HY4 Preview

curl https://api.tokely.me/v1/chat/completions \
  -H "Authorization: Bearer $TOKELY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "hy4-preview",
    "messages": [{"role": "user", "content": "Hello!"}],
    "max_tokens": 1024
  }'

Set TOKELY_API_KEY to your dashboard key. Requests require a funded Tokely balance. Base URL: https://api.tokely.me/v1.

Capabilities & limits

Context window

1,048,576 tokens

Model max output

64,000 tokens

Cached input price

$1.90152 per 1M tokens · Official: $0.042

Provider

Tencent

API model ID

hy4-preview

Category

Text

Endpoints

POST /v1/chat/completions

Tokely max output

64,000 tokens / request, including reasoning tokens

Default output

256 tokens. Set an explicit limit for longer responses.

Request limits

16 MB JSON body (including base64) · 128 messages · 32 function tools

Rate limit

60 requests / minute / account, across its keys

Supported input

Text and function tool results

Model modalities

text. Tokely accepts text, inline images and PDFs where listed above; audio and video input are not enabled.

The context includes your instructions, conversation history, tool definitions and generated output. Keep the input and requested output within the model’s context window.

API reference

Authenticate with Authorization: Bearer YOUR_TOKELY_API_KEY. Use an OpenAI SDK with the Tokely base URL.

model

Required string: hy4-preview

messages

An array of system, developer, user, assistant and tool messages.

max_tokens

Optional integer, 1–64,000. Defaults to 256.

stream

Streaming has not been verified for this model.

reasoning_effort

Optional reasoning effort. Supported values depend on the model; omit to use its default.

tools

Function definitions executed by your application. Provider-hosted tools are not enabled.

The response contains choices with message or tool_calls, finish_reason, and usage (prompt_tokens, completion_tokens, total_tokens). Streaming sends chat completion chunks.

400 / 415

Invalid request, parameter, endpoint for this model, or content type.

401 / 403

Invalid, revoked or restricted API key.

402

Insufficient account balance or API key budget.

429

Request limit reached. Retry after the indicated delay.

502 / 503 / 504

Upstream failure, temporary service unavailability or request timeout.

Compare nearby prices