DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...
Model details →DeepSeek: DeepSeek V4.1 Flash vs Qwen: Qwen Plus 0728 (thinking)
DeepSeek: DeepSeek V4.1 Flash wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
Qwen Plus 0728, based on the Qwen3 foundation model, is a 1 million context hybrid reasoning model with a balanced performance, speed, and cost combination.
Model details →Side-by-side comparison
| Capability | DeepSeek: DeepSeek V4.1 Flash | Qwen: Qwen Plus 0728 (thinking) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.0M | 1M | 🏆 DeepSeek: DeepSeek V4.1 Flash |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.15 | $0.26 | 🏆 DeepSeek: DeepSeek V4.1 Flash |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.60 | $0.78 | 🏆 DeepSeek: DeepSeek V4.1 Flash |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | — | 🏆 DeepSeek: DeepSeek V4.1 Flash |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is DeepSeek: DeepSeek V4.1 Flash better than Qwen: Qwen Plus 0728 (thinking)?
DeepSeek: DeepSeek V4.1 Flash wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between DeepSeek: DeepSeek V4.1 Flash and Qwen: Qwen Plus 0728 (thinking)?
Input: $0.15 vs $0.26 per 1M tokens. Output: $0.60 vs $0.78 per 1M tokens.
What context windows do DeepSeek: DeepSeek V4.1 Flash and Qwen: Qwen Plus 0728 (thinking) support?
DeepSeek: DeepSeek V4.1 Flash supports up to 1.0M tokens. Qwen: Qwen Plus 0728 (thinking) supports up to 1M tokens.
Do both DeepSeek: DeepSeek V4.1 Flash and Qwen: Qwen Plus 0728 (thinking) support tool calling?
DeepSeek: DeepSeek V4.1 Flash: yes. Qwen: Qwen Plus 0728 (thinking): yes.