A turbulent few weeks for the AI safety-focused lab revealed its secret roadmap accidentally.
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By: myai4.com | April 2026
A Source Code Leak That Exposed Everything
Anthropic had a week it would rather forget. The company accidentally leaked the
source code for its popular coding tool, Claude Code, exposing nearly 500,000 lines of code across approximately 1,900 files. A debugging file was mistakenly bundled into a routine software update and pushed to a public registry where developers discovered it within hours, and the codebase quickly spread across GitHub.
Anthropic confirmed the incident but stressed that no sensitive customer data or credentials were exposed. "This was a release packaging issue caused by human error, not a security breach," a spokesperson said. While the company moved swiftly to contain the damage, the leak had an unintended consequence: it handed competitors and the developer community a detailed look at Anthropic's internal architecture and product roadmap.
Mythos and Capybara: The Next Generation of Claude
Days before the code leak, a separate incident had already rattled the company. A misconfiguration exposed a draft blog post describing a powerful new model known internally as both "Mythos" and "Capybara." The post described it as a "qualitative leap" in AI, with significant advances in reasoning, coding, and cybersecurity and also flagged that it "poses unprecedented cybersecurity risks."
Anthropic has since confirmed the model's existence, and is reportedly briefing senior government officials about the potential for Mythos to make large scale cyberattacks significantly more likely in 2026. The leaked source code also revealed the existence of other models in development: a Claude 4.6 variant internally called "Capybara," an "Opus 4.6" codenamed "Fennec," and another called "Numbat."
The leaked code also exposed unreleased features, including a persistent background assistant that keeps working even when the user is idle, the ability for Claude to review past sessions to improve over time, and remote control of Claude Code from a phone or browser.
IPO on the Horizon and Enterprise Push
Despite the turbulence, Anthropic's business fundamentals are strong. Claude Code's run-rate revenue had surpassed $2.5 billion as of February 2026, remarkable for a developer tool launched just over a year ago. The company also invested $100 million into its Claude Partner Network and opened a new office in Sydney, its fourth location in the Asia-Pacific region.
And on the financial front, Bloomberg reported that Anthropic is considering going public as early as October 2026, with the company already in early discussions with Wall Street banks about leading roles on a potential listing, putting it in a direct IPO race with OpenAI.
Bottom line: Anthropic's accidental transparency revealed more about its future than any press release could. A next-generation model with unprecedented capabilities, a potential IPO, and a growing enterprise business make this one of the most closely watched companies in AI right now.
*Note: Article produced with AI assistance (Claude by Anthropic)