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AIQuiet 12d · day 12

Open source AI models lag frontier by 4.4 months, report finds

A new analysis quantifies the performance gap between publicly available models and the latest proprietary systems.

What to know

  • Open source AI models lag frontier proprietary systems by 4.4 months in capability
  • Report released September 15, 2026 and shared across Hacker News and Mastodon

airplanesandOS Report publisher

How it unfolded 1 development · click the chart to see its coverage articlesposts

Peak 3 pieces in 3h at Sep 15, 11 AM; 3 pieces over 13 days (1 article · 2 posts) Sep 15, 11 AM — 3 pieces · 1 article · 2 posts — Hacker News 1, Mastodon 1, Newswires 1Sep 15, 2 PM — quietSep 15, 5 PM — quietSep 15, 8 PM — quietSep 15, 11 PM — quietSep 16, 2 AM — quietSep 16, 5 AM — quietSep 16, 8 AM — quietSep 16, 11 AM — quietSep 16, 2 PM — quietSep 16, 5 PM — quietSep 16, 8 PM — quietSep 16, 11 PM — quietSep 17, 2 AM — quietSep 17, 5 AM — quietSep 17, 8 AM — quietSep 17, 11 AM — quietSep 17, 2 PM — quietSep 17, 5 PM — quietSep 17, 8 PM — quietSep 17, 11 PM — quietSep 18, 2 AM — quietSep 18, 5 AM — quietSep 18, 8 AM — quietSep 18, 11 AM — quietSep 18, 2 PM — quietSep 18, 5 PM — quietSep 18, 8 PM — quietSep 18, 11 PM — quietSep 19, 2 AM — quietSep 19, 5 AM — quietSep 19, 8 AM — quietSep 19, 11 AM — quietSep 19, 2 PM — quietSep 19, 5 PM — quietSep 19, 8 PM — quietSep 19, 11 PM — quietSep 20, 2 AM — quietSep 20, 5 AM — quietSep 20, 8 AM — quietSep 20, 11 AM — quietSep 20, 2 PM — quietSep 20, 5 PM — quietSep 20, 8 PM — quietSep 20, 11 PM — quietSep 21, 2 AM — quietSep 21, 5 AM — quietSep 21, 8 AM — quietSep 21, 11 AM — quietSep 21, 2 PM — quietSep 21, 5 PM — quietSep 21, 8 PM — quietSep 21, 11 PM — quietSep 22, 2 AM — quietSep 22, 5 AM — quietSep 22, 8 AM — quietSep 22, 11 AM — quietSep 22, 2 PM — quietSep 22, 5 PM — quietSep 22, 8 PM — quietSep 22, 11 PM — quietSep 23, 2 AM — quietSep 23, 5 AM — quietSep 23, 8 AM — quietSep 23, 11 AM — quietSep 23, 2 PM — quietSep 23, 5 PM — quietSep 23, 8 PM — quietSep 23, 11 PM — quietSep 24, 2 AM — quietSep 24, 5 AM — quietSep 24, 8 AM — quietSep 24, 11 AM — quietSep 24, 2 PM — quietSep 24, 5 PM — quietSep 24, 8 PM — quietSep 24, 11 PM — quietSep 25, 2 AM — quietSep 25, 5 AM — quietSep 25, 8 AM — quietSep 25, 11 AM — quietSep 25, 2 PM — quietSep 25, 5 PM — quietSep 25, 8 PM — quietSep 25, 11 PM — quietYesterday, 2 AM — quietYesterday, 5 AM — quietYesterday, 8 AM — quietYesterday, 11 AM — quietYesterday, 2 PM — quietYesterday, 5 PM — quietYesterday, 8 PM — quietYesterday, 11 PM — quietToday, 2 AM — quietToday, 5 AM — quietToday, 8 AM — quietToday, 11 AM — quietToday, 2 PM — quietToday, 5 PM — quietToday, 8 PM — quiet 1
Sep 16Sep 17Sep 18Sep 19Sep 20Sep 21Sep 22Sep 23Sep 24Sep 25yesterdaynow · 11:43 PM ET
  1. 1
    “V1.1 state of open source- OS 4.4 months behind frontier…”
    — Report title · source
    1. first by HN Frontpage, 12d ago