LLM Reference

Using Unisound U2 on Unisound Token Hub

Implementation guide · Unisound U2 · Unisound

Serverless

Quick Start

  1. 1
    Create an account at Unisound Token Hub and generate an API key.
  2. 2
    Use the Unisound Token Hub SDK or REST API to call u2 — see the documentation for request format.

Code Examples

See Unisound Token Hub documentation for integration details.

About Unisound Token Hub

Unisound Token Hub provides API access to Unisound's U2 text-generation model plus related speech and vision models. The OpenAI-compatible chat endpoint uses model code u2, supports streaming, function calling, and reasoning output, and lists pay-as-you-go pricing in CNY per 1M tokens.

Unisound Token Hub is Unisound's MaaS platform for text, speech, and vision models. Its text-generation API exposes Unisound U2 through OpenAI-compatible and Anthropic-compatible endpoints.

Pricing on Unisound Token Hub

Capabilities

ReasoningFunction CallingTool Use

About Unisound U2

Unisound U2 is a native agentic large language model announced June 8, 2026, by Chinese AI company Unisound (云知声). Designed for multi-step autonomous task execution, it uses native reasoning-path distillation for task decomposition, execution, verification, and optimization. The official Token Hub page lists a sparse MoE architecture with 266B total parameters and 10B active parameters, plus API access through Unisound Token Hub. Emphasis is on coding, tool orchestration, and long-horizon agent workflows. Unisound self-reports GPQA Diamond 87.9, SWE-bench Verified 75.0, and Claw-Eval 76.9; treat those benchmarks as vendor-reported until independently verified. Context window is not disclosed.

Model Specs

Released2026-06-08
Parameters266B
ArchitectureMixture of Experts

Provider

Unisound Token Hub

Unisound

Beijing, China