday series where I cover the week’s most important AI developer news — with my take as someone who actually uses these tools daily.
Two stories dominated this week, and they’re connected in a way that tells you everything about where AI coding tools are headed.
Claude Code is now the #1 AI coding tool
The Pragmatic Engineer published their 2026 AI Tooling Survey results this week, surveying nearly 1,000 software engineers. The headline: Claude Code — which only launched in May 2025 — is already the most-used AI coding tool, overtaking both GitHub Copilot and Cursor in just eight months.
Some numbers that stood out:
- 95% of respondents use AI tools at least weekly
- 75% use AI for half or more of their engineering work
- 56% do 70%+ of their work with AI
- 46% named Claude Code as the tool they love most (Cursor: 19%, Copilot: 9%)
- 75% of developers at small companies use Claude Code as their primary tool
The company size split is interesting. Small teams overwhelmingly pick Claude Code. Large enterprises default to GitHub Copilot — likely because of Microsoft’s enterprise sales machine, not because engineers prefer it. Cursor is growing fast too, up 35% in mentions since the last survey nine months ago.
My take: I’m not surprised. Claude Code runs in your terminal, works with any editor, and has a 1M token context window. It doesn’t force you into a specific IDE. That flexibility is exactly what experienced developers want. It’s also why Claude Code is next on my I Used It for a Week review list.
The survey also found that 55% of developers now regularly use AI agents — and agent users are nearly twice as likely to feel positive about AI as non-users. If you’re still skeptical about AI coding tools, the data suggests you might just not have found the right one yet.
Musk poaches Cursor engineers as xAI implodes
While Claude Code was being crowned, things were falling apart at xAI.
On Wednesday, two senior product engineers — Andrew Milich and Jason Ginsberg — announced they’re leaving Cursor to join xAI/SpaceX, reporting directly to Elon Musk. These aren’t random hires. They helped scale Cursor to $2 billion in annualized revenue.
The timing is telling. Reuters and the Financial Times reported on Friday that Musk has ordered sweeping layoffs at xAI after becoming frustrated with the company’s lack of progress on AI coding tools. He brought in “fixers” from Tesla and SpaceX to audit the team. Nine of eleven original xAI co-founders have now left. Researchers are citing burnout from Musk’s “extremely hardcore” work demands.
Musk himself publicly apologized for how xAI was built, admitting that qualified candidates had been rejected or never even interviewed.
My take: This is what happens when you try to compete in AI coding tools without respecting the craft. Cursor, Claude Code, and Copilot were built by people who deeply understand developer workflows. You can’t just throw money and Grok at the problem. Poaching two engineers from Cursor is a start, but rebuilding an entire coding infrastructure while your co-founders are walking out the door? That’s a tough sell — especially with a SpaceX IPO looming at a $1.25 trillion valuation.
The broader lesson: the AI coding tool market is consolidating fast. Claude Code and Cursor are pulling away. Everyone else is scrambling to keep up.
Quick hits
- OpenAI’s Codex is seeing explosive early growth — already at 60% of Cursor’s usage despite being newer. One to watch.
- Antigravity, Google’s new agentic IDE (built by the team they acqui-hired from Windsurf), is gaining traction at ~10% usage across all company sizes.
- 70% of developers now juggle 2-4 AI tools simultaneously. The “one tool to rule them all” era hasn’t arrived yet.
- Staff+ engineers are the heaviest AI agent users at 63.5% — more than engineering managers (46%) or directors (52%).
Why this matters for you
If you’re still using just one AI tool, you’re probably leaving productivity on the table. The survey data is clear: most developers use multiple tools for different tasks. My own stack is Cursor for daily coding, ChatGPT for thinking through problems, and I’m about to add Claude Code to the mix.
The market is moving fast. Tools that were dominant six months ago are being overtaken. The best strategy: stay flexible, keep experimenting, and don’t lock yourself into one ecosystem.
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