Model index
NVIDIA·Nemotron

Nemotron 3.5 Bolt E4B

NVIDIA’s open-weight small conversational agent model with 8B total and 4B active parameters, targeting local voice assistants, interactive characters, and tool use.

CurrentLanguageReasoningAgentOpen weights
MODEL NUMBER267
First public date
2026-10-23
Organization
NVIDIA
Family
Nemotron
01

Specifications

Only published specifications are shown.

Total parameters
8B↗
Active parameters
4B↗
Context
65,536 tokens↗
Maximum input
65,536 tokens↗
Maximum output
65,536 tokens↗
Input modalities
Text↗
Output modalities
Text↗
Open weights
Yes↗
License
OpenMDW License Agreement v1.1↗
Status
Current↗
02

Overview

Release dates

— NVIDIA released an open-weight model for local conversational agents with 4GB GGUF and BF16 checkpoints and up to 64K context. ↗

Why it mattered

NVIDIA released Nemotron 3.5 Bolt E4B on 2026-10-23, with 4GB GGUF and BF16 checkpoints and up to 64K input and output tokens. NVIDIA says it builds on Gemma 4 E4B with additional post-training; the archive has no matching E4B base entity, so no lineage edge is inferred.

03

Architecture & capabilities

Model capabilities

ReasoningTool useConversationLocal inferenceMultilingual
04

Release history

Open weights

NVIDIA released an open-weight model for local conversational agents with 4GB GGUF and BF16 checkpoints and up to 64K context.

View source
05

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06

Sources

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