vs
One table to see how qwen3.5-flash (Alibaba) and deepseek-v4.1-flash (DeepSeek) differ. On EasyAPI both use the same endpoint and the same key; only the model name changes.
Quick verdict
- qwen3.5-flash has the lower input price, 61% cheaper than deepseek-v4.1-flash.
- qwen3.5-flash has the lower output price, 3% cheaper than deepseek-v4.1-flash.
Specs and pricing side by side
| Dimension | qwen3.5-flash | deepseek-v4.1-flash |
|---|---|---|
| Provider | Alibaba | DeepSeek |
| Type | Text | Text |
| Input price | ¥0.1649 | ¥0.4187 |
| Output price | ¥1.632 | ¥1.675 |
| Cache read | ¥0 | ¥0.0084 |
| Cache write | ¥0 | — |
| Capabilities | 文本 | 文本 |
| Endpoints | 1 | 1 |
Platform prices per million tokens (image / video models use their own units); your invoice is authoritative.
qwen3.5-flash
系列中端轻量款，主打低延迟与高吞吐，编码与工具调用能力可支撑 Agent 任务，适合实时交互与长文档处理场景。
deepseek-v4.1-flash
DeepSeek-V4.1-Flash 是 DeepSeek 当前主力模型，官方 API 模型名为 deepseek-flash。支持 1M 上下文与最大 384K 输出，默认可切换思考/非思考模式，具备图像理解、工具调用、JSON Output，并兼容 OpenAI 与 Anthropic API。
FAQ
- Which is cheaper, qwen3.5-flash or deepseek-v4.1-flash?
- qwen3.5-flash has the lower input price, 61% cheaper than deepseek-v4.1-flash.
- Can I call qwen3.5-flash and deepseek-v4.1-flash through the same API?
- Yes. Both are served through EasyAPI's OpenAI-compatible API. Point base_url at EasyAPI and swap the model name; no separate vendor accounts needed.