White Circle open-sources Halo, a framework for training LLMs and multimodal models

rohanpaul_ai · x · 2026-09-22

White Circle has open-sourced Halo, a framework for training large language and multimodal models, under a modified Apache 2.0 license on GitHub.

The repo ships with full engineering support: Docker/docker-compose configs for vLLM and SGLang backends (including AWS EFA variants), examples, tests, and scripts. It has gathered 80+ stars so far.

Related event: White Circle Open-Sources Halo, a Post-Training Framework 2.8x Faster Than TRL(3 posts)→

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