SpaceXAI has open-sourced Grok Build under the Apache 2.0 license, allowing users to modify and redistribute the software, which supports auditing and forking. The release includes a complete Rust implementation of the agent machinery used in its terminal coding system, enabling developers to explore various reliability approaches. In addition to this, SpaceXAI has reset every user’s usage allowance, enhancing access to the platform. While external contributions are currently closed, the public repository will periodically sync from an internal monorepo to maintain some level of shared development.

SpaceXAI: SpaceXAI develops frontier AI models including the Grok series focused on reasoning, voice, and image generation capabilities. The organization maintains an internal monorepo for tools like Grok Build while periodically syncing public repositories to support external inspection. Its recent actions include open-sourcing Grok Build to encourage community efforts in building more robust AI coding harnesses.
Grok Build: Grok Build is a coding agent harness and fullscreen terminal user interface that integrates agent loops, file tools, shell execution, web search, and configurable behaviors via Rust code. SpaceXAI has now released it under the Apache 2.0 license on a public GitHub repository to allow independent compilation, local inference connections, and customization through config files. This enables users and companies to audit or fork the software while external contributions stay managed internally.

Open Source License: The Apache 2.0 license on Grok Build grants broad permissions for modification and redistribution to support auditing and forking by external parties.
Agent Harness Transparency: Releasing the full Rust implementation of the agent machinery allows independent developers to examine and test different approaches to reliability in terminal-based AI coding systems.