Qwen3.5 35B-A3B API

About Qwen3.5 35B-A3B

Qwen3.5 35B-A3B is an efficient native vision-language model with sparse MoE routing, deep thinking, and text, image, and video input.

Supports text, image, and video inputs, thinking mode, function calling, structured output, and web search through tool_web_search. Web search adds $0.01 per request when enabled. Thinking tokens are billed as output tokens.

Qwen3.5 35B-A3B specs

Model ID

qwen3-5-35b-a3b

Provider

Alibaba Cloud

Category

Text Generation

Context window

256K tokens

Max output

64,000 tokens

Input

text, image, video

Output

text

Region

China

Endpoints

POST /v1/chat/completions
POST /v1/responses
POST /v1/messages

Qwen3.5 35B-A3B API pricingSave up to 77%

Live pay-as-you-go rates from the EmpirioLabs catalog. You are billed only for what you use, with no monthly minimum.

How to call the Qwen3.5 35B-A3B API

Qwen3.5 35B-A3B serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id qwen3-5-35b-a3b. Get an API key from the EmpirioLabs dashboard.

curl https://api.empiriolabs.ai/v1/chat/completions \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen3-5-35b-a3b",
    "messages": [
      {"role": "user", "content": "Write a haiku about the ocean."}
    ]
  }'

from openai import OpenAI

client = OpenAI(
    base_url="https://api.empiriolabs.ai/v1",
    api_key="YOUR_EMPIRIOLABS_API_KEY",
)

response = client.chat.completions.create(
    model="qwen3-5-35b-a3b",
    messages=[{"role": "user", "content": "Write a haiku about the ocean."}],
)
print(response.choices[0].message.content)

Qwen3.5 35B-A3B API parameters

Request parameters supported by the Qwen3.5 35B-A3B API on EmpirioLabs. Defaults apply when a field is omitted.

Good to know

Supports text, image, and video input. Web search is available through tool_web_search and adds $0.01 per request when enabled. Thinking tokens are billed as output tokens.

Qwen3.5 35B-A3B API: common questions

How much does the Qwen3.5 35B-A3B API cost?

On EmpirioLabs, Qwen3.5 35B-A3B is billed pay as you go: Input <=128K $0.057 (was $0.25); 128K-256K $0.229 (was $0.25) per 1M prompt tokens; Output <=128K $0.459 (was $2.00); 128K-256K $1.835 (was $2.00) per 1M generated tokens; Web search $0.01 per request when enabled. The live rate card on this page always matches what the API charges.

What is the context window of Qwen3.5 35B-A3B?

Qwen3.5 35B-A3B supports a 256K-token context window with up to 64,000 output tokens per response.

Is the Qwen3.5 35B-A3B API OpenAI-compatible?

Yes. Qwen3.5 35B-A3B serves the OpenAI-compatible Chat Completions API, so existing OpenAI SDKs work by pointing base_url at https://api.empiriolabs.ai/v1 and setting the model id to qwen3-5-35b-a3b.

Can I try Qwen3.5 35B-A3B in the browser before integrating?

Yes. The EmpirioLabs playground runs Qwen3.5 35B-A3B in the browser with the same parameters the API exposes, so you can test prompts before writing code.

How do I get a Qwen3.5 35B-A3B API key?

Create an EmpirioLabs account, then generate a key under API Keys in the dashboard. Billing is pay-as-you-go credits, so you only pay for the requests you make.