DEVDAY 2025: APPS SDK, SORA 2, GPT-5 PRO, AGENTKIT, NEW IMAGE GENERATION AND SPEECH-TO-SPEECH MINI MODELS, AND MORE

Summary from the TLDR newsletter

This post lists all of the announcements that OpenAI made at DevDay 2025. The updates include Apps in ChatGPT, the Apps SDK, AgentKit, Sora 2 and Sora 2 Pro in the API, GPT-5 Pro in the API, Codex GA, and more. GPT-5 API requests are now 40% faster on the priority processing tier compared to the standard tier.