Qwen 3.5 9B API
Alibaba·Text
Qwen 3.5 9B
Pricing
Cheapest live price, per 1 million tokens.
Input / 1M tokens
OpenRouter $0.044
Output / 1M tokens
$0.134 OpenRouter
Capabilities · 3
Specifications
- Context window
- 256K
- Max output
- 66K
- Type
- Text
- Creator
- Alibaba
- Live sellers
- 10
- Requests / 24h
- 33
Price history · 60 days
Estimated monthly cost
30 days at the cheapest live price.
Quick start
OpenAI-compatible — change the base URL and key. Get a key from the dashboard.
from openai import OpenAI
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="YOUR_QUBAX_API_KEY",
)
response = client.chat.completions.create(
model="qwen3-5-9b",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)About Qwen 3.5 9B
Qwen 3.5 9B is a language model developed by Alibaba. It's particularly well-suited for tackling complex, multi-step reasoning problems, orchestrating tool-using agents that call APIs and external services and handling large contexts of up to 256K tokens. Its 256K-token context window means you can pass in entire documents, codebases, or conversation histories without losing context. It can write up to 66K tokens in a single response.
As of Nov 4, 2026, Qwen 3.5 9B costs $0.067 per 1M input tokens and $0.124 per 1M output tokens on Qubax. A typical 1,000 chat requests (2K tokens in, 500 out) come to about $0.20. 10 independent compute providers currently serve it, so requests fail over automatically. Pay with USDC, USDT, BTC, ETH or 350+ other coins — no credit card required.
Similar-priced alternatives
Frequently asked questions
How much does the Qwen 3.5 9B API cost?
On Qubax, Qwen 3.5 9B costs $0.067 per 1M input tokens and $0.124 per 1M output tokens.
Is the Qwen 3.5 9B API compatible with OpenAI?
Yes. Qubax provides an OpenAI-compatible API. You can use Qwen 3.5 9B as a drop-in replacement by changing your base URL to https://api.qubax.ai/v1 and using your Qubax API key. It works with Cline, Cursor, OpenCode, Hermes Agent, and any tool that supports OpenAI APIs.
How do I pay for Qwen 3.5 9B API usage?
Qubax uses prepaid crypto credits. Top up with USDC, USDT, BTC, ETH, SOL or 350+ other coins and your balance is deducted as you use the API. No credit card or KYC required.
What is the context window of Qwen 3.5 9B?
Qwen 3.5 9B supports a context window of 256K tokens, allowing you to process large documents, codebases, or long conversations in a single request.
What can I build with Qwen 3.5 9B?
You can use Qwen 3.5 9B to tackle complex multi-step reasoning tasks, build autonomous agents that call external tools and APIs and process long documents and entire codebases. Because it's served through Qubax's OpenAI-compatible API, integration into existing apps, agents, or workflows takes just a few lines of code.
How fast and reliable is Qwen 3.5 9B on Qubax?
Responses stream token by token. 10 sellers serve it, so if one is slow or down the request moves to the next.
Qwen 3.5 9B vs GPT 5 Mini: which should I choose?
Qwen 3.5 9B by Alibaba and GPT 5 Mini by OpenAI are both strong models in a similar price tier. Qwen 3.5 9B excels at complex reasoning. GPT 5 Mini comes from a different lab and may have different strengths depending on your workload. On Qubax, Qwen 3.5 9B starts at $0.067/1M input tokens versus GPT 5 Mini's $0.093/1M — making Qwen 3.5 9B the more cost-effective option for high-volume workloads. Both are available on Qubax with crypto payments and OpenAI-compatible APIs, so you can try each and switch freely.
Can I use Qwen 3.5 9B for commercial projects?
Yes. Qwen 3.5 9B on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.
Why use Qwen 3.5 9B on Qubax?
7.3% cheaper
Providers compete on price — you get the cheapest healthy seller.
Pay with crypto
350+ coins (BTC, ETH, SOL, USDT, USDC). No card, no KYC.
OpenAI & Anthropic compatible
Drop-in base URL. Works with Cline, Cursor, Claude Code, OpenAI and Anthropic SDKs.