A detailed feature comparison of OpenAI Codex, Anthropic Claude Code, and OpenCode - the three terminal-based AI coding agents competing to become every developer's default tool.
Developers on Anthropic's $100-$200/month Claude Max plans report that Opus 4.6's adaptive thinking and 1M token context window consume session quotas up to 9x faster than before, with some hitting limits in 15 minutes.
A systematic security audit of Claude Code, Codex, Cursor, Replit, and Devin found 69 vulnerabilities in 15 test applications - zero CSRF protection, zero security headers, and SSRF in every single tool.
Anthropic's new Claude Code Security tool found 500+ zero-day vulnerabilities in open-source projects. CrowdStrike dropped 8%, Okta 10%. The cybersecurity industry is not having a good day.
Anthropic analyzed millions of Claude Code sessions and found AI agents are working autonomously for nearly twice as long as they did four months ago, with experienced users granting more trust over time.
Anthropic's legal and compliance documentation explicitly prohibits using Claude Code OAuth tokens in third-party tools - and the company is enforcing it with server-side blocks and account bans.
