References 381% CONFIDENCEOverall confidence: 81%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]95%
  OpenAI Model Release Notes: GPT-5.3 Instant update (March 16, 2026)

  help.openai.com· Posted Sep 19, 2026· Starts Mar 16, 2026· 32% of score

  OpenAI's^[3] own model release notes date this entry March 16, 2026

• [2]70%
  GPT-5.3 Instant update (Devicebase)

  devicebase.net· Added Oct 5, 2026· Added by@ThePinGang· 34% of score

  Seen in search results^[1]

• [3]80%
  GPT-5.3 Instant (OpenAI)

  openai.com· Added Oct 5, 2026· Added by@ThePinGang· 34% of score

  Seen in search results: launch announcement^[1]

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