ByteDance Seed Seed-2.0-Mini vs DeepSeek V4.1 Flash
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Seed-2.0-Mini is 1.2× cheaper at a typical mix of 3 input tokens per output token.
- DeepSeek V4.1 Flash accepts longer prompts: 1M vs 262K tokens.
- DeepSeek V4.1 Flash output costs $0.18 per 1M via Decart, against the list price of $0.42.
- DeepSeek V4.1 Flash is the newer model (released 2026-09-10).
| Seed-2.0-Mini | DeepSeek V4.1 Flash | |
|---|---|---|
| Vendor | ByteDance Seed | DeepSeek |
| Released | 2026-02-26 | 2026-09-10 |
| Input / 1M | $0.10 | $0.14 |
| Output / 1M | $0.40 | $0.42 |
| Cached input / 1M | — | $0.0042 |
| Blended / 1M (3:1) | $0.175 | $0.21 |
| Context | 262K | 1M |
| Max output | 131K | 131K |
| Accepts | text, image, video | text, image |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 1 | 41 |
| Cheapest provider, output | $0.40 | $0.18 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | 1468 ±79 |
| Vendor API status | — | Operational |
Cost calculator
Seed-2.0-Mini
$12.00 per month$0.40 per day
DeepSeek V4.1 Flash
$14.70 per month$0.49 per day
Seed-2.0-Mini saves $2.70 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
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