GLM-4.5-Air vs Laguna-S-2.1
Specs, VRAM requirements and download trends — updated 23 October 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | GLM-4.5-Air | Laguna-S-2.1 |
|---|---|---|
| Deployment | Open weights · also via API | Open weights · also via API |
| Parameters | 110.5 B | 117.6 B |
| Architecture | Glm4MoeForCausalLM | LagunaForCausalLM |
| Context length | 131,072 | 1,048,576 |
| Licence | mit | openmdw-1.1 |
| Commercial use | Allowed | Unknown |
| Languages | 2 | — |
| Downloads 30d | 817,559 | 397,257 |
| Downloads all time | 5.5 M | 552 K |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2025-07-20 | 2026-07-13 |
| API input price / 1M tokens | $0.13 | $0.09 |
| API output price / 1M tokens | $0.85 | $0.18 |
| Est. cost per 1M input + 1M output tokens | $0.98 | $0.27 |
| Cached input / 1M tokens | $0.025 | $0.009 |
| AA Intelligence Index | 11.1 | — |
| AA Coding Index | — | — |
| AA Agentic Index | — | — |
| Max output tokens | 98,304 | 131,072 |
| API providers | 3 | 1 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
GLM-4.5-Air
$0.98
Laguna-S-2.1
$0.27
Laguna-S-2.1 is 3.6× cheaper at list price.
Download trend
Daily snapshots, last 88 days (28 Jul – 23 Oct)
818 K184 K
GLM-4.5-Air
Laguna-S-2.1
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
GLM-4.5-Air · fp16 @ 128K ctx
508.7 GB / 24 GB
Laguna-S-2.1 · fp16 @ 1024K ctx
2,516.3 GB / 24 GB