Qwen-Audio-3.1-Realtime-Plus

Qwen-Audio-3.1-Realtime-Plus is Alibaba's speech-to-speech model that handles audio in both directions at once, served through Alibaba Cloud Model Studio. Its lifecycle listing dates the release to 20 September 2026 in both the Singapore and China (Beijing) regions, and Alibaba announced it publicly on 23 September.

Features

• Streaming voice: receives audio as a stream and sends back speech and text as a stream over a persistent WebSocket link, and also supports AOQ and WebRTC.
• Tools and search: function calling and web search, although web search cannot run at the same time as function calling.
• Voice cloning: clones voices, and adds eight system voices to the existing set.
• Turn detection: acoustic, semantic (smart turn) or push-to-talk.
• Conversation history: retained for up to 50 turns (20 by default), or until 300 seconds of audio have accumulated.

Who it works with

It is intended for voice assistants, customer-service lines and AI companions.

Key facts

• Context window: 262,144 tokens.
• Languages: eleven languages, including English and Japanese, and 21 Chinese varieties including Mandarin and Cantonese.
• Audio format: 16 kHz mono PCM in, and 24 kHz PCM out.
• Weights: proprietary, with no downloadable weights.