OpenAI Introduces Simulated Reasoning Models with Multimodal Capabilities

In a significant breakthrough for artificial intelligence innovation, OpenAI has launched two cutting-edge simulated reasoning (SR) models, o3 and o4-mini, featuring full tool access. These models are particularly notable for their advanced reasoning abilities combined with multimodal capabilities, allowing the integration of visual and textual inputs. OpenAI claims this release represents a monumental leap in the capabilities of AI models, with o3 described as having “near-genius level” reasoning by some early testers.

Key Advancements and Features

On April 16, 2025, OpenAI announced the availability of the o3 and o4-mini models, which are accessible to ChatGPT Plus, Pro, and Team users, with Enterprise and Edu access expected shortly after. These models are a part of a broader strategy to enhance the reasoning capabilities of AI by enabling simultaneous use of multiple tools, such as web browsing and coding. The o3 model, for example, can autonomously gather data, execute Python scripts, and create visual presentations, making it a versatile tool for complex analytical tasks.

A standout feature of these models is their ability to “think with images”—a multimodal approach enabling the interpretation of various visual inputs, including diagrams and sketches, even when these are not of optimal quality. This feature, alongside the comprehensive tool access, distinguishes these models from their predecessors like GPT-4o and GPT-4.5.

Performance and Reception

The models have shown promising results on various benchmarks. OpenAI reports that o3 performs 20 percent better than prior models in tasks involving programming and creative ideation, and it excels in specific academic assessments, such as the American Invitational Mathematics Examination. However, these figures await independent verification to confirm their accuracy fully.

Despite the impressive performance, users must remain cautious of mistakes. Experts highlight the importance of verifying the accuracy of outputs, especially for users operating outside their expertise. As with any AI technology, the potential for errors, albeit reduced, persists.

OpenAI’s Future Vision

OpenAI’s commitment to innovation is further exemplified by the introduction of Codex CLI, an experimental coding agent. This terminal-based tool enables users to run code directly from their console, representing OpenAI’s ambition to create autonomous agents capable of handling complex tasks.

Moreover, the accessible pricing structure aims to bring these advanced models to a broader audience. Offering cost-effective options without sacrificing capability, OpenAI is poised to democratize access to powerful AI tools, fostering innovation across diverse fields.

Conclusion: A Step Towards the Future

The release of OpenAI’s o3 and o4-mini models marks a transformative step in AI development, offering unprecedented capabilities to its users. While these models are positioned to solve complex problems and support diverse applications, the necessity for careful usage and verification remains pertinent. As we advance into this new era of AI, OpenAI’s latest offerings promise to play a pivotal role in shaping the landscape of artificial intelligence and its practical applications.