# NVIDIA's new 4GB Nemotron model is built to run game characters and voice assistants on your own machine.

> NVIDIA released Nemotron 3.5 Bolt E4B, a 4GB open model for local assistants, game characters and robots.

Published 2026-10-23T12:25:02-07:00 · News · Canonical: https://news.littlewolflabs.com/posts/2026-10-23-nemotron-bolt-e4b

On Friday, Oct 23, NVIDIA released Nemotron 3.5 Bolt E4B 4GB, a small open model "built for local assistants, interactive characters and robots that can carry on a conversation and use tools" ([NVIDIA AI on X](https://x.com/NVIDIAAI/status/2113657112408785153)).



According to its model card, NVIDIA built it on top of Google's Gemma 4 E4B, and it comes already compressed to a 4-bit format so the file is about 4GB ([Hugging Face](https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Bolt-E4B-4GB)). It takes text in and gives text out, with up to 64K tokens of context. You can turn its step-by-step thinking on or off, cap how long it thinks, or use a conversational mode for chat. NVIDIA reports 55.60 on MultiChallenge, a test of holding a multi-turn conversation, against 39.36 for the Gemma model it started from, and 71.21 against 60.51 on RoleBench, a role-play test.



NVIDIA's prompting guide even includes examples of setting it up as a game-style character. The license is NVIDIA's OpenMDW-1.1 (with Gemma 4 under Apache 2.0), and NVIDIA says it is "ready for commercial or non-commercial use." It is on Hugging Face and build.nvidia.com, and Ollama and Unsloth have both posted versions to run locally ([Ollama on X](https://x.com/ollama/status/2113684810426450098), [Unsloth on X](https://x.com/UnslothAI/status/2113658964365971681)). Unsloth says it runs in about 6GB of RAM.



*Try it:* if you make games or interactive projects, load it locally and give it a character sheet. A model this small can sit next to a game on an ordinary gaming PC, so you can test NPC dialogue without paying per message.