Tencent: Hy4 preview — pricing & benchmarks

By tencent · Updated 2026-10-06 · Open weights · apache-2.0long-context / RAGstep-by-step reasoningopen weights / self-hostable

What Tencent: Hy4 preview is used for

Tencent: Hy4 preview is best suited for long-context / RAG, step-by-step reasoning, open weights / self-hostable. Access it through one Appmo API key alongside 458 other models — Appmo's optimizer can route to it automatically when it is the best value for a request. Weights: huggingface.co/tencent/Hy4-preview.

What people are saying (last 30 days)

Not enough posts yet to judge community sentiment. 4 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":"tencent/hy4-preview","messages":[{"role":"user","content":"Hello"}]}'

FAQ

How much does Tencent: Hy4 preview cost?
Tencent: Hy4 preview costs $0.834 per 1M input tokens and $2.501 per 1M output tokens ($1.251 blended), as of 2026-10-06. Prices are expected to fall as competition increases.

What is Tencent: Hy4 preview best for?
Tencent: Hy4 preview is best suited for long-context / RAG, step-by-step reasoning, open weights / self-hostable.

How do I use Tencent: Hy4 preview?
Send requests to Appmo's OpenAI-compatible endpoint with model id "tencent/hy4-preview" and one API key — no separate provider account needed.

Is Tencent: Hy4 preview open source?
Yes — its weights are public on Hugging Face (tencent/Hy4-preview) under the apache-2.0 license; check the license terms before commercial use.

Can Tencent: Hy4 preview create images?
No, Tencent: Hy4 preview works with text.