XingChen: Xing4.0 29B A4B (free) — pricing & benchmarks

By xingchen-agi · Updated 2026-11-01 · Open weights · apache-2.0cheap high-volumestep-by-step reasoningopen weights / self-hostable

What XingChen: Xing4.0 29B A4B (free) is used for

XingChen: Xing4.0 29B A4B (free) is best suited for cheap high-volume, step-by-step reasoning, open weights / self-hostable. Access it through one Appmo API key alongside 444 other models — Appmo's optimizer can route to it automatically when it is the best value for a request. Weights: huggingface.co/XingChen-AGI/Xing4.0-29B-A4B.

What people are saying (last 30 days)

Not enough posts yet to judge community sentiment. 2 new GitHub repos mentioning it. How we measure this.

Use it via the Appmo API (OpenAI-compatible)

curl https://appmo.com/v1/chat/completions \
  -H "Authorization: Bearer $APPMO_KEY" \
  -d '{"model":"xingchen-agi/xing4.0-29b-a4b:free","messages":[{"role":"user","content":"Hello"}]}'

FAQ

How much does XingChen: Xing4.0 29B A4B (free) cost?
XingChen: Xing4.0 29B A4B (free) costs $0 per 1M input tokens and $0 per 1M output tokens ($0 blended), as of 2026-11-01. Prices are expected to fall as competition increases.

What is XingChen: Xing4.0 29B A4B (free) best for?
XingChen: Xing4.0 29B A4B (free) is best suited for cheap high-volume, step-by-step reasoning, open weights / self-hostable.

How do I use XingChen: Xing4.0 29B A4B (free)?
Send requests to Appmo's OpenAI-compatible endpoint with model id "xingchen-agi/xing4.0-29b-a4b:free" and one API key — no separate provider account needed.

Is XingChen: Xing4.0 29B A4B (free) open source?
Yes — its weights are public on Hugging Face (XingChen-AGI/Xing4.0-29B-A4B) under the apache-2.0 license; check the license terms before commercial use.

Can XingChen: Xing4.0 29B A4B (free) create images?
No, XingChen: Xing4.0 29B A4B (free) works with text.