Machine Heart
May 28, 2026 · Artificial Intelligence
How Orbit Enables Single-Node RL Fine-Tuning of Trillion-Parameter Models like DeepSeek‑V4
Orbit’s adapter‑first design freezes a low‑precision base model and updates only a small adapter, allowing trillion‑parameter MoE models such as DeepSeek‑V4 to be RL‑fine‑tuned on a single 8×B200 node while keeping training and rollout precision aligned and memory usage within budget.
DeepSeekMoEOrbit framework
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