Qwen3.5-Flash API Pricing
Alibaba (Qwen) · context window 1M · prices updated 2026-09-09
Where Qwen3.5-Flash sits on price
At $0.26 per million output tokens, Qwen3.5-Flash is a budget tier model — 8.5× cheaper than the median output price of $2.20, which puts it cheaper than 89% and pricier than 11% of the models we track. It sits 6th cheapest of the 53 Alibaba (Qwen) models we track. Output costs 4.0× input, the usual spread — trim both, starting with the answer length.
What real workloads cost on Qwen3.5-Flash
These three workloads are the ones teams actually run on a budget-priced model — a $0.26/1M model is not bought for the same job as one ten times the price.
| Workload | Per request | Per month |
|---|---|---|
| High-volume classification — 200K requests/day (400 in / 20 out) Short output, huge volume: the input price dominates the bill. | $0 | $187 |
| Small app — 1K requests/day (500 in / 150 out) The baseline most side projects actually run at. | $0.0001 | $2.15 |
| Long-context analysis — 200 runs/day (250K in / 4K out) Only possible on large-context models; input cost is nearly the whole bill. | $0.0173 | $104 |
Model your exact traffic in the API cost calculator — it preloads Qwen3.5-Flash with caching and batch options.
Qwen3.5-Flash price history
Qwen3.5-Flash's price has not moved since we began tracking it on Aug 2, 2026 — 38 days of stability in a market where 69 of the 333 models we track have repriced over the same period, including 16 of Alibaba (Qwen)'s own 53 models.
Change-points from our daily price snapshots (tracking since Aug 2, 2026; intraday moves between snapshots are not captured).
Qwen3.5-Flash vs GLM 5.3 Flash
The closest-priced alternative from another vendor is GLM 5.3 Flash (Z.ai (GLM)) — 4% cheaper on output, with $0.01 more per million input tokens. When two models land this close on price, the decision is quality on your own workload, not the price sheet: run 50 real requests through both and compare.
See GLM 5.3 Flash pricing →Cheaper alternatives
More Alibaba (Qwen) models
Frequently asked questions
› How much does the Qwen3.5-Flash API cost?
Qwen3.5-Flash costs $0.065 per million input tokens and $0.26 per million output tokens and no discounted cached-input tier. That works out to roughly 3,846,154 output tokens per dollar.
› What does the high-volume classification workload cost on Qwen3.5-Flash?
High-volume classification — 200K requests/day (400 in / 20 out) costs about $0 per request and $187 per month on Qwen3.5-Flash. Short output, huge volume: the input price dominates the bill.
› What does it cost to fill Qwen3.5-Flash's 1M context window?
Sending 1M of input in a single request costs $0.065 at $0.065 per million tokens — before any output. There is no cached-input tier on this model, so every repeat of that context is billed at full price. This is why large context windows are cheap to advertise and expensive to actually use.
› Is Qwen3.5-Flash worth the price?
Qwen3.5-Flash is in the cheapest end of the market — cheaper than 89% of the models we track. At this price the question is not cost but capability: it is a good fit for classification, extraction, routing and bulk summarisation, and a poor fit for multi-step reasoning where a wrong answer costs more than the tokens saved.