Chinese AI Tools
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ByteDance / Volcano Engine

Seeduplex

The ByteDance Seed models page lists Seeduplex as a native full-duplex speech LLM with high-precision interference suppression and adaptive endpoint detection. It sits beside Seed LiveInterpret 2.0, Seed Realtime Voice and Seed-Music in the Seed speech and GenMedia portfolio. This profile tracks Seeduplex as ByteDance's English-facing voice-agent and real-time speech model signal.

Partially availableFull English UILimited APIUnknownTrusted

Quick answers

At a glance

Overview
ByteDance Seed's native full-duplex speech LLM for real-time voice interaction.
Best fit
Teams tracking Chinese full-duplex speech models, realtime voice agents and multimodal interaction research.
Trust
2/2 sources verified, recently checked · 2026-05-17
Coverage
100/100 · backfill: pricing

Editorial verdict

Best for

Teams tracking Chinese full-duplex speech models, realtime voice agents and multimodal interaction research.

Avoid if

Avoid selecting it for production voice agents until API access, latency, languages and data terms are confirmed.

Why it matters

Seeduplex gives ByteDance Seed a distinct voice-interaction profile beyond text, image and video models.

Pricing

Voice model access and pricing should be verified through BytePlus or Volcano Engine

Payment

BytePlus billing, Volcano Engine billing

Commercial use

Commercial use should follow the current product, API, model license and billing terms.

Privacy

Review prompt, file, media upload, retention and training-use terms before sensitive workloads.

Use-case fit

Realtime voice agents

Strong

Track it for full-duplex speech conversations where interruption handling and endpoint detection matter.

Speech model watchlist

Medium

Compare with MiniMax Audio, Qwen Audio, MiMo Speech and GLM Audio before choosing a hosted voice stack.

Global user checklist

RegistrationUnknownPublic listing exists, but product access path should be checked through BytePlus or Volcano Engine.
English UIConfirmedSeeduplex appears on the English Seed model page.
API and docsUnknownDetailed API documentation was not confirmed from the model-list page alone.
Commercial useUnknownCommercial rights and recording/data handling need current platform review.
Coverage · 100/100 · backfill: pricing

Model names, quotas, release status, regional access and commercial terms can change quickly; recheck official sources before procurement or production use.

Pros

  • - Official English model list identifies Seeduplex as a native full-duplex speech LLM
  • - Relevant for interruption-tolerant voice-agent workflows
  • - Complements Seed LiveInterpret, Realtime Voice and Seed-Music entries

Cons

  • - The public Seeduplex page currently exposes limited text detail
  • - Latency, language coverage, API details and pricing require account-level checks

Decision paths

minimax-audio

qwen-audio

mimo-speech

zhipu-glm-audio

Sources

ByteDance Seed models

official · en · verified 2026-05-17

Lists Seeduplex, Seed LiveInterpret 2.0, Seed Realtime Voice and Seed-Music.

Seeduplex

official · en · verified 2026-05-17

Official Seeduplex model page linked from the Seed portfolio.

Reviews