🎉 LTX 2.5 IS LIVE! 🎉 | The wait is over. We’ve just pushed LTX 2.5 to production, and it’s our best update yet.

⚡️ GPT-OSS-120b is now live | Blazing fast - better than TogetherAI

👉 Get $5 welcome credit | One API for every frontier model | Ends soon.

Qwen3.5 35b a3b API

Run qwen/qwen3.5-35b-a3b through FastInfra's API. Pay per token, no subscription, routed to the cheapest available provider.

Pricing

Qwen3.5 35b a3b pricing

Billed per token used. Prices sync automatically from wholesale providers.

Direction Price per 1M tokens
Input$0.15
Output$1.05
Availability

Served by 4 providers

Requests route to DeepInfra by default (cheapest). Pin a specific provider with the :provider suffix.

Provider Upstream model ID
deepinfra Qwen/Qwen3.5-35B-A3B
openrouter qwen/qwen3.5-35b-a3b
together Qwen/Qwen3.5-35B-A3B
siliconflow Qwen/Qwen3.5-35B-A3B
Quickstart

Call Qwen3.5 35b a3b in 30 seconds

Works with any OpenAI SDK — change the base URL and API key only.

Python

from openai import OpenAI

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

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

curl

curl https://api.fastinfra.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen3.5-35b-a3b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
FAQ

Qwen3.5 35b a3b — common questions

How much does the qwen/qwen3.5-35b-a3b API cost?

On FastInfra, qwen/qwen3.5-35b-a3b costs $0.147/1M input, $1.05/1M output tokens. Billing is per token used, with no subscription.

Is qwen/qwen3.5-35b-a3b compatible with the OpenAI SDK?

Yes. FastInfra exposes qwen/qwen3.5-35b-a3b through an OpenAI-compatible endpoint at https://api.fastinfra.ai/v1 — point any OpenAI SDK at that base URL with a FastInfra API key and keep your existing code.

Which providers serve qwen/qwen3.5-35b-a3b?

qwen/qwen3.5-35b-a3b is available from 4 provider(s): deepinfra, openrouter, together, siliconflow. Requests route to DeepInfra by default (cheapest); append ":provider" to the model ID to pin one.