hy4 API
Tencent's hy4, through an OpenAI-compatible API. Providers quote it on an open exchange, and each request goes to the offer with the lowest estimated charge that meets your rules.
- Providers compete for each request. The exchange ranks the offers that meet your rules by estimated charge. It fixes your maximum charge before the first token, and you pay for the tokens that the model uses.
- The OpenAI and Anthropic APIs. Use the OpenAI or Anthropic SDK that you have. Set the base URL and your key, and send hy4 as the model.
- Your data rules. Send x-liquid-retention: none and only offers whose provider does not keep your content compete for the request.
Facts
- Model name
- hy4
- Maker
- Tencent
- Context window
- 1M tokens
- Input price
- $0.462 per million tokens
- Output price
- $1.385 per million tokens
- Providers
- 1 independent provider
- Regions
- us
Providers
- Architect: us, $0.462 input and $1.385 output per million tokens, $0.023 cache read per million tokens, 1M tokens of context
Request
curl https://router.inference.ai.exchange/v1/chat/completions \
-H "Authorization: Bearer $LIQUID_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "hy4",
"messages": [{"role":"user","content":"Say hello."}]
}'Questions
- What is hy4?
- hy4 is a model from Tencent.
- How much does hy4 cost?
- Offers now ask $0.462 per million input tokens and $1.385 per million output tokens. A job pays for the tokens it uses. The exchange picks the cheapest eligible offer.
- What is the context length of hy4?
- The largest offer takes 1,048,576 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.
- What can hy4 do?
- Its providers list Vision, Reasoning effort, JSON object, JSON schema, Frequency penalty, Logit bias, Log probabilities, Min-p sampling, Presence penalty, Repetition penalty, Seed, Stop sequences, Top-k sampling, Top-p sampling, Text, Tools.
- What inputs and outputs does hy4 support?
- Text · Images → Text.
- Which providers serve hy4?
- 1 independent provider quote it now, with 1 offer. The table above ranks them by the cost of a typical job.
- How do I call hy4?
- Send "hy4" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.
- When was hy4 listed?
- The exchange first listed it on 11/5/2026. This is not its release date.