Xing4.0 29B A4B on OpenRouter

Xing4 · China Telecom Artificial Intelligence Research Institute

Serverless
Open Source

Last refreshed 2026-10-19. Next refresh: weekly.

Why use Xing4.0 29B A4B on OpenRouter?

OpenRouter offers Xing4.0 29B A4B. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.

Input / 1M
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Output / 1M
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Cache
Not sourced
Batch
Not sourced

Setup recipe

Docs fallback
Install
Use the provider REST API or SDK
Auth
Create a provider API key
Call
model: xingchen-agi/xing4.0-29b-a4b:free
Model ID
xingchen-agi/xing4.0-29b-a4b:free

Request example

Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID xingchen-agi/xing4.0-29b-a4b:free.

Gotchas

  • Use provider model ID "xingchen-agi/xing4.0-29b-a4b:free", not the LLMReference slug "xing4-0-29b-a4b".

Capabilities

ReasoningJSON / Tool useFine-tuning

About Xing4.0 29B A4B

Xing4.0-29B-A4B is an open-weight mixture-of-experts language model from China Telecom Artificial Intelligence Technology Co., Ltd. (TeleAI), the successor to the TeleChat series. It has 29B total parameters with 4B active per token (64 routed experts, 4 active, 1 shared), MLA attention, and a native 256K context (extensible to 512K). Weights are published under Apache 2.0 at Hugging Face XingChen-AGI/Xing4.0-29B-A4B. Open-sourced 2026-09-17.

Get Started

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Model Specs

Released2026-09-17
Parameters29B
Context256K
ArchitectureMixture of Experts

Provider

OpenRouter

OpenRouter, Inc.

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