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Qwen3.5 Flash API

Alibaba·Text

Qwen3.5 Flash — ultra-fast Alibaba model with 1M context

1M Context 65.5K out 29 req/24h $0.00 24h volume
Input
Text
Output
Text

Pricing

Cheapest live price, per 1 million tokens.

Input / 1M tokens

$0.13550%

OpenRouter $0.090

Output / 1M tokens

$0.54050%

OpenRouter $0.360

Capabilities · 5

Tool calling JSON mode JSON schema Streaming Seed

Specifications

Context window
1M
Max output
66K
Type
Text
Creator
Alibaba
Live sellers
54
Requests / 24h
29

Price history · 60 days

Sep 5 — Nov 4▼ 0.00% vs last week
Compare all top models

Estimated monthly cost

30 days at the cheapest live price.

AI Chatbot
1,000 req/day · 2K in · 0.5K out
$16.20/mo
Coding Copilot
500 req/day · 8K in · 2K out
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AI Agent
100 req/day · 50K in · 5K out
$28.35/mo

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-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)

print(response.choices[0].message.content)

About Qwen3.5 Flash

Qwen3.5 Flash is a language model developed by Alibaba. It's particularly well-suited for orchestrating tool-using agents that call APIs and external services, producing structured outputs for reliable data extraction and handling large contexts of up to 1M tokens. Its 1M-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, Qwen3.5 Flash costs $0.135 per 1M input tokens and $0.540 per 1M output tokens on Qubax. A typical 1,000 chat requests (2K tokens in, 500 out) come to about $0.54. 54 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.

Function Calling
Build agents and tool-using applications
Long Documents
Process entire codebases, books, or lengthy conversations
Chat & Conversation
Build AI chatbots and conversational assistants
Content Generation
Write articles, code, emails, and more

Similar-priced alternatives

Frequently asked questions

How much does the Qwen3.5 Flash API cost?

On Qubax, Qwen3.5 Flash costs $0.135 per 1M input tokens and $0.540 per 1M output tokens.

Is the Qwen3.5 Flash API compatible with OpenAI?

Yes. Qubax provides an OpenAI-compatible API. You can use Qwen3.5 Flash 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 Qwen3.5 Flash 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 Qwen3.5 Flash?

Qwen3.5 Flash supports a context window of 1M tokens, allowing you to process large documents, codebases, or long conversations in a single request.

What can I build with Qwen3.5 Flash?

You can use Qwen3.5 Flash to build autonomous agents that call external tools and APIs, generate structured JSON output for data pipelines 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 Qwen3.5 Flash on Qubax?

Responses stream token by token. 54 sellers serve it, so if one is slow or down the request moves to the next.

Qwen3.5 Flash vs Moondream: Moondream 3.1: which should I choose?

Qwen3.5 Flash by Alibaba and Moondream: Moondream 3.1 by Other are both strong models in a similar price tier. Qwen3.5 Flash is well-suited for general-purpose language tasks. Moondream: Moondream 3.1 comes from a different lab and may have different strengths depending on your workload. On Qubax, Qwen3.5 Flash starts at $0.135/1M input tokens versus Moondream: Moondream 3.1's $0.135/1M — making Qwen3.5 Flash 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 Qwen3.5 Flash for commercial projects?

Yes. Qwen3.5 Flash 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 Qwen3.5 Flash on Qubax?

Live market prices

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.

Get started free →

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Qwen3.5 Flash

$0.135 in · $0.540 out

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