arXiv caps submissions at two per person per month starting Oct 1, 2026
arXiv will limit submissions to two papers per person per calendar month beginning Oct 1, 2026 (the existing cap of three active submissions remains). The rule — which counts rejected papers toward the limit unless deleted — responds to a surge in submissions (40,363 in Sept 2026) partly driven by AI tools and is intended to ease overload on volunteer moderators handling many low-quality, micro-result, and AI-written papers.