AI · 2h ago
Grok Build Open Source, But Model Weights Stay Private
SpaceXAI open-sourced the Grok Build agent harness and terminal UI under Apache 2.0, but not the Grok 4.5 model weights. Users can self-host the agent loop and tools, but must still pay API fees for the model. The release is inspectable and reusable, but contributions are not accepted.
Meridian48 take
The open-sourcing is a strategic move to boost adoption of the agent framework, but the core value—the model—remains locked behind API pricing.
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Grok 4.5 Isn't Open Source. The Apache 2.0 Release Has a Privacy Catch. →
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open-sourcegrok-4.5