DeepSeek V4.1 Flash Flex vs Qwen3.5 397B Fast
DeepSeek V4.1 Flash Flex is cheaper on output tokens, while DeepSeek V4.1 Flash Flex offers a larger context window. Choose DeepSeek V4.1 Flash Flex or Qwen3.5 397B Fast based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek V4.1 Flash Flex | Qwen3.5 397B Fast |
|---|---|---|
| Provider | Neuralwatt | Neuralwatt |
| Input / 1M tokens | $0.10 | $0.69 |
| Output / 1M tokens | $0.39 | $4.14 |
| Context window | 1M | 262K |
| Parameters | — | — |
| Open weights | Yes | Yes |
| Released | Sep 2026 | Feb 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.