Qwen3.8-Max vs DeepSeek-V4-Pro-0813
At 6,000 chat requests per month (1,500 in / 400 out), DeepSeek-V4-Pro-0813 costs $21.38 and Qwen3.8-Max costs $29 — roughly 1.4× the spend.
| Spec | Qwen3.8-Max | DeepSeek-V4-Pro-0813 |
|---|---|---|
| Vendor | Alibaba Cloud (Qwen) | DeepSeek |
| Input / 1M tokens | $1.79 | $1.32 |
| Output / 1M tokens | $5.37 | $3.96 |
| Cached input / 1M | — | $0.044 |
| Context window | 1M tokens | 1M tokens |
| Max output | — | 384K tokens |
| Input modalities | text | text |
| Released | — | — |
| Cost per 1M cached reads | — | $0.044 |
Published list prices, last verified Oct 15, 2026. Source links are on each model's page.
Cost at three workloads
| Workload | Qwen3.8-Max | DeepSeek-V4-Pro-0813 | Difference |
|---|---|---|---|
| Customer-support reply (1,500 in / 400 out) | $0.0048 | $0.0036 | DeepSeek-V4-Pro-0813 cheaper by $0.0013 |
| Document summary (20,000 in / 1,000 out) | $0.041 | $0.030 | DeepSeek-V4-Pro-0813 cheaper by $0.011 |
| Code review pass (8,000 in / 1,500 out) | $0.022 | $0.017 | DeepSeek-V4-Pro-0813 cheaper by $0.0059 |
Which one fits your workload
- Long context: both accept 1M tokens, so context length does not separate them.
- Long answers: DeepSeek-V4-Pro-0813 has the lower output price ($3.96 vs $5.37 per million), which matters most when answers are long.
- High-volume, short answers: DeepSeek-V4-Pro-0813 is cheaper on input ($1.32 vs $1.79 per million).
- Caching: at least one of these vendors publishes a discounted cached-input rate; if you resend the same system prompt and context, model the cache-hit rate or you will overestimate cost.
This comparison uses published price and specification data only. It does not rank output quality — run your own evaluation on your own prompts before switching a production default.