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Qwen3.5 Flash
Qwen
Alibaba's fastest model with 256k context window at near-zero cost. Best for ultra high-volume tasks.
Input price$0.01 / 1M tokens
Output price$0.05 / 1M tokens
Context window256k tokens
Last updated2026-04-21
Quick calculator
Per request
$0.000035
Daily
$0.3500
Monthly
$10.50
per month · 30-day estimate
Yearly
$127.75
Tips to reduce cost
- →Use prompt caching to reuse repeated system prompts
- →Trim whitespace and reduce verbose instructions
- →Use a smaller model for classification or routing tasks
- →Batch async requests to get 50% discount (OpenAI/Anthropic)
- →Cache identical requests at the application layer
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About Qwen3.5 Flash
Qwen3.5 Flash is a budget large language model from qwen, priced at $0.01/1M input tokens and $0.05/1M output tokens. It is 100% cheaper than the market average and best suited for ultra high-volume tasks. The 256k context window handles long documents, extended conversations, and large code files comfortably.
For most production workloads, the cost breakdown is dominated by input tokens (system prompts, context, retrieved documents) rather than output. At this price point, Qwen3.5 Flash is one of the most cost-effective options for high-volume tasks.
Frequently Asked Questions
How much does Qwen3.5 Flash cost per 1,000 tokens?
Qwen3.5 Flash costs $0.0000 per 1,000 input tokens and $0.0001 per 1,000 output tokens.
What is Qwen3.5 Flash's context window?
Qwen3.5 Flash supports a context window of 256k tokens, which is suitable for long documents and multi-turn conversations.
How does Qwen3.5 Flash compare to GPT-4o on price?
Qwen3.5 Flash is 100% cheaper than the market average on input tokens. At $0.01/1M input vs $2.50/1M for GPT-4o, the cost difference becomes significant at scale — 10,000 requests/day with 1,000 input tokens each costs $3/month with Qwen3.5 Flash vs $750/month with GPT-4o.