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NVIDIA has released the open-source small language model Nemotron 3.5 Bolt E4B 4GB, optimized for on-device voice assistants, game NPCs, and robots.

NVIDIA, leveraging Google’s Gemma 4 E4B model and employing only reinforcement learning (RL) for post-training, has launched Nemotron 3.5 Bolt E4B 4GB—a small open-source language model with 8B total parameters, 4B effective parameters, and a 64K context window. It is designed to run on edge devices such as RTX and Jetson with approximately 4GB of VRAM, supporting multi-turn tool calls and low-latency voice interaction.

NVIDIA CEO demonstrates the Microduck robot, sparking a pre-sale frenzy with orders exceeding 20,000 units.

At the GTC Berlin conference, NVIDIA CEO Jensen Huang demonstrated Microduck, a robot developed by Pollen Robotics and now part of Hugging Face (which has been acquired by NVIDIA). This open-source robot can perform actions such as walking, sitting, pretending to sleep, and even doing backflips—all via voice commands. Following the video’s viral success, pre-orders exceeded 20,000 units the next day, positioning it as a potential holiday-season hit toy. These robots are trained using NVIDIA’s technology stack, enabling users to customize their training and share new skills.

Why it matters：The information is generated based on the provided TechCrunch article and fact list. The material states that Microduck is manufactured by Pollen Robotics, which was acquired by Hugging Face in 2025, and that NVIDIA acquired Hugging Face in September of the same year. The pre-sale data, feature descriptions, and delivery timelines mentioned in the text are directly quoted from the material, with no external information added.