References 488% CONFIDENCEOverall confidence: 88%How well the pin's source and references back up its dates.Weighted average of how firmly 4 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: Launching OpenAI o3-pro—available now for Pro users in ChatGPT and in our API (June 10, 2025)

  help.openai.com· Posted Sep 19, 2026· Starts Jun 10, 2025· 31% of score

  OpenAI's^[2] own model release notes date this entry June 10, 2025

• [2]90%
  o3-pro Model | OpenAI API

  developers.openai.com· Added Sep 22, 2026· 32% of score

  OpenAI's^[1] API model page for o3-pro says it "uses more compute to think harder", is Responses-API only, and lists a 200,000 context window, 100,000 max output tokens and $20/$80 per 1M tokens.

• [3]80%
  OpenAI o3 - Wikipedia

  en.wikipedia.org· Added Sep 19, 2026· 31% of score

  States OpenAI^[1][2] released o3-pro on June 10, 2025.

• [4]85%
  OpenAI Releases o3-pro, an Upgrade to Its 'Most Intelligent Model'

  techrepublic.com· Published Jun 12, 2025· 5% of score

  Reports the o3-pro release, a version of o3 for Pro users.^[1]

Suggest a correction

Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most. A picture that shows something else, or shows it badly, is looked at too, and moved down or replaced.