deepseek-ai/DeepSeek-V3.1-Terminus vs Qwen3.5 397B-A17B
deepseek-ai/DeepSeek-V3.1-Terminus is cheaper on output tokens, while Qwen3.5 397B-A17B offers a larger context window. Choose deepseek-ai/DeepSeek-V3.1-Terminus or Qwen3.5 397B-A17B based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | deepseek-ai/DeepSeek-V3.1-Terminus | Qwen3.5 397B-A17B |
|---|---|---|
| Provider | SiliconFlow | SiliconFlow |
| Input / 1M tokens | $0.27 | $0.39 |
| Output / 1M tokens | $1.00 | $2.34 |
| Context window | 164K | 262K |
| Parameters | — | 397B |
| Open weights | No | No |
| Released | Sep 2025 | Feb 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.