Xing4.0 29B A4B API
model: xing4.0-29b-a4b
This model is not available on the CallAI gateway yet; prices shown are the official reference. See the model directory for available models in the same family.
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...
CallAI pricing
Crypto OKSpecs & upstream
SDK quickstart
OpenAI-compatiblefrom openai import OpenAI
client = OpenAI(
api_key="sk-live-your-callai-key",
base_url="https://api.callaiapi.com/v1"
)
response = client.chat.completions.create(
model="xing4.0-29b-a4b",
messages=[
{"role": "system", "content": "You are a helpful coding assistant."},
{"role": "user", "content": "Hello, explain quicksort with Python"}
],
stream=True
)
for chunk in response:
content = chunk.choices[0].delta.content
if content:
print(content, end="", flush=True)import OpenAI from 'openai';
const openai = new OpenAI({
apiKey: process.env.CALLAI_API_KEY,
baseURL: 'https://api.callaiapi.com/v1',
});
const response = await openai.chat.completions.create({
model: 'xing4.0-29b-a4b',
messages: [{ role: 'user', content: 'Hello!' }],
stream: true,
});
for await (const chunk of response) {
process.stdout.write(chunk.choices[0]?.delta?.content || '');
}FAQ — Xing4.0 29B A4B
How do I call Xing4.0 29B A4B (xing4.0-29b-a4b)?
Use the official OpenAI SDK with base_url https://api.callaiapi.com/v1, your CallAI API key, and model "xing4.0-29b-a4b".
What does Xing4.0 29B A4B cost?
Xing4.0 29B A4B is not available on CallAI yet; pricing is to be announced. Once listed it is pay-as-you-go, funded with USDT — no subscription.
Can I use Xing4.0 29B A4B in Cursor or Windsurf?
Yes. Set OpenAI Base URL to https://api.callaiapi.com/v1 and add model "xing4.0-29b-a4b" in Settings → Models.
Can I pay without a credit card?
Yes. Top up with USDT-TRC20 from $1. Balance never expires and works for Xing4.0 29B A4B and other CallAI services.
Related models
View all pricing →Xing4.0 29B A4B access facts
API model: xing4.0-29b-a4b · Vendor: Xingchen Agi · Pay-as-you-go
- API model name
- xing4.0-29b-a4b
- Vendor
- Xingchen Agi
- Context window
- 262K
- CallAI price (in/out 1M)
- — / —
- Upstream benchmark
- — / —
- Protocol
- OpenAI SDK Compatible
- Base URL
- https://api.callaiapi.com/v1
- Best for
- Cursor, CLI agents, production apps