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Tencent Hy4

Tencent Hy4 from Tencent: a text model for chat and completions, with a 1,048,576-token context window and up to 65,536 output tokens. Every model below its source price, and the cheapest provider wins every request. Pay per token in USDF, with no subscription and no minimum. Streaming and the OpenAI-compatible request format are supported.

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Tencenthy4ServingtextContext window: 1,048,576 tokens

Context window

1,048,576

tokens

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Models with a zero-retention route use it by default. A model marked 'provider may keep data' is served by a provider that may keep request data; choosing it is your choice.

Model ID: hy4
Modality: text
Unit: USD per 1M tokens
Endpoints: /v1/chat/completions
Max output: 65,536 tokens

Data policy

Privacy details

Zero retentionNo training

Make your first request

Use any OpenAI-compatible SDK. Change the base URL, keep everything else. Responses include a receipt with the exact cost. Need a key? Create one.

Without an account, send the same request to /x402/v1/chat/completions with no credentials and the gateway answers 402 with a quote. Pay per request.

POST /v1/chat/completions

curl https://api.usdf.fi/v1/chat/completions \
  -H "Authorization: Bearer $USDF_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "hy4", "messages": [{"role": "user", "content": "Hello"}]}'