> ## Content Index
> Fetch the complete content index at: https://www.theleftshift.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# OpenAI Rolls Out o3-pro Model, However, Delays Open-Weights Launch
- URL: https://www.theleftshift.com/openai-rolls-out-o3-pro-model-however-delays-open-weights-launch/
- Published: 2025-06-11T05:32:01.000Z
- Updated: 2025-06-11T05:33:49.000Z
- Description: The new model excels in academic tasks and integrates with tools for web browsing, file analysis, Python use, and memory personalisation.
- Author: The Left Shift Bureau
- Tags: AI Models, #a42, AI Startups

OpenAI has launched its latest language model, o3-pro, for all ChatGPT Pro and Team users, replacing the previous **o1-pro**. The model is now available via the model picker, with Enterprise and Edu users set to gain access next week.

Built on the same foundation as o3, o3-pro offers stronger performance across science, education, coding, data analysis, and writing. 

Like o1-pro, the new model excels in academic tasks and integrates with tools for web browsing, file analysis, Python use, and memory personalisation.

"OpenAI o3-pro has access to tools that make ChatGPT useful—it can search the web, analyze files, reason about visual inputs, use Python, personalize responses using memory, and more," OpenAI said.

> Because you all asked: we're going to double the rate limits for o3 for Plus users. Rolling out as we speak. Now go do awesome stuff with it!
> 
> — Kevin Weil 🇺🇸 (@kevinweil) [June 10, 2025](https://twitter.com/kevinweil/status/1932565467736027597?ref%5Fsrc=twsrc%5Etfw&ref=theleftshift.com)

OpenAI also [slashed](https://community.openai.com/t/o3-is-80-cheaper-and-introducing-o3-pro/1284925?ref=theleftshift.com) o3 pricing by 80%, while o3-pro is offered at $20/million tokens for input and $80 for output—87% cheaper than o1-pro.

Meanwhile, CEO Sam Altman announced a delay in releasing OpenAI’s open-weights model due to a major research breakthrough, now expected later this summer.

"We are going to take a little more time with our open-weights model, i.e. expect it later this summer but not June," OpenAI CEO Sam Altman [said](https://x.com/sama/status/1932573231199707168?ref=theleftshift.com) on X.

Recently, the company said that it has surpassed [$10 billion in annual recurring revenue](https://www.theleftshift.com/openai-targets-125-bn-revenue-by-2029/) (ARR), less than three years after launching ChatGPT.

The figure includes revenue from ChatGPT consumer and business products and its API, but excludes licensing fees from Microsoft and one-time deals.