Beta

hy4-preview-free

By Tencent

Text only: this model does not read images.

Model name for the APItencent/hy4-preview-free
Uptime, last 3 days
No record yet
Credits per reply
Free
Limited by number of calls

Your chats and training

Not used for training.

The company that answers for this model states in its own terms that it does not use prompts or replies to train its models.

Which company answers for a model is not published here, so this says what the policy is, not whose it is. Checked against their terms on Sep 28, 2026.

Model facts

Context length
1M tokens
Longest reply
64K tokens
Calls tools
Yes
Knowledge cutoff
Not published
Released
28 Aug 2026
Open weights
Yes

Context, reply length, tool calling, knowledge cutoff, release date and open weights come from the models.dev open dataset, read once a day.

Use in chatAPI docs

Call it through the API

Any OpenAI-compatible client works: use the address in the sample and this model name.

import requests

response = requests.post(
    "https://onomeo.com/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={"model": "tencent/hy4-preview-free", "messages": [
        {"role": "user", "content": "Hello!"}
    ]}
)
print(response.json())

Other free models

  1. openai/gpt-oss-20bFree98% up, last 3 days
  2. poolside/laguna-s-2.1:freeFree95% up, last 3 days
  3. z-ai/glm-5.3-flash-freeFree90% up, last 3 days
  4. inclusionai/ling-3.0-flash-sante:freeFree100% up, last 3 days
  5. glm-5.2Free97% up, last 3 days
  6. inclusionai/ling-3.1-flashFreeToo few calls yet

hy4-preview-free against other models

Figures come from real calls made through this site. Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.