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AlibabaTextVision

qwen3.5-flash

qwen3.5-flash is Alibaba's model at $0.03 input and $0.13 output per million tokens, with a 1000K context window. On a typical 3:1 input-to-output mix that blends to roughly $0.055 per million tokens, placing it in the budget band of the 68 models tracked here — cheaper than 99% of them.

MODEL OVERVIEW
Context window1000K
Input price$0.03 / 1M
Output price$0.13 / 1M
Output speed200 tok/s
Quality score82
Data updatedUpdated Aug 2026
Price verified2026-08-06 · OpenRouter

By price, qwen3.5-flash ranks 2nd cheapest of 68 on input and 2nd on output. Its quality score of 82 ranks 45th of 68, and on value (quality score ÷ output price) it ranks 2nd of 68. Its blended rate sits 98% below the catalog average.

In real billing terms: a support chatbot handling 50,000 turns a month (2,000 input / 500 output tokens each) costs about $6.25 per month on qwen3.5-flash, while a RAG workload of 20,000 queries (8,000 input / 800 output tokens each) runs about $6.88. Because output is priced 4.3× input here, long-generation tasks scale cost fastest — cap output length before you optimise anything else.

A 1000K context window holds roughly 1,333 pages of A4 text (at ~750 tokens per page), ranking 22nd of 68 here. That is enough to drop in an entire technical manual or several source files at once, which suits long-document summarization and codebase-wide analysis. Output runs at about 200 tok/s (5th fastest of 68), fast enough for real-time interaction and high-throughput batches.

We track 6 Alibaba models, and qwen3.5-flash's blended rate sits 93% below that provider's average. Among the models tracked here it is already one of the cheapest options at this quality level. Going the other way, Hunyuan HY3 scores 87 on quality for about 81% more.

The closest model in Alibaba's line-up is qwen-turbo ($0.05 input / $0.20 output, quality 74). Against it, qwen3.5-flash scores 8 points higher on quality, runs 40 tok/s slower (about 17%), costs 59% less blended. When two models sit this close on price, the deciding factor is usually the quality ceiling — run both against your real prompts before picking.

Estimated monthly cost

Monthly API spend across four common workloads, next to the cheapest model we track.

WorkloadUsage assumptionThis modelCheapest model
Support chatbot2,000 input / 500 output tokens per turn, 50,000 turns per month$6.25$3.00
RAG document Q&A8,000 input / 800 output tokens per query, 20,000 queries per month$6.88$3.84
Coding assistant12,000 input / 2,000 output tokens per request, 10,000 requests per month$6.20$3.20
Batch summarization4,000 input / 400 output tokens per item, 200,000 items per month$34$19

Derived directly from the rates on this page. Excludes prompt caching, batch discounts and free tiers.

How it compares

The alternatives worth benchmarking alongside it, from the same dataset.

ModelProviderBlended /1MQualityPrice delta
qwen3.5-flashAlibaba$0.05582
Hunyuan HY3Higher qualityTencent$0.1087+81%
qwen-turboSame providerAlibaba$0.08874+59%
qwen3.5Best value overallAlibaba$0.1191+105%

Best for

ChatbotAffordableFastLong Context

Modalities

TextVision

Where it fits — and where it doesn't

Good fit

  • Chat and support: natural multi-turn conversation for user-facing products.
  • Long documents: a 1000K window ingests a full contract, paper or large codebase in one pass.
  • High throughput and real-time UX: 200 tok/s keeps streamed responses feeling instant.
  • High-volume, cost-sensitive batch work: low rates suit classification, tagging and summarization at scale.
  • Multimodal input: handles images, screenshots and scanned documents directly.

Poor fit

  • No obvious disqualifiers — still benchmark on your own data before committing.

Frequently asked questions

How much does the qwen3.5-flash API cost?

qwen3.5-flash costs $0.03 per million input tokens and $0.13 per million output tokens. On a 3:1 input-to-output mix that blends to about $0.055 per million tokens.

What does qwen3.5-flash cost per month?

It depends on volume. Using the four worked scenarios on this page: a support chatbot runs about $6.25/month, RAG document Q&A about $6.88/month, a coding assistant about $6.20/month, and batch summarization about $34/month. Plug your own token counts into the cost calculator for a tailored figure.

How large is the qwen3.5-flash context window?

1000K tokens — roughly 1,333 pages of A4 text at ~750 tokens per page, ranking 22nd of the 68 models tracked here.

What is qwen3.5-flash best suited for?

Tagged use cases: chatbot, cheap, fast, long-context. Chat and support: natural multi-turn conversation for user-facing products. Less suitable: No obvious disqualifiers — still benchmark on your own data before committing.

How current is this qwen3.5-flash pricing?

Pricing here was last verified on 2026-08-06 against OpenRouter. llmprice.app runs a daily collection job, but providers can change rates between runs — confirm against Alibaba's official pricing page before you commit.

Estimate the real cost of this model

Bring tokens per request and monthly volume into the calculator to compare total model costs.

Open cost calculator

Related models

Continue by provider and use case.

Alibaba

qwen-turbo

Input price$0.05
Output price$0.2
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Alibaba

qwen3.5-plus

Input price$0.4
Output price$2.4
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Alibaba

qwen-plus

Input price$0.26
Output price$0.78
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Pricing, speed and quality scores change over time. Confirm official documentation before production use.