Open-source models for voice assistants

These models hold a spoken conversation: they listen and reply with speech without a separate recognition, text and synthesis pipeline. They power phone voice bots and in-app assistants. Check response latency, support for your languages, the license and GPU requirements.

19 open model families in this collection.Updated 22 Sep 2026Open the full catalog with filters
TextOllama2024–2026

NVIDIA Nemotron

NVIDIA · USA

NVIDIA models for agents and reasoning, optimized to run fast on its GPUs. Nemotron 3 is a Mamba and MoE hybrid from 4B to 550B; Nano Omni handles video, audio and images (English only). The new Nemotron 3.5 Super VL (120B, 12B active, up to 1M-token context) reads text, images and video up to two minutes, with a focus on documents and agents; the compressed Bolt (74B, 9B active) fits into 24 GB of video memory. Super VL languages: English, Spanish, French, German, Italian, Japanese. Dory 1.0 (4B, up to 256K-token context, English) runs the same block of layers several times, and the number of passes can be changed per task: more passes give more accuracy without a new model and without long reasoning in the text.

  • Agents with tool calling
  • Reasoning and calculation tasks
  • Answers based on long documents
Sizes
4B – 550B-A55B
Hardware
from: Laptop
Commercial use with conditionsDetails
Text analysisRU2026

Liquid d1

Liquid AI · USA

Small decision models: from text, an image or a voice clip they answer yes or no, pick an option or give a rating in one pass, without writing text. d1-3B sees images, d1-omni-600M also hears speech up to 30 seconds. Russian is listed. The open d1-2B (text, pictures and video, based on LFM3-VL-2B) and d1-Omni-2B (sound as well) decide in milliseconds, 5.7 ms on an H100 by the authors measurements; besides choosing an answer they pull out text, numbers and dates with their positions and find objects in a picture. It is not a chat model.

  • routing requests and tickets to teams
  • checking a photo for defects or violations against a list of questions
  • routing voice commands
Sizes
600M, 2B and 3B
Hardware
from: Laptop
Commercial use with conditionsDetails
TextRUOllama2025–2026

Liquid LFM

Liquid AI · USA

Models with a new architecture for on-device use: fast on a regular CPU and on phones. Versions for data extraction, RAG and tools, plus LFM2.5-VL for images and voice LFM2.5-Audio. The largest, LFM2.5-24B-A2B (2.45B active, 131K-token context, Russian in the language list), always reasons before answering and targets fast on-device agents. In October the LFM3 generation came out on a new tri-hybrid architecture: LFM3-1.7B for local agents (256 thousand tokens of context, about 1 GB of memory at 4 bits, pre-trained on 22 trillion tokens), LFM3-VL-2B for images, LFM3-Audio-2B for speech and LFM3-Omni-2B, which understands text, images, video and sound and answers in text and speech. The authors do not recommend it for complex code and multi-step reasoning.

  • Offline assistant on a laptop or phone
  • Data extraction from documents
  • Tool calling in apps
Sizes
230M – 24B-A2B
Hardware
from: Laptop
Commercial use with conditionsDetails
Text2026

Muse Spark Open

Meta Superintelligence Labs · USA

Meta's largest open model: 816B parameters, 42B active per token, a 1 million token context. It understands text, images, video and audio and answers in text. Built for programming and long agentic tasks. Trained on data in more than 100 languages. Access to the weights on Hugging Face is granted manually.

  • an agent for working with code and long tasks with tool calling
  • analyzing screenshots, charts, documents, video and recordings
  • generating training data for other models
Sizes
816B-A42B
Hardware
from: Cluster
Commercial use with conditionsDetails
Documents and OCR2026

Youtu-Parsing-Omni

Tencent · China

One compact model turns a document page, chart, flowchart, geometry figure, audio or video into structured JSON: with block coordinates, tables, formulas, speech transcription and timestamps.

  • parsing scans and PDFs with tables and formulas
  • turning charts and flowcharts into a table or diagram
  • transcribing audio and video with timestamps
Sizes
5B
Hardware
from: 1 GPU
Commercial use with conditionsDetails
Text analysisOllama2026

Clef

Cloudflare · USA

Decision models: they do not write text but read a situation (text, JSON, an image, video frames, and for Clef-Omni also audio) and return in one pass the probability of each answer to typed questions: yes or no, pick one, rate on a scale. The agent gets ready numbers instead of parsing free text.

  • sorting requests and tickets into categories with a probability
  • checking a document or photo against a list of questions (is everything stated, is there a violation)
  • choosing the next step of an agent without parsing a text answer
Sizes
27B, 9B (Clef-flash) and 30B-A3B (Clef-Omni)
Hardware
from: Laptop
Commercial use allowedDetails
TextGGUF2025–2026

Step

StepFun · China

StepFun MoE models built for fast, low-cost work: with 196 billion parameters, Step-3.5/3.7-Flash use about 11 billion per token. Compact Step3-VL-10B for images and voice Step-Audio 2 mini are available. The flagship Step 5 Preview (600B, 27B active, up to 1M-token context, text and images as input) is built for agents, programming and finance tasks.

