| Suggestion Time | License | LSP Support | Ruleset | Multi-Lingual/Multi-Dialect | |
|---|---|---|---|---|---|
| Harper | 10ms | Apache-2.0 | ✅ | Custom | ❌ |
| LanguageTool | 650ms | LGPL-2.1 | 🟨 Through ltex-ls | Custom + N-Gram Based + LLM Based | 🟨 Not simultaneously |
| hunspell | LGPL/GPL/MPL tri-license | ❌ | hunspell/MySpell | 🟨 Not simultaneously | |
| Grammarly | 4000ms | Proprietary | 🟨 Through grammarly-language-server | Proprietary | ❌ |