Seed 1.8 vs Seed 2.0 Pro
Seed 1.8 is cheaper on output tokens. Choose Seed 1.8 or Seed 2.0 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Seed 1.8 | Seed 2.0 Pro |
|---|---|---|
| Provider | Volcengine Ark | Volcengine Ark |
| Input / 1M tokens | $0.12 | $0.47 |
| Output / 1M tokens | $1.19 | $2.37 |
| Context window | 256K | 256K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Dec 2025 | Feb 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.