curl --request POST \
  --url https://direct.evolink.ai/v1/responses \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "qwen3.8-max-preview",
  "input": "What can you do?"
}
'

{
  "id": "resp_xxxxxxxx",
  "object": "response",
  "status": "completed",
  "model": "qwen3.8-max-preview",
  "output": [
    {}
  ],
  "usage": {
    "input_tokens": 45,
    "output_tokens": 63,
    "total_tokens": 108,
    "input_tokens_details": {
      "cached_tokens": 0
    },
    "output_tokens_details": {
      "reasoning_tokens": 0
    },
    "prompt_tokens_details": {
      "cached_tokens": 0,
      "cache_creation_input_tokens": 0
    }
  }
}

{
  "error": {
    "code": 400,
    "message": "Invalid request parameters",
    "type": "invalid_request_error"
  }
}

{
  "error": {
    "code": 401,
    "message": "Invalid or expired token",
    "type": "authentication_error"
  }
}

{
  "error": {
    "code": 402,
    "message": "Insufficient credits",
    "type": "insufficient_quota"
  }
}

{
  "error": {
    "code": 123,
    "message": "<string>",
    "type": "<string>",
    "param": "<string>"
  }
}

{
  "error": {
    "code": 123,
    "message": "<string>",
    "type": "<string>",
    "param": "<string>"
  }
}

Responses API

Qwen3.8-Max-Preview - Responses API

🚧 This model is not yet available, stay tuned

Call Qwen3.8-Max-Preview using the OpenAI Responses protocol
Flexible input: input can be a string or a Chat-format message array (supporting multimodal input_text / input_image)
Multi-turn conversation: pass previous_response_id to link to the previous response, and the server automatically assembles the context (the response id is valid for 7 days)
Session caching: enable by adding x-dashscope-session-cache: enable to the request header (default disable); see usage.input_tokens_details.cached_tokens for hits
Thinking effort: controlled via reasoning.effort
Streaming output: when stream=true, returned as Responses events (response.output_text.delta / response.completed, etc.)

POST

responses

curl --request POST \
  --url https://direct.evolink.ai/v1/responses \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "qwen3.8-max-preview",
  "input": "What can you do?"
}
'

{
  "id": "resp_xxxxxxxx",
  "object": "response",
  "status": "completed",
  "model": "qwen3.8-max-preview",
  "output": [
    {}
  ],
  "usage": {
    "input_tokens": 45,
    "output_tokens": 63,
    "total_tokens": 108,
    "input_tokens_details": {
      "cached_tokens": 0
    },
    "output_tokens_details": {
      "reasoning_tokens": 0
    },
    "prompt_tokens_details": {
      "cached_tokens": 0,
      "cache_creation_input_tokens": 0
    }
  }
}

{
  "error": {
    "code": 400,
    "message": "Invalid request parameters",
    "type": "invalid_request_error"
  }
}

{
  "error": {
    "code": 401,
    "message": "Invalid or expired token",
    "type": "authentication_error"
  }
}

{
  "error": {
    "code": 402,
    "message": "Insufficient credits",
    "type": "insufficient_quota"
  }
}

{
  "error": {
    "code": 123,
    "message": "<string>",
    "type": "<string>",
    "param": "<string>"
  }
}

{
  "error": {
    "code": 123,
    "message": "<string>",
    "type": "<string>",
    "param": "<string>"
  }
}

BaseURL note: The default BaseURL is https://direct.evolink.ai, which offers better support for text models and long connections. https://api.evolink.ai is the primary multimodal endpoint; use it when your request includes image input.Session caching: The Responses API enables server-side session caching via the x-dashscope-session-cache: enable request header to reduce multi-turn latency and cost.

Authorizations

Authorization

string

header

required

##All APIs require Bearer Token authentication##

Get API Key:

Visit API Key Management Page to get your API Key

Add to request header:

Authorization: Bearer YOUR_API_KEY

Headers

x-dashscope-session-cache

enum<string>

default:disable

Session caching switch. When set to enable, the server automatically caches the conversation context to reduce multi-turn inference latency and cost.

Available options:

enable,

disable

Body

application/json

model

enum<string>

required

Chat model name

Available options:

qwen3.8-max-preview

Example:

"qwen3.8-max-preview"

input

required

Model input. Can be a string (plain text) or a Chat-format message array (supporting multimodal input_text / input_image).

instructions

string

Inserted as a system instruction at the start of the context. When using previous_response_id, the previous turn's instructions are not carried into this turn.

previous_response_id

string

Unique ID of the previous response (the response id, valid for 7 days). Used to link multi-turn conversations; the server automatically retrieves and combines that turn's input and output as context.

max_output_tokens

integer

Maximum number of output tokens to generate this time (including thinking).

reasoning

object

Thinking control.

Show child attributes

store

boolean

default:true

Whether to store this response.

true (default): can be referenced by previous_response_id
false: not stored and cannot be referenced later

stream

boolean

default:false

Whether to return a Responses event stream.

temperature

number

Sampling temperature, range [0, 2].

Required range: 0 <= x <= 2

top_p

number

Nucleus sampling parameter, range (0, 1].

Required range: 0 <= x <= 1

tools

object[]

List of tools. Supports built-in tools (web_search for web search, web_extractor for web extraction, code_interpreter for code interpretation) and custom function tools.

Show child attributes

Response

Generated successfully

string

Unique ID of this response (valid for 7 days, can be used as previous_response_id)

Example:

"resp_xxxxxxxx"

object

string

Example:

"response"

status

string

Response status

Example:

"completed"

model

string

Example:

"qwen3.8-max-preview"

output

object[]

Array of output items (including message / reasoning / built-in tool calls, etc.)

usage

object

Token usage statistics.

Show child attributes

Qwen3.8-Max-Preview - Full Parameter Documentation Qwen3.8-Max-Preview - Anthropic-Compatible API

Image Series

Video Series

Audio Series

Text Series

Account Management

Task Management

File Management

Qwen3.8-Max-Preview - Responses API

Authorizations

Headers

Body

Response