The results are out for the 2026 Python Typing Survey (1,794 responses).

The full writeup can be read at: https://engineering.fb.com/2026/10/27/developer-tools/python-typing-survey-2026-ai-tools-checker-landscape/

TLDR: - Newer type checkers gained market share, and speed was the most common reason for choosing a checker (56.5%). - The share of respondents who said types make AI-generated code more reliable rose from 18.5% in 2025 to 38.4% in 2026. - AI tools wrote type hints for 42.5% of respondents, and 24.4% said an AI coding tool ran their type checker. - Missing type information in third-party libraries remained the most common difficulty, reported by 65.1% of respondents. - Better Callable syntax was the most requested missing feature, at 45.7%.