Qwen3.5-Flash pricing & benchmarks
Qwen3.5-Flash is available from Alibaba at $0.065 per million input tokens and $0.260 per million output tokens ($0.114 blended at 3:1). It accepts up to 1,000,000 tokens of context. The Qwen3.5 native vision-language Flash models are built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency. Compared to the...
Pricing
Per million tokens · OpenRouter
Input$0.065
Output$0.260
Blended (3:1)$0.114
Specification
qwen/qwen3.5-flash-02-23
Context window1M
Max output66K
ReleasedFeb 2026
LicenceProprietary
Modalitiesin:text, in:image, in:video, out:text
Benchmarks
Independently run — not vendor self-reports. Every score links its source.
| Benchmark | Score | Config | Run | Source |
|---|---|---|---|---|
| GPQA Diamond | 82.3% ±2.7 | thinking effort | 2026-08-07 | Independently run · Epoch AI |
| FrontierMath T1–3 | 18.2% ±2.3 | no thinking effort | 2026-08-28 | Independently run · Epoch AI |
| OTIS Mock AIME | 84.4% ±5.5 | thinking effort | 2026-08-07 | Independently run · Epoch AI |
Scores published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0.
Cheaper models that score at least as well on GPQA Diamond
Strictly lower blended price AND an equal-or-higher GPQA Diamond score. One benchmark is one dimension — a model that wins here may still be weaker at your specific task.
| Model | Provider | Blended $/1M | GPQA Diamond | |
|---|---|---|---|---|
| Qwen3.7 Flash | Alibaba | $0.055 (−52%) | 82.3% | Compare → |
Compare Qwen3.5-Flash
FAQ
How much does Qwen3.5-Flash cost?
Qwen3.5-Flash costs $0.065 per million input tokens and $0.260 per million output tokens on OpenRouter. At a 3:1 input:output mix that blends to $0.114 per million tokens.
What is Qwen3.5-Flash's context window?
Qwen3.5-Flash accepts up to 1,000,000 tokens of context, and can generate up to 65,536 output tokens.
How good is Qwen3.5-Flash on benchmarks?
Qwen3.5-Flash scores 82.3% on GPQA Diamond, independently run and published by Epoch AI. 3 benchmark results are listed on this page, each with its run date and source.
Is there a cheaper model as good as Qwen3.5-Flash?
Yes — 1 model in our catalogue cost less per token than Qwen3.5-Flash and score at least as high on the same benchmark. The cheapest is Qwen3.7 Flash at $0.055 per million tokens blended.