AI Writes Lean 4 SQLite-Compatible Database Engine SQLeanite

Using roughly 100 million tokens of Codex and Claude calls, a developer built SQLeanite, a Lean 4 research database engine that is byte-compatible with SQLite, runs only 2-10x slower, and unifies storage algorithms, executable semantics, and mathematical proofs in one codebase.

2026-08-18 ~ 2026-08-18 · 2 related posts

• Using Codex and Claude to build a verified SQLite-compatible DB engine — OfirPress · 2026-08-18
• SQLeanite: SQLite-compatible database core implemented in Lean 4 — OfirPress · 2026-08-18