Qwen 3.5 Flash vs DeepSeek Pro Latest: cost comparison
Prices updated 2026-11-06 · computed from live provider data
Short answer: Qwen 3.5 Flash is cheaper on a
3:1 input/output blend — $0.160 per million tokens versus
$2.07, a 92% difference.
DeepSeek Pro Latest offers the larger context window at 1,048,576 tokens, against 995,904 for Qwen 3.5 Flash.
Head to head
| Qwen 3.5 Flash | DeepSeek Pro Latest | |
|---|---|---|
| Input, per 1M tokens | $0.090 | $0.093 |
| Output, per 1M tokens | $0.368 | $8.00 |
| Blended 3:1, per 1M | $0.160 | $2.07 |
| Context window | 995,904 | 1,048,576 |
| Vendor | empiriolabs | deepseek |
Monthly cost at real volumes
| Workload (input / output) | Qwen 3.5 Flash | DeepSeek Pro Latest |
|---|---|---|
| 1M in / 250K out | $0.182 | $2.09 |
| 10M in / 2.5M out | $1.82 | $20.93 |
| 100M in / 25M out | $18.20 | $209 |
Which should you pick?
Pick DeepSeek Pro Latest when you need the longer context window (1,048,576 vs 995,904 tokens). Pick Qwen 3.5 Flash when price per token dominates your workload — high-volume classification, extraction, or batch summarisation.