| Name | Lines of code | Maintainability | Test coverage |
| kiwi/systems/encoders/predictor.py | 331 | C 7 hrs | B 88% |
| kiwi/lib/train.py | 344 | B 4 hrs | A 92% |
| kiwi/systems/encoders/xlmroberta.py | 347 | B 6 hrs | D 66% |
| kiwi/systems/tlm_system.py | 355 | B 6 hrs | B 86% |
| kiwi/systems/encoders/xlm.py | 388 | C 1 day | C 72% |
| kiwi/lib/evaluate.py | 423 | D 2 days | B 87% |
| kiwi/systems/outputs/quality_estimation.py | 430 | C 1 day | B 83% |
| kiwi/systems/qe_system.py | 507 | C 1 day | B 85% |
| kiwi/lib/search.py | 558 | D 1 day | B 86% |