Qwen 2 1.5 B Instruct vs DeepSeek Flash Latest: cost comparison
Prices updated 2026-10-31 · computed from live provider data
Short answer: Qwen 2 1.5 B Instruct is cheaper on a
3:1 input/output blend — $0.020 per million tokens versus
$0.072, a 72% difference.
DeepSeek Flash Latest offers the larger context window at 1,048,576 tokens, against 32,768 for Qwen 2 1.5 B Instruct.
Head to head
| Qwen 2 1.5 B Instruct | DeepSeek Flash Latest | |
|---|---|---|
| Input, per 1M tokens | $0.020 | $0.021 |
| Output, per 1M tokens | $0.020 | $0.228 |
| Blended 3:1, per 1M | $0.020 | $0.072 |
| Context window | 32,768 | 1,048,576 |
| Vendor | together_ai | deepseek |
Monthly cost at real volumes
| Workload (input / output) | Qwen 2 1.5 B Instruct | DeepSeek Flash Latest |
|---|---|---|
| 1M in / 250K out | $0.025 | $0.077 |
| 10M in / 2.5M out | $0.250 | $0.775 |
| 100M in / 25M out | $2.50 | $7.75 |
Which should you pick?
Pick DeepSeek Flash Latest when you need the longer context window (1,048,576 vs 32,768 tokens). Pick Qwen 2 1.5 B Instruct when price per token dominates your workload — high-volume classification, extraction, or batch summarisation.