AI Research Atlas

LongCat-Flash-Omni

Meituan (LongCat) · 23 October 2025

560B-total (27B active) open omni-modal model with 128K context for real-time audio-visual interaction and streaming speech.

Extends LongCat-Flash with lightweight modality encoders and a speech decoder, trained with curriculum-style progressive multimodal training. MIT.

Date
Thursday, 23 October 2025
Lab
Meituan (LongCat)
Kind
open-weights
Access
open weights

Figures

MeasureValueMeasured by
Total / active parameters560B / 27Bcompany
Context length128Kcompany

Date from HF initial commit (2025-10-23 UTC); Wikipedia confirms the model exists.

Sources

  1. huggingface.co/meituan-longcat/LongCat-Flash-Omni

This record was checked against its sources on 6 October 2026. How we check

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