ByteDance Seed Seed 1.6 Flash vs DeepSeek V4 Flash 0423
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
- DeepSeek V4 Flash 0423 is 1.2× cheaper at a typical mix of 3 input tokens per output token.
- DeepSeek V4 Flash 0423 accepts longer prompts: 1M vs 262K tokens.
- DeepSeek V4 Flash 0423 output costs $0.095 per 1M via Baidu, against the list price of $0.182.
- DeepSeek V4 Flash 0423 is the newer model (released 2026-04-24).
| Seed 1.6 Flash | DeepSeek V4 Flash 0423 | |
|---|---|---|
| Vendor | ByteDance Seed | DeepSeek |
| Released | 2025-12-23 | 2026-04-24 |
| Input / 1M | $0.075 | $0.091 |
| Output / 1M | $0.30 | $0.182 |
| Cached input / 1M | — | $0.018 |
| Blended / 1M (3:1) | $0.131 | $0.114 |
| Context | 262K | 1M |
| Max output | 33K | 944K |
| Accepts | text, image, video | text |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 1 | 17 |
| Cheapest provider, output | $0.30 | $0.095 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | — | Operational |
Cost calculator
Seed 1.6 Flash
$9.00 per month$0.30 per day
DeepSeek V4 Flash 0423
$8.19 per month$0.27 per day
DeepSeek V4 Flash 0423 saves $0.81 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
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