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Together AI opens a service for custom model post-training

Together AI says its new Post-Training service lets teams run supervised fine-tuning or reinforcement-learning loops on supported open-weight models using dedicated GPU resources billed per GPU-minute. It lists models from Meta, Z.ai, Moonshot AI and Qwen as bases; Together is providing the training service, not claiming to have created those foundation models.

Together AI

Together Post-Training

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Primary source · Together AI · October 19, 2026

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