DeepSeek V4.1 Flash F2 vs Seed 2.0 Lite: cost comparison
Prices updated 2026-11-06 · computed from live provider data
Short answer: DeepSeek V4.1 Flash F2 is cheaper on a
3:1 input/output blend — $0.525 per million tokens versus
$0.858, a 39% difference.
DeepSeek V4.1 Flash F2 offers the larger context window at 1,048,576 tokens, against 229,096 for Seed 2.0 Lite.
Head to head
| DeepSeek V4.1 Flash F2 | Seed 2.0 Lite | |
|---|---|---|
| Input, per 1M tokens | $0.300 | $0.310 |
| Output, per 1M tokens | $1.20 | $2.50 |
| Blended 3:1, per 1M | $0.525 | $0.858 |
| Context window | 1,048,576 | 229,096 |
| Vendor | wally | empiriolabs |
Monthly cost at real volumes
| Workload (input / output) | DeepSeek V4.1 Flash F2 | Seed 2.0 Lite |
|---|---|---|
| 1M in / 250K out | $0.600 | $0.935 |
| 10M in / 2.5M out | $6.00 | $9.35 |
| 100M in / 25M out | $60.00 | $93.50 |
Which should you pick?
Pick DeepSeek V4.1 Flash F2 when you need the longer context window (1,048,576 vs 229,096 tokens). Pick DeepSeek V4.1 Flash F2 when price per token dominates your workload — high-volume classification, extraction, or batch summarisation.