Qwen3.5 397b A17b API

Run qwen/qwen3.5-397b-a17b through FastInfra's OpenAI-compatible API. Pay per token, no subscription, routed to the cheapest available provider.

Read the docs
Pricing

Qwen3.5 397b A17b pricing

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

Direction Price per 1M tokens
Input$0.47
Output$3.15
Availability

Served by 4 providers

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

Provider Upstream model ID
openrouter qwen/qwen3.5-397b-a17b
together Qwen/Qwen3.5-397B-A17B
deepinfra Qwen/Qwen3.5-397B-A17B
siliconflow Qwen/Qwen3.5-397B-A17B
Quickstart

Call Qwen3.5 397b A17b 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/qwen3.5-397b-a17b",
    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/qwen3.5-397b-a17b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
FAQ

Qwen3.5 397b A17b — common questions

How much does the qwen/qwen3.5-397b-a17b API cost?

On FastInfra, qwen/qwen3.5-397b-a17b costs $0.4725/1M input, $3.15/1M output tokens. Billing is per token used, with no subscription.

Is qwen/qwen3.5-397b-a17b compatible with the OpenAI SDK?

Yes. FastInfra exposes qwen/qwen3.5-397b-a17b 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/qwen3.5-397b-a17b?

qwen/qwen3.5-397b-a17b is available from 4 provider(s): openrouter, together, deepinfra, siliconflow. Requests route to DeepInfra by default (cheapest); append ":provider" to the model ID to pin one.