Anthropic Acquires Stainless: AI Development Tools Startup

34.4% of American businesses now use Anthropic's Claude, surpassing OpenAI's ChatGPT adoption rate for the first time, according to the May 2026 release of the Ramp AI Index.

AI Development Tools Landscape

The recent acquisition of Stainless, a New York-based startup, by Anthropic marks a significant shift in the AI development tools landscape. Stainless, founded in 2022, rose to prominence in the emerging AI industry for automating the creation and maintenance of software development kits (SDKs) — the libraries developers use to interact with APIs. This move is expected to further strengthen Anthropic's position in the market, with 32.3% of businesses currently using OpenAI's ChatGPT.

Market Trends

• The overall AI adoption rate among businesses has risen to 50.6%, indicating a growing demand for AI-powered solutions.
• 3.8% increase in Anthropic's adoption rate in April, outpacing OpenAI's 2.9% decline.
• The integration of Anthropic's Claude and OpenAI's Codex into Apple's Xcode 26.3 is expected to drive the adoption of AI-powered development tools, with 100+ startups participating in the Google for Startups Gemini Startup Forum in June.

According to VentureBeat, the crossover marks a significant milestone in the AI race, with Anthropic finally beating OpenAI in business AI adoption.

What the Sceptics Say

Some critics argue that the increasing reliance on AI development tools may lead to a loss of traditional programming skills, potentially creating a skills gap in the industry. Additionally, the security risks associated with AI-powered tools, such as the recent supply-chain attack on Daemon Tools, may undermine the benefits of these technologies.

What This Means for the Industry

The acquisition of Stainless by Anthropic is expected to drive innovation in the AI development tools space, with companies like Google, Cloudflare, and Apple likely to invest heavily in these technologies. In the next 6-12 months, we can expect to see significant advancements in AI-powered development tools, including the integration of Anthropic's Claude and OpenAI's Codex into more development platforms.

Key Takeaways

1. Engineers: Focus on developing skills in AI-powered development tools, such as Anthropic's Claude and OpenAI's Codex, to stay competitive in the job market.
2. Investors: Invest in startups developing AI-powered development tools, such as Stainless, to capitalize on the growing demand for these technologies.
3. Business Leaders: Adopt AI-powered development tools to improve efficiency and reduce costs, but also prioritize the development of traditional programming skills to mitigate potential risks.
4. Consumers: Expect to see improved user experiences and more efficient services as businesses adopt AI-powered development tools.

Sources

• TechCrunch: Anthropic has acquired the dev tools startup used by OpenAI, Google, and Cloudflare
• VentureBeat: Anthropic finally beat OpenAI in business AI adoption — but 3 big threats could erase its lead
• VentureBeat: Apple integrates Anthropic’s Claude and OpenAI’s Codex into Xcode 26.3 in push for ‘agentic coding’
• Google Blog: Meet the 100+ startups joining our second Google for Startups Gemini Startup Forum

As the AI development tools landscape continues to evolve, engineers should focus on developing skills in AI-powered development tools, investors should invest in startups developing these technologies, and business leaders should adopt AI-powered development tools while prioritizing traditional programming skills.