A "Grammarly for LaTeX" built on Codex: diff-based edits under your control

Afinetheorem · x · 2026-09-22

A math blogger recommends Modern Editor, a Codex-powered editing tool (originally by Afinetheorem, now mostly extended by Stephen). It offers a diff-based UX: you can hand the AI a potentially very long list of personal stylistic preferences, and Codex proposes edits you can rapidly accept, reject, or modify one by one while staying in control — going well beyond a grammar checker. It's described as "Grammarly for LaTeX, powered by Codex."

Related event: Codex-Powered Modern Editor: Grammarly for LaTeX with Diff-Based Rewrites(2 posts)→

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