OpenAI Releases o3 462yb Pro Reasoning-Focused AI Model, Comes With Improved Capabilities and Tool Use

OpenAI is making o3-pro AI model available to the ChatGPT Pro subscribers and via API. 1h372f

Written by Siddharth Suvarna | Updated: 11 June 2025 12:16 IST

OpenAI Releases o3-Pro Reasoning-Focused AI Model, Comes With Improved Capabilities and Tool Use

Photo Credit: Reuters 4yb11

OpenAI CEO Sam Altman has also announced a price drop for the o3 AI model in API

Highlights

ChatGPT Enterprise and Edu subscribers will get the model next week
o3-pro is capable of using web search, memory, and computer vision tools
OpenAI says o3-pro is more performant than the o3 AI model

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OpenAI released its o3-pro artificial intelligence (AI) model on Tuesday. Dubbed as the company's most advanced reasoning model, it is only available to the most tier of subscribers. The o3-pro model will be available both in ChatGPT as well as via the AI firm's application programming interface (API). The model is said to be more performant compared to o3 in subject areas such as science, education, programming, data analysis, and writing. The AI model was released just hours after OpenAI CEO Sam Altman announced an 80 percent discount in the input and output prices of o3.

OpenAI Releases o3-pro For ChatGPT Pro Subscribers 332025

In a post on X (formerly known as Twitter), the official handle of OpenAI announced the rollout of the o3-pro model. Currently it is available to only ChatGPT Pro subscribers, and to developers via an API. Enterprise and Edu s will get access to it one week later.

The o3-pro AI model will replace the o1-pro model in the model picker option for Pro subscribers. Notably, the flagship-tier reasoning model from the o3 family arrives nearly two months after the San Francisco-based AI firm introduced the baseline o3 and the o4-mini models.

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OpenAI says the latest reasoning model outperforms the non-pro variant in multiple areas. Based on internal evaluations with human testers, the company said the o3-pro achieved a 66.7 percent win rate in personal writing over the o3 model. It also achieved 62.7 percent win rate against the baseline model in computer programming. Notably, the company did not share any benchmark tests comparing the model against competitors such as Gemini 2.5 Pro or Claude Opus 4.

The o3-pro AI model is also capable of tool use, and it can access tools such as web search, file analysis, computer vision with reasoning, use Python, access memory to personalise responses, and more. However, the company also highlighted that due to access to tools, the model also takes slightly longer than o1-pro to generate responses. As such, OpenAI is asking s to choose it when accuracy of an answer is more important than speed.

There are some limitations with the large language model (LLM) as well. As per the OpenAI, the o3-pro model cannot generate images and does not temporary chats or Canvas. Notably, temporary chats are disabled for the model due to a technical issue, and could be fixed soon.

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Further reading: LLM

Akash Dutta Email Akash Dutta

Akash Dutta is a Senior Sub Editor at Gadgets 360. He is particularly interested in the social impact of technological developments and loves reading about emerging fields such as AI, metaverse, and fediverse. In his free time, he can be seen ing his favourite football club - Chelsea, watching movies and anime, and sharing ionate opinions on food. More