ByteDance Seed Seed 1.6 Flash vs Tencent Hy3
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 1.6 Flash is 1.1× cheaper at a typical mix of 3 input tokens per output token.
- Both accept prompts up to 262K tokens.
- Hy3 is the newer model (released 2026-07-06).
| Seed 1.6 Flash | Hy3 | |
|---|---|---|
| Vendor | ByteDance Seed | Tencent |
| Released | 2025-12-23 | 2026-07-06 |
| Input / 1M | $0.075 | $0.083 |
| Output / 1M | $0.30 | $0.33 |
| Cached input / 1M | — | $0.021 |
| Blended / 1M (3:1) | $0.131 | $0.144 |
| Context | 262K | 262K |
| Max output | 33K | 128K |
| Accepts | text, image, video | text |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 1 | 5 |
| Cheapest provider, output | $0.30 | $0.33 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | — | — |
Cost calculator
Seed 1.6 Flash
$9.00 per month$0.30 per day
Hy3
$9.90 per month$0.33 per day
Seed 1.6 Flash saves $0.90 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare Seed 1.6 Flash with