Warp just open-sourced its entire client codebase. OpenAI is the founding sponsor. Anyone can build from source now. OpenAI's backing means Warp's agent orchestration platform, Oz, runs on GPT models. That covers local coding help and background cloud tasks like dependency updates and PR reviews. The UI framework uses MIT. Everything else is AGPL v3. A practical split that lets developers reuse UI components while keeping the core protected from closed forks. Warp calls itself an 'agentic development environment,' not just a terminal. It supports multiple AI agents. Use the built-in coding tool or plug in Claude Code, Codex, Gemini CLI, or OpenCode. Block-based output and interactive code review set it apart from iTerm2 or Ghostty. Hacker News reaction runs mixed. Some praise the multi-agent management and vertical tab layouts. Others bring up Warp's history, alleging it started as a fork of Alacritty that took venture funding without giving back. OpenAI's sponsorship is a straightforward bet that the command line, long ignored by AI companies, is ready for agentic workflows.