# OpenAI Unveils o3, o4-mini: Smarter, Faster Reasoning AI Curated by [Ayaan Zaveri](/content/user/249647ab-6b2d-4679-adb9-f9f3097c71ad/index.html) Apr 19, 2025 ## Summary - OpenAI's new models, o3 and o4-mini, are designed to think more deeply and improve the quality of AI responses by combining advanced reasoning with full tool access [github.blog+1](https://github.blog/changelog/2025-04-16-openai-o3-and-o4-mini-are-now-available-in-public-preview-for-github-copilot-and-github-models/). - Both models can agentically use tools like web search, Python coding, and image understanding, enabling more independent, multi-step problems to be solved effectively [github.blog+1](https://github.blog/changelog/2025-04-16-openai-o3-and-o4-mini-are-now-available-in-public-preview-for-github-copilot-and-github-models/). - They incorporate "thinking with images", allowing the models to interpret, manipulate, and reason through visual information such as diagrams, sketches, and charts [github.blog+1](https://github.blog/changelog/2025-04-16-openai-o3-and-o4-mini-are-now-available-in-public-preview-for-github-copilot-and-github-models/). - o3 excels in coding, math, science, and visual perception, setting state-of-the-art (SOTA) benchmarks, while o4-mini is a cost-efficient, high-performance model for fast reasoning, particularly in math and coding tasks [github.blog+1](https://github.blog/changelog/2025-04-16-openai-o3-and-o4-mini-are-now-available-in-public-preview-for-github-copilot-and-github-models/). - Pricing varies, with o3 costing $10.00 per 1,000 tokens for input and $40.00 for output, while o4-mini is more affordable at $1.10 and $4.40 respectively [zdnet.com](https://www.zdnet.com/article/openai-just-dropped-new-o3-and-o4-mini-reasoning-ai-models-and-a-surprise-agent/). - They are safety-stressed, with refreshed safety training and rigorous safety evaluations, including safety prompts related to biological, cybersecurity, and AI risk factors [github.blog+1](https://github.blog/changelog/2025-04-16-openai-o3-and-o4-mini-are-now-available-in-public-preview-for-github-copilot-and-github-models/). ## Sources 12 references - [OpenAI o3 and o4-mini are now available in public preview for ...](https://github.blog/changelog/2025-04-16-openai-o3-and-o4-mini-are-now-available-in-public-preview-for-github-copilot-and-github-models/) (github.blog · Apr 17) - [This week's launches: o3, o4-mini, GPT-4.1, and Codex CLI](https://community.openai.com/t/this-weeks-launches-o3-o4-mini-gpt-4-1-and-codex-cli/1230312) (openai.com · Apr 17) - [OpenAI just dropped new o3 and o4-mini reasoning AI models - ZDNet](https://www.zdnet.com/article/openai-just-dropped-new-o3-and-o4-mini-reasoning-ai-models-and-a-surprise-agent/) (zdnet.com · Apr 17) ### Related Topics - [Technology](/content/category/technology/index.html) - [OpenAI](/content/category/openai/index.html) - [Coding](/content/category/coding/index.html) - [AI](/content/category/ai/index.html) ## Related Bites **OpenAI Buys Jony Ive's io for $6.5B to Design AI Hardware** [OpenAI is making a significant move into the hardware space by acquiring io, the secretive startup co founded by legendary former Apple design chief Jony Ive. The deal, valued at nearly $6.5B,](/content/bite/9a0deecd-9530-4848-8bc7-147d3cb7f660/index.html) **OpenAI Codex: Cloud-Based Software Engineering Agent Automates Coding Tasks** [OpenAI has launched Codex, a new cloud based software engineering agent designed to assist developers by automating various coding tasks.](/content/bite/9e8dbecf-814d-4d83-bf2b-b2c8cb29586a/index.html)