Qwen3.5-Flash
Qwen3.5-Flash is a reasoning model from Qwen released on Feb 23, 2026. It reads text, images and video and writes text, with a 1M token context window and up to 66K tokens per reply.
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It costs $0.065 per million input tokens and $0.26 per million output tokens.
It supports tool calling and structured JSON output.
11 providers serve it, including Vercel AI Gateway, AIHubMix and Alibaba (China). The lowest input price is $0.0282 per million tokens at AIHubMix.
- Modalities
- In / out price
- $0.065 / $0.26 per 1M
- Context
- 1M
- Max output
- 66K
- Released
- Feb 23, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Qwen3.5-Flash pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.065 / 1M tokens | |
|---|---|---|
| Output | $0.26 / 1M tokens |
Qwen3.5-Flash providers
11 providers serve it, including Vercel AI Gateway, AIHubMix and Alibaba (China). The lowest input price is $0.0282 per million tokens at AIHubMix. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| Alibaba First party | $0.10 | $0.40 | $0.01 | 1M | 66K |
| Vercel AI Gateway | $0.10 | $0.40 | $0.01 | 1M | 64K |
| AIHubMix | $0.0282 | $0.282 | $0.0028 | 1M | 66K |
| Alibaba (China) | $0.029 | $0.287 | – | 1M | 66K |
| Merge Gateway | $0.029 | $0.287 | $0.0029 | 1M | 250K |
| Kilo Gateway | $0.065 | $0.26 | – | 1M | 66K |
| EmpirioLabs AI | $0.09 | $0.368 | $0.09 | 1M | 33K |
| NanoGPT | $0.10 | $0.40 | $0.05 | 992K | 66K |
| Ofox | $0.10 | $0.40 | $0.01 | 1M | 66K |
| OrcaRouter | $0.10 | $0.40 | – | 1M | 66K |
| ZenMux | $0.10 | $0.40 | – | 1.02M | 1.02M |
What Qwen3.5-Flash costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Qwen3.5-Flash through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning - Temperature
temperature
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Qwen3.5-Flash questions
How much does the Qwen3.5-Flash API cost?
$0.065 per million input tokens and $0.26 per million output tokens. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Qwen3.5-Flash?
1,000,000 tokens of input, and it can write up to 65,536 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Qwen3.5-Flash?
11 providers serve it, including Vercel AI Gateway, AIHubMix and Alibaba (China). The lowest input price is $0.0282 per million tokens at AIHubMix. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Qwen3.5-Flash support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is Qwen3.5-Flash open source?
No. Qwen serves it through an API only, so you cannot download the weights or host it yourself.
When was Qwen3.5-Flash released?
Feb 23, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Qwen3.5-Flash?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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