Qwen 3.5 Plus Variant 1 vs DeepSeek V4 Pro 0813: cost comparison
Prices updated 2026-11-07 · computed from live provider data
Short answer: Qwen 3.5 Plus Variant 1 is cheaper on a
3:1 input/output blend — $0.258 per million tokens versus
$1.25, a 79% difference.
DeepSeek V4 Pro 0813 offers the larger context window at 1,048,576 tokens, against 983,616 for Qwen 3.5 Plus Variant 1.
Head to head
| Qwen 3.5 Plus Variant 1 | DeepSeek V4 Pro 0813 | |
|---|---|---|
| Input, per 1M tokens | $0.115 | $0.117 |
| Output, per 1M tokens | $0.688 | $4.66 |
| Blended 3:1, per 1M | $0.258 | $1.25 |
| Context window | 983,616 | 1,048,576 |
| Vendor | empiriolabs | deepseek |
Monthly cost at real volumes
| Workload (input / output) | Qwen 3.5 Plus Variant 1 | DeepSeek V4 Pro 0813 |
|---|---|---|
| 1M in / 250K out | $0.287 | $1.28 |
| 10M in / 2.5M out | $2.87 | $12.81 |
| 100M in / 25M out | $28.70 | $128 |
Which should you pick?
Pick DeepSeek V4 Pro 0813 when you need the longer context window (1,048,576 vs 983,616 tokens). Pick Qwen 3.5 Plus Variant 1 when price per token dominates your workload — high-volume classification, extraction, or batch summarisation.