Seed 2.1 Pro vs GLM-5.3-Flash
GLM-5.3-Flash is cheaper on output tokens, while GLM-5.3-Flash offers a larger context window. Choose Seed 2.1 Pro or GLM-5.3-Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Seed 2.1 Pro | GLM-5.3-Flash |
|---|---|---|
| Provider | Volcengine Ark | Volcengine Ark |
| Input / 1M tokens | $0.89 | $0.12 |
| Output / 1M tokens | $4.45 | $0.42 |
| Context window | 256K | 1M |
| Parameters | — | — |
| Open weights | No | Yes |
| Released | Jun 2026 | Aug 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.