OpenAI hosted its third annual DevDay conference on October 6, 2025 in San Francisco, marking the company’s largest developer event yet with over 1,500 attendees. The event showcased a comprehