ChatGPT内嵌App！OpenAI开发者日全览，Agent工具链+应用生态+模型API多箭齐发

Core Insights - OpenAI's Developer Day 2025 showcased a significant increase in product releases compared to previous years, indicating a rapid evolution in AI capabilities and offerings [1] Group 1: New Features and Tools - ChatGPT now integrates various applications, allowing users to interact with apps like Coursera and Spotify directly within the chat interface, enhancing user experience and accessibility [2][13] - The introduction of AgentKit provides developers with a comprehensive toolkit for building, deploying, and optimizing agents, featuring modules like Agent Builder and Connector Registry [4][23] - Codex, OpenAI's AI programming tool, has been upgraded with new functionalities, including Slack integration and Codex SDK, enabling seamless task delegation and integration into workflows [8][29] Group 2: Developer Support and SDKs - OpenAI has launched Apps SDK, allowing developers to create and test applications that can connect with ChatGPT, with plans for a submission and review process later this year [18][20] - The Agent Builder module within AgentKit allows developers to visually construct agents without starting from scratch, streamlining the development process [8][25] - The Connector Registry facilitates centralized management of data and tool connections across OpenAI products, enhancing interoperability [24][27] Group 3: Pricing and Model Comparisons - The API for GPT-5 Pro has been made available, with pricing set at $15 per million tokens for input and $120 for output, reflecting a premium positioning in the market [34][35] - A comparison of pricing shows GPT-5 Pro at $15, while other models like o3-pro are priced higher at $20, indicating competitive pricing strategies [38] - The introduction of a smaller, more cost-effective voice model, GPT-Realtime-Mini, offers similar performance at a 70% lower price, catering to budget-conscious developers [40]