  • High-load agents
  • Analysis of documents with diagrams and screenshots
  • Help for developers
Sizes
8B to 600B
Hardware
from: 1 GPU
Commercial use with conditionsDetails
TextRU2024–2026

GigaChat

Sber · Russia

Sber open models with strong Russian language support and local context, from 10B-A1.8B to 702B, all MIT. GigaChat3.1-Audio handles recordings up to two hours; GFusion is a fast diffusion text version.

  • Russian-language employee assistant on your own server
  • Customer replies and request handling in Russian
  • Working with contracts and internal policies
Sizes
10B-A1.8B – 702B-A36B
Hardware
from: Laptop
Commercial use allowedDetails
TextGGUF2025–2026

MiMo

Xiaomi · China

Xiaomi models for reasoning and agents: from the compact MiMo-7B to MiMo-V2.6-Pro with 1.02 trillion parameters. The larger versions understand text, images, video and audio, with a 1M token context. Languages: English and Chinese.

  • Logic and calculation tasks
  • Agents with tools
  • Help for developers
Sizes
7B – 1,02T-A42B
Hardware
from: Laptop
Commercial use allowedDetails
Voice assistants2026

Samsone

Samsung · South Korea

Tiny audio-understanding models for smartphones: they listen to speech, music and ambient sounds and answer in text - describing a recording and answering questions about it. They run on the device itself; prompts and answers are in English - no other languages are present in the training data.

  • Describing an audio recording in words
  • Answering questions about a sound
  • Identifying the type of sound and the setting
Sizes
99M – 356M
Hardware
from: Laptop
Non-commercial onlyDetails
TextGGUF2025–2026

LongCat

Meituan · China

Models from Meituan, China's largest delivery service. LongCat-Flash adjusts compute to query complexity; LongCat-2.0 has 1.6 trillion parameters under MIT. Omni models (Flash-Omni, Next) and AudioDiT speech synthesis too.

  • Agents for orders and service processes
  • Corporate assistant
  • Analysis of long documents
Sizes
1B – 1.6T-A48B
Hardware
from: Laptop
Commercial use allowedDetails
Voice assistants2024–2026

Audio Flamingo

NVIDIA · USA

Models that listen to speech, sounds and music and answer questions about them. Audio Flamingo Next handles recordings up to 30 minutes. Research use only.

  • Detailed descriptions of audio recordings
  • Questions and answers about a long recording
  • Tagging music and sounds
Sizes
0.5B – 8B
Hardware
from: Laptop
Non-commercial onlyDetails
Voice assistantsGGUF2025–2026

MiniCPM-o

OpenBMB (ModelBest, Tsinghua University) · China

A small model that sees, hears and replies by voice in real time, and can clone a voice. Voice dialogue in English and Chinese, text in 30+ languages.

  • Voice assistant on your own server
  • Analyzing videos and documents
  • Voice answers about a camera image
Sizes
8B – 9B
Hardware
from: Laptop
Commercial use allowedDetails
Voice assistants2024–2026

Moshi / Hibiki

Kyutai · France

A voice assistant that listens and speaks at the same time, with no delay for recognition and synthesis. Hibiki does simultaneous speech-to-speech translation between several European languages.

  • Real-time voice conversation partner
  • Simultaneous speech translation
  • Zero-latency voice interfaces
Sizes
2B – 7B
Hardware
from: Laptop
Commercial use with conditionsDetails
Voice assistantsGGUF2026

PersonaPlex

NVIDIA · USA

A voice conversation partner based on Moshi that listens and speaks at the same time and can be interrupted. The role is set by text, the voice by a sample recording. English only.

  • A voice assistant with a set role
  • A conversation simulator for staff training
  • Voice interfaces without delay
Sizes
7B
Hardware
from: 1 GPU
Commercial use with conditionsDetails
TextRUGGUF2024–2025

Vikhr

Vikhr Models · Russia

Russian-language fine-tunes of open models (Mistral, Qwen, Llama) by the independent Vikhr team, with compact versions for a regular PC. Borealis is an audio model for recognizing and understanding Russian speech.

  • Russian-language assistant on your own PC or server
  • Knowledge-base answers (RAG)
  • Texts and emails in Russian
Sizes
0.5B – 24B
Hardware
from: Laptop
Commercial use allowedDetails
Voice assistantsRUGGUF2025

Qwen Omni

Alibaba (Qwen) · China

Models that understand text, images, audio and video and reply by voice in real time. Qwen3-Omni speaks 10 languages, including Russian.

  • Voice assistant for customers
  • Analyzing calls and videos
  • Voice answers about documents and images
Sizes
3B – 30B-A3B
Hardware
from: Laptop
Commercial use allowedDetails
Voice assistants2025

Kimi-Audio

Moonshot AI · China

A general-purpose audio model: speech recognition, answering questions about sounds, detecting emotions and voice dialogue. Trained on 13 million hours of audio; languages are English and Chinese.

  • Speech recognition
  • Detecting emotions and sound events
  • Speech-to-speech voice dialogue
Sizes
7B
Hardware
from: 1 GPU
Commercial use allowedDetails
Voice assistantsRUNot maintained2023

SeamlessM4T / Seamless

Meta · USA

Speech and text translation across roughly a hundred languages, including Russian: speech to text, speech to speech, and streaming translation that keeps intonation.

  • Speech-to-speech translation
  • Translating and transcribing recordings
  • Streaming translation
Sizes
281M – 2.3B
Hardware
from: Laptop
Non-commercial onlyDetails

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