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Xing4.0 29B A4B
Xing4.0-29B-A4B is an open-weight mixture-of-experts language model from China Telecom's AI team (TeleAI) and the successor to the TeleChat series.
Specifications
| Lab | XingChen AGI |
|---|---|
| Context window | 262.1K tokens |
| Input price | $0.00/1M |
| Output price | $0.00/1M |
| Release | Oct 2026 |
Strengths
- 29B MoE with only 4B active parameters per token — cheap to serve
- Strong early traction: 53K+ downloads and 1.8K likes on Hugging Face
- Open-weight release under Apache 2.0 with Transformers support
- Free tier on OpenRouter with a 262K-token context window
- Backed by published research from China Telecom's TeleAI team
Weaknesses
- Launched 2026-10 with no independent benchmark results yet
- Free-tier-only listing — paid pricing and limits unclear
- 4B active parameters cap its ceiling against larger models
Best for
- Cost-sensitive general chat and assistants
- Efficient open-weight deployments on modest hardware
- Long-document tasks on a free tier
In Depth: Xing4.0 29B A4B
Summary
Xing4.0 29B A4B is an AI model from XingChen AGI.
Released in Oct 2026. It takes text input and produces text output, with a context window of 262.1K tokens. Input pricing is $0.00 per 1M tokens and output is $0.00 per 1M tokens on OpenRouter.