LiteLLMModels

Hy4 Preview API Pricing

As of October 10, 2026, Hy4 Preview costs $0.845 per 1M input tokens and $2.535 per 1M output tokens on AIHubMix, with cache reads at $0.04225 per 1M tokens. It has a 1,048,576-token context window and returns up to 64,000 tokens per response.

Model ID aihubmix/hy4-previewPrices updated Checked
Input
$0.845 / 1M tokens
Output
$2.535 / 1M tokens
Cache read
$0.04225 / 1M tokens
Context window
1,048,576 tokens
Max output
64,000 tokens
Providers
1
Added to LiteLLM
September 16, 2026

Hy4 Preview pricing by provider

1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

ProviderModel name in LiteLLMInputOutputCache readContext
AIHubMixaihubmix/hy4-preview$0.845$2.535$0.042251M

What Hy4 Preview costs in practice

1,000 requests with 2,000 input and 500 output tokens each

AIHubMix$2.957

100 long-document requests with 100,000 input and 2,000 output tokens each

AIHubMix$8.957

Hy4 Preview features

Use Hy4 Preview with LiteLLM

Call Hy4 Preview through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

Python SDK
from litellm import completion

response = completion(
    model="aihubmix/hy4-preview",
    messages=[{"role": "user", "content": "Hello!"}],
)
Proxy config.yaml
model_list:
  - model_name: hy4-preview
    litellm_params:
      model: aihubmix/hy4-preview
      # credentials: see the provider's LiteLLM docs page
Call the proxy
curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "hy4-preview",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Hy4 Preview FAQ

How much does Hy4 Preview cost?

Hy4 Preview costs $0.845 per 1M input tokens and $2.535 per 1M output tokens on AIHubMix, with cache reads at $0.04225 per 1M tokens.

What is the context window of Hy4 Preview?

Hy4 Preview has a 1,048,576-token context window and returns up to 64,000 tokens per response.

Which providers offer Hy4 Preview?

Hy4 Preview is available from AIHubMix through LiteLLM, using the model name aihubmix/hy4-preview.

How do I call Hy4 Preview with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="aihubmix/hy4-preview", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

What features does Hy4 Preview support?

Hy4 Preview supports function calling, structured output, reasoning, prompt caching and web search.

When did LiteLLM add Hy4 Preview?

Hy4 Preview was added to LiteLLM's model price file on September 16, 2026.

Sources

Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:

LiteLLM docs: AIHubMix.

Provider pages: AIHubMix.