Pyrefly vs mypy vs ty: Which Python Type Checker Should You Use in 2026?
Pyrefly 1.0 checks 1.85M lines/sec with 87.8% conformance, mypy 2.0 adds parallelism, ty hits sub-10ms updates. Full benchmarks and migration guide.
Mypy
mypy vs Pyright vs ty: Python Type Checker Comparison (2026)
mypy vs Pyright vs ty: speed, conformance and IDE support. Pyright leads at 98% spec conformance; ty is 10-60x faster but passes only 53% of tests.