Both OpenAI o3 and o4-mini are also available to developers today via the Chat Completions API and Responses API. The Responses API supports reasoning summaries, the ability to preserve reasoning tokens around function calls for better performance, and will soon support built-in
GENERATIVE AI
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OpenAI o3 and o4-mini: New AI Models for Code and Math
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OpenAI o3 is a powerful model across multiple domains, setting a new standard for coding, math, science, and visual reasoning tasks. o4-mini is a remarkably smart model for its speed and cost-efficiency. This allows it to support significantly higher usage limits than o3, making
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OpenAI o3 o4-mini integrate images into chain of thought
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OpenAI o3 and o4-mini are our first models to integrate uploaded images directly into their chain of thought. That means they don’t just see an image—they think with it.
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OpenAI Introduces o3 and o4-mini Reasoning Models
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Introducing OpenAI o3 and o4-mini—our smartest and most capable models to date.
— OpenAI (@OpenAI) 16 avril 2025
For the first time, our reasoning models can agentically use and combine every tool within ChatGPT, including web search, Python, image analysis, file interpretation, and image generation. pic.twitter.com/rDaqV0x0wEIntroducing OpenAI o3 and o4-mini—our smartest and most capable models to date. For the first time, our reasoning models can agentically use and combine every tool within ChatGPT, including web search, Python, image analysis, file interpretation, and image generation.
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Fujitsu and Partner Launch Takane Japanese LLM
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We’re on the ground at the @WorldSummitAI alongside our incredible partner, @Fujitsu
! Our collaboration with Fujitsu has led to groundbreaking innovations like Takane, the industry-leading Japanese LLM which sets the standard for accuracy and reliability. Together, we’re -
Codex CLI: Lightweight Coding Agent for Command Line
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Codex CLI is a lightweight coding agent that runs directly from your command line. It’s been such a joy partnering with @fouadmatin on this. We can’t wait to see what you’ll build with Codex!
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O4 Model Fails Multiple Use Cases, Limited Output
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Had o4 for a while, strange model but failed a bunch of use cases for me. A bit lazy on output tokens too.
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OpenAI Playground adds o3 and o4-mini models
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BREAKING : o3 and o4-mini models are now available on OpenAI Playground
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OpenAI Launches Codex CLI with Auto Mode
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BREAKING 🚨: OpenAI introduces Codex CLI – a command line coding agent. Codex also supports "auto" mode, where the agent is given full rights to operate on its own.
— 🚨 AI News | TestingCatalog (@testingcatalog) 16 avril 2025
Codex is open-source? 🔥 pic.twitter.com/TcQDG42CdxBREAKING : OpenAI introduces Codex CLI – a command line coding agent. Codex also supports "auto" mode, where the agent is given full rights to operate on its own. Codex is open-source?
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LangGraph Agent LLManager Open Source Release Announced
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We're excited to open source LLManager, a LangGraph agent which automates approval tasks through human-in-the-loop powered memory! Alongside the open source repo, we also released a YouTube video taking a deep dive into its architecture, and use cases (link in reply)