INTELLECT-3

INTELLECT-3 - Mixture-of-Experts reasoning model

INTELLECT-3 is presented by Prime Intellect as a Mixture-of-Experts (MoE) reasoning model that was post-trained from the GLM-4.5-Air base using supervised fine-tuning followed by large-scale reinforcement learning on Prime Intellect's RL stack.

Defining Characteristics

• Mixture-of-Experts architecture, documented as the model's structural identity.
• Post-training workflow: SFT on GLM-4.5-Air base followed by large-scale RL using the PRIME-RL trainer.
• Open-source release: weights, training frameworks, environments, and recipes are published under permissive licenses.

Context Strategy

• The model is published with a large context window (documented as 131K tokens for published inference builds) to support long-context tasks.