Overview
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. It has 29B total parameters with 4B active per token...
Our take
Developers building agent-style applications will find XingChen: Xing4.0 29B A4B particularly relevant. Its support for tool/function calling and structured JSON outputs facilitates integration into automated workflows, such as an application that needs to extract specific data fields from a text and then pass that data to another system. While alternatives like Claude and ChatGPT also offer chatbot functionalities, XingChen's positioning as a free, open-weight model with a 262,144-token context window may appeal to those requiring extensive context processing without a direct cost. The inclusion of a built-in reasoning mode for complex problems further supports its utility in scenarios beyond basic conversational AI. This makes it ideal for users who need a cost-effective, adaptable language model for research or writing tasks that involve complex, multi-step processing or require structured data extraction. Those needing image input capabilities should look elsewhere.
How XingChen: Xing4.0 29B A4B stacks up
Among the 380 chatbots & llms tools in our directory, it ranks #205 of 375 on quality (7.8/10), 3% below the 375-tool average of 8.1, and it's one of the free-to-use options in the category.
XingChen: Xing4.0 29B A4B in depth
XingChen: Xing4.0 29B A4B, built by Xingchen Agi, sits in the chatbots & llms space and is completely free to use. Our editors rate it 7.8 out of 10 based on capability, ecosystem and value. It handles a context window of 262,144 tokens.
On the feature side, XingChen: Xing4.0 29B A4B brings 262,144-token context window, reasoning / chain-of-thought, tool / function calling and structured (json) outputs. These are the capabilities that most shape day-to-day use and separate it from thinner alternatives.
Its biggest strength is completely free to use via the openrouter api, while the main trade-off to weigh is that text-only: does not accept image input. Keep both in mind when deciding whether it fits your workflow.
XingChen: Xing4.0 29B A4B is most often chosen for research and writing. If that matches your goals, it's a strong candidate to shortlist.
Key features
- ✓262,144-token context window
- ✓Reasoning / chain-of-thought
- ✓Tool / function calling
- ✓Structured (JSON) outputs
Pricing
Pros
- +Completely free to use via the OpenRouter API
- +Built-in reasoning (chain-of-thought) mode for harder problems
- +Supports tool / function calling for agent-style workflows
- +Can return structured JSON output for reliable parsing
Cons
- −Text-only: does not accept image input
Who should use XingChen: Xing4.0 29B A4B
- →Anyone looking for a chatbots & llms tool from Xingchen Agi.
- →Teams and individuals focused on research and writing.
- →Users who want to try before they buy — there's a free tier.
- →People who value completely free to use via the openrouter api.
Who should look elsewhere
- →Those for whom text-only: does not accept image input is a dealbreaker.
Best for
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XingChen: Xing4.0 29B A4B vs top alternatives
A side-by-side look at how XingChen: Xing4.0 29B A4B stacks up against its closest rivals.
| Feature | XingChen: Xing4.0 29B A4BXingchen Agi | ClaudeAnthropic | ChatGPTOpenAI | GeminiGoogle DeepMind |
|---|---|---|---|---|
| Quality score | 7.8 / 10 | 9.6 / 10 | 9.5 / 10 | 9.2 / 10 |
| Starting price | Free | $20/mo | $20/mo | $20/mo |
| Free tier | Yes — Free tier available | Yes — Free tier available | Yes — Free tier available | Yes — Free tier available |
| API input price | $0 / 1M tokens | $0.1 / 1M tokens | $2 / 1M tokens | $2 / 1M tokens |
| API output price | $0 / 1M tokens | $0.5 / 1M tokens | $10 / 1M tokens | $10 / 1M tokens |
| Speed | — | Fast | Fast | Fast |
| Context window | 262,144 tokens | 200K tokens | 128K tokens | 1M-2M tokens |
| Categories | Chatbots & LLMs | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing |
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Frequently asked questions
Q. Is XingChen: Xing4.0 29B A4B free?
Yes — XingChen: Xing4.0 29B A4B offers a free tier. Paid plans start at Free.
Q. How much does XingChen: Xing4.0 29B A4B cost?
XingChen: Xing4.0 29B A4B starts at Free. API usage is around $0 per 1M input tokens and $0 per 1M output tokens.
Q. What is XingChen: Xing4.0 29B A4B best for?
XingChen: Xing4.0 29B A4B is best suited to research and writing, within the chatbots & llms category.
Q. What are the best XingChen: Xing4.0 29B A4B alternatives?
Popular alternatives to XingChen: Xing4.0 29B A4B include Claude, ChatGPT, Gemini and MoonshotAI: Kimi K3.1 Pro. Each trades off price, quality and ecosystem differently.
Q. Is there a free alternative to XingChen: Xing4.0 29B A4B?
Yes. Claude, ChatGPT, Gemini offer a free tier, making them good starting points if you want to avoid an upfront subscription.
Q. Why switch from XingChen: Xing4.0 29B A4B?
Common reasons include pricing, specific feature gaps (Text-only: does not accept image input), data-privacy requirements, or simply wanting a tool that fits your stack better.
How we rate AI tools
Our quality score weighs capability on real tasks, breadth of features and integrations, pricing and value, and how actively the tool is maintained. Scores are editorial guidance, not benchmarks — always trial a tool on your own workflow before committing. Pricing and features change frequently, so verify current details on the official site.
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