DeepSeek V4 Flash (1-flash-1017) vs Qwen3.8 Flash
Price and specs side by side · USD per 1M tokens · verified 2026-10-23
// side by side
| metric | DeepSeek V4 Flash (1-flash-1017) | Qwen3.8 Flash |
|---|
| input / 1M | $0.15 | $0.15 |
| output / 1M | $0.60 | $0.47 |
| blended (3:1) | $0.2625 | $0.23 |
| cache read / 1M | $0.003 | $0.016 |
| context | 1.05M | 1M |
| max output | 393.2K | 131.1K |
| input types | text · image | text · image · video |
| reasoning | yes | yes |
| tool calling | yes | yes |
| structured output | yes | yes |
| open weights | yes | no |
| released | 2026-10-17 | 2026-08-26 |
| knowledge cutoff | 2025-05 | n/a |
| lab | DeepSeek | Alibaba (Qwen) |
// monthly cost scenarios
| workload | tokens in / out | DeepSeek V4 Flash (1-flash-1017) | Qwen3.8 Flash |
|---|
| Chatbot | 10M / 2M | $2.70 | $2.44 |
| RAG app | 50M / 5M | $10.50 | $9.85 |
| Coding agent | 20M / 10M | $9.00 | $7.70 |
// verdict
- Qwen3.8 Flash is 12.4% cheaper than DeepSeek V4 Flash (1-flash-1017) on a blended 3:1 input/output basis.
- DeepSeek V4 Flash (1-flash-1017) has the larger context window (1.05M vs 1M tokens).
- Chatbot (10M input / 2M output tokens per month): Qwen3.8 Flash costs $2.44 vs $2.70 for DeepSeek V4 Flash (1-flash-1017), saving $0.26 per month.
- RAG app (50M input / 5M output tokens per month): Qwen3.8 Flash costs $9.85 vs $10.50 for DeepSeek V4 Flash (1-flash-1017), saving $0.65 per month.
- Coding agent (20M input / 10M output tokens per month): Qwen3.8 Flash costs $7.70 vs $9.00 for DeepSeek V4 Flash (1-flash-1017), saving $1.30 per month.
// DeepSeek V4 Flash (1-flash-1017) or Qwen3.8 Flash: which one to choose
- Choose Qwen3.8 Flash for cost-sensitive, high-volume workloads.
- Choose DeepSeek V4 Flash (1-flash-1017) for long documents and large codebases (1.05M-token context).
- Choose DeepSeek V4 Flash (1-flash-1017) if you want open weights you can self-host.