Laguna S 2.1 (free) is cheaper than GLM 5.3 Flash at $0/M vs $0.15/M input tokens.
| Spec | GLM 5.3 Flash | Laguna S 2.1 (free) |
|---|---|---|
| Input price | $0.15/M tokens | Free |
| Output price | $0.5/M tokens | Free |
| Context window | 1.3M tokens | 262K tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | Yes (1 provider) |
| Released | Aug 2026 | Jul 2026 |
Not enough votes to call it. On the specs, GLM 5.3 Flash has the edge: newer, bigger context window, major provider backing.
Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.