Seed 1.8
vercel / bytedance/seed-1.8
Input price
$0.25
per 1M tokens
Output price
$2
per 1M tokens
Context
256K
tokens
Capabilities
✓ Reasoning✓ Tool calls✓ Image input— Open weights
| cache read | $0.05 |
| Context | 256,000 tokens |
| max output | 32,768 tokens |
| Released | 2025-12-28 |
| Data updated | 2025-12-28 |
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.