DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context training process, reaching …
Model details →DeepSeek: DeepSeek V3.1 vs Qwen: Qwen Plus 0728 (thinking)
DeepSeek: DeepSeek V3.1 wins on 2 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 V3.1 | Qwen: Qwen Plus 0728 (thinking) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 33K | 1M | 🏆 Qwen: Qwen Plus 0728 (thinking) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.15 | $0.26 | 🏆 DeepSeek: DeepSeek V3.1 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.75 | $0.78 | 🏆 DeepSeek: DeepSeek V3.1 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is DeepSeek: DeepSeek V3.1 better than Qwen: Qwen Plus 0728 (thinking)?
DeepSeek: DeepSeek V3.1 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between DeepSeek: DeepSeek V3.1 and Qwen: Qwen Plus 0728 (thinking)?
Input: $0.15 vs $0.26 per 1M tokens. Output: $0.75 vs $0.78 per 1M tokens.
What context windows do DeepSeek: DeepSeek V3.1 and Qwen: Qwen Plus 0728 (thinking) support?
DeepSeek: DeepSeek V3.1 supports up to 33K tokens. Qwen: Qwen Plus 0728 (thinking) supports up to 1M tokens.
Do both DeepSeek: DeepSeek V3.1 and Qwen: Qwen Plus 0728 (thinking) support tool calling?
DeepSeek: DeepSeek V3.1: yes. Qwen: Qwen Plus 0728 (thinking): yes.