OpenAI Dev Day: Apps SDK, AgentKit, Codex GA, GPT‑5 Pro and Sora 2 APIs
OpenAI showcased major product launches at their DevDay including the Apps SDK, AgentKit, and Codex now generally available with SDK and enterprise features. They introduced new models such as gpt-5-pro, gpt-realtime-mini-2025-10-06, gpt-audio-mini-2025-10-06, gpt-image-1-mini, and sora-2 with a pro variant. The Apps SDK enables embedding interactive apps inside ChatGPT with partners like Canva, Figma, Zillow, and Coursera. AgentKit offers a full stack for building and deploying production agents with tools like ChatKit and Guardrails. Codex supports speech and controller-driven coding, credited with high internal shipping velocity. Pricing for GPT-5 Pro was revealed at $15 input and $120 output per million tokens. *"OpenAI turned ChatGPT into an application platform"* and *"AgentKit built a working agent in under 8 minutes"* were highlights.