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OpenKey

Qwen3.5-35B-A3B

QwenReleased Feb 25, 2026

The Qwen3.5 Series 35B-A3B is a native vision-language model designed with a hybrid architecture that integrates linear attention mechanisms and a sparse mixture-of-experts model, achieving higher inference efficiency. Its overall...

Try in playground
Context window
262K tokens
Max output
82K tokens
Input
text, image, video
Output
text
Tokenizer
Qwen3
Released
Feb 25, 2026
Reasoning
optional

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$0.140$0.0042$0.144
Output$1.00$0.030$1.03
Cache read$0.050$0.0015$0.052

Supported parameters

  • frequency_penalty
  • include_reasoning
  • logit_bias
  • logprobs
  • max_tokens
  • min_p
  • presence_penalty
  • reasoning
  • repetition_penalty
  • response_format
  • seed
  • stop
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_k
  • top_logprobs
  • top_p

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model qwen/qwen3.5-35b-a3b.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen3.5-35b-a3b",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="qwen/qwen3.5-35b-a3b",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.openkey.ai/v1",
  apiKey: process.env.OPENKEY_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "qwen/qwen3.5-35b-a3b",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does Qwen3.5-35B-A3B cost via API?
Through OpenKey, Qwen3.5-35B-A3B costs $0.144 per 1M input tokens and $1.03 per 1M output tokens. That is the provider price ($0.140 / $1.00) plus a flat 3% fee — nothing else.
What is Qwen3.5-35B-A3B's context window?
Qwen3.5-35B-A3B accepts up to 262K tokens of context and returns up to 82K tokens per request.
Is Qwen3.5-35B-A3B OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "qwen/qwen3.5-35b-a3b" using any OpenAI SDK — only the base URL and API key change.
What inputs does Qwen3.5-35B-A3B support?
Qwen3.5-35B-A3B accepts text, image, video input and produces text output.

More from Qwen

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