CSM 1B vs Hy3 preview
Both have similar output pricing, while Hy3 preview offers a larger context window. Choose CSM 1B or Hy3 preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | CSM 1B | Hy3 preview |
|---|---|---|
| Provider | Sesame | Tencent TokenHub |
| Input / 1M tokens | $7.00 | $0.00 |
| Output / 1M tokens | $0.00 | $0.00 |
| Context window | 4K | 256K |
| Parameters | — | — |
| Open weights | — | Yes |
| Released | — | Apr 2026 |
| LMArena (Chatbot Arena) Elo score | — | 1401 |
| LMArena WebDev Elo score | — | 1357 |
FAQ
Is CSM 1B or Hy3 preview cheaper?
CSM 1B and Hy3 preview have comparable output pricing.
Which has the larger context window, CSM 1B or Hy3 preview?
Hy3 preview has the larger context window (256K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.