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CoT > Cover Image
New tools and features in the Responses API

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image generation API > cover image
Introducing our latest image generation model in the API

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API GPT-4.1 Art 16.9
Introducing GPT-4.1 in the API

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New tools for building agents > cover image
New tools for building agents

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[2.0] Card > Media > o1 Developer Tools
OpenAI o1 and new tools for developers

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Introducing the Realtime API > Card image
Introducing the Realtime API

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Introducing vision to the fine-tuning API > Cover image
Introducing vision to the fine-tuning API

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Prompt Caching > Media
Prompt Caching in the API

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Model Distillation in the API > Media
Model Distillation in the API

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image generation API > cover image
Introducing our latest image generation model in the API

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GPT-4.5
Introducing GPT-4.5

Release

o3-mini > cover image
OpenAI o3-mini

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Research

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CoT Monitoring > Cover image > Media
Detecting misbehavior in frontier reasoning models

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Trading inference-time compute for adversarial robustness > card image
Trading inference-time compute for adversarial robustness

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Advancing Red Teaming > Cover Image
Advancing red teaming with people and AI

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Safety

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model spec v2 > cover image
Sharing the latest Model Spec

Safety

[2.0] Card > Media > Deliberative Alignment
Deliberative alignment: reasoning enables safer language models

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An update on our safety & security practices
An update on our safety & security practices

Safety