Qwen3.5 Flash: Cheapest Capable LLM API of 2026

Published 2026-07-20 · NovAI Team

If cost is your top constraint, Qwen3.5 Flash is hard to beat: $0.063 per 1M input tokens. Here's how it compares and when to use it.

Cheapest models on NovAI (per 1M tokens)

At $0.063/1M input, Qwen3.5 Flash is one of the lowest-cost capable models available anywhere.

Best use cases

• High-volume classification, tagging, extraction, and routing.
• Chatbots and summarization at scale.
• Cost-sensitive background jobs where you don't need a flagship model.

Quickstart

from openai import OpenAI

client = OpenAI(
    api_key="nvai-your-key",
    base_url="https://aiapi-pro.com/v1"
)

resp = client.chat.completions.create(
    model="qwen3.5-flash",
    messages=[{"role": "user", "content": "Hello!"}]
)
print(resp.choices[0].message.content)

Frequently Asked Questions

What is the cheapest LLM API in 2026?

Qwen3.5 Flash at $0.063 per 1M input tokens ($0.336 output) is among the cheapest capable LLM APIs in 2026. Doubao-Seed-2.0-Lite ($0.075) and Hunyuan hy3-preview ($0.127) are close alternatives — all available on NovAI.

Is Qwen3.5 Flash good enough for production?

For high-volume tasks like classification, extraction, summarization, and routing, yes. For complex multi-step reasoning, step up to qwen3.7-max or DeepSeek V4-Pro.

How do I start using Qwen3.5 Flash?

Register at NovAI for $2 free credit, then call model qwen3.5-flash through the OpenAI-compatible endpoint at https://aiapi-pro.com/v1.