Alibaba releases Qwen2.5-Omni-7B, with superb listening, watching, reading and writing performance

Written by
Clara Bennett
Updated on:July-08th-2025
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Alibaba's Qwen2.5-Omni-7B leads a new era of multimodal AI, with performance that surpasses traditional models in all aspects.

Core content:
1. Overview of the Qwen2.5-Omni-7B model: a versatile multimodal system with 7 billion parameters
2. Breakthrough innovation: thinker-expresser architecture, TMRoPE position encoding, block stream processing
3. Practical application cases: next-generation voice assistants, video analysis, AI tutoring, etc.

Yang Fangxian
Founder of 53AI/Most Valuable Expert of Tencent Cloud (TVP)

Qwen2.5-Omni-7B: An all-around model that opens a new era of multimodal AI

Recently, the Qwen2.5-Omni-7B model launched by the Tongyi Qianwen team is a multimodal system that integrates text, image, audio, video processing, and real-time text and voice response generation, which greatly expands the boundaries of AI capabilities. Next, let's take readers to have a deeper understanding of the Qwen2.5-Omni-7B model.

1. Overview of Qwen2.5-Omni-7B 

Qwen2.5-Omni is a multimodal model with 7 billion parameters that integrates vision, speech, and language understanding into a unified system. Unlike traditional single-modal professional models (such as GPT for text and Whisper for audio), Qwen2.5-Omni can seamlessly process and generate multiple data types simultaneously.

Key Features:

  • Multimodal perception - understanding text, images, audio, and video.
  • Real-time generation – Generate text and voice responses in a stream.
  • Human-like interaction – emulates human cognition with its thinker-expresser architecture.
  • Leading benchmark performance - outperforming professional models in automatic speech recognition (ASR), optical character recognition (OCR), video understanding, and more.

2. Breakthrough Innovation 

1. Thinker-Expressor Architecture: The “Brain” and “Mouth” of AI

Inspired by human cognition, Qwen2.5-Omni divides tasks into:  -Thinker (brain) : processes input (text, audio, video) and generates high-level reasoning results.  -Expressor (mouth) : converts the output of the thinker into natural and fluent speech.

This separation avoids interference between different modalities and enables real-time interaction as smooth as humans thinking and speaking at the same time.

2. TMRoPE: Time-Aligned Multimodal Position Embedding

One of the biggest challenges facing multimodal artificial intelligence is the synchronization of audio and video. Qwen2.5-Omni solves this problem through TMRoPE, a novel positional encoding method:

  • Temporally align audio and video frames.
  • Dynamically adapts to variable frame rates.
  • Ensure seamless integration of different modalities.

This makes Qwen2.5-Omni excellent at processing video-audio tasks such as conversation transcription or real-time stream analysis.

3. Block stream processing to achieve low latency

To achieve real-time response, Qwen2.5-Omni processes data blocks in 2-second increments, reducing latency in the following areas:

  • Audio/Video Coding
  • Speech Generation
  • Text reply flow

This makes it ideal for real-time interaction scenarios such as voice assistants or video-based AI tutoring.

3. Benchmark Advantages: Qwen2.5-Omni Performance 

IV. Practical Application 

  1. Next-generation voice assistants
  • Voice commands are understood and responded to just as accurately as text commands.
  • Generates near-human-level speech (the word error rate on the SEED-zh dataset is 1.42%, close to human speech quality).
  • Video analysis and real-time translation
    • Transcribe meetings, lectures, or videos in real time.
    • Achieve multi-language speech-to-text conversion (e.g., Chinese to English BLEU score reaches 29.4).
  • AI Coaching and Customer Support
    • Answer questions based on images, PDFs, or videos (with over 95% accuracy on the Document Visual Question Answering (DocVQA) task).
    • Speak naturally with controlled tone and emotion.
  • Content Creation and Accessibility Services
    • Automatically generate video summaries with synchronized subtitles.
    • Provides voice narration with real-time image description for the visually impaired.

    5. The Future of Multimodal AI 

    Qwen2.5-Omni is not just an incremental upgrade, but a leap towards general artificial intelligence (AGI). With cross-modal unified perception and generation technology, Qwen2.5-Omni-7B effectively narrows the gap between artificial intelligence and human interaction, opening up a new direction for the development of multimodal artificial intelligence.

    Looking ahead, Qwen2.5-Omni-7B has many development directions worth looking forward to, among which expanding output modes is an important part. In the future, it is very likely to realize the generation of content such as images and videos. This expansion will not only enrich its application scenarios, but also bring more innovative possibilities to related fields, and further promote the deep integration of artificial intelligence and human life.