Pi 1.0

If you build agentic applications, you can now use Pi Durable to create longer-running, more controllable AI tasks.

Earendil has released Pi 1.0, a stable, minimal, and extensible agent harness for developers. This new version incorporates user feedback to improve robustness and stability, maintaining its core minimalist design by adopting only proven technologies. Key additions in Pi 1.0 include native support for Codemode and non-LLM models, virtual model extensions, deferred tool loading, cache warming for specific models, mid-conversation system message updates, a new TUI theme, and default full-screen mode. Alongside Pi 1.0, Earendil has also launched Pi Durable, an experimental package designed for building long-running agentic applications that extend Pi's principles of minimalism and malleability into new dimensions, allowing for greater user control over AI intelligence across different surfaces and tasks.

The release of Pi 1.0 signifies a commitment to stability and curated adoption of new AI technologies, contrasting with the rapid, often ephemeral, changes seen in the broader agentic tooling landscape. By waiting for technologies to prove themselves, Earendil aims to provide a dependable foundation for developers, ensuring that added complexity directly correlates with proven functionality. This approach allows Pi to remain a 'minimal' yet powerful substrate for building AI applications.

Pi Durable's introduction extends Earendil's philosophy into new territory, focusing on durability and user steerability for long-running applications. This experimental package suggests a market need for agentic tools that are not only capable but also robust and adaptable for complex, persistent tasks, moving beyond single-session coding assistance to more involved AI workflows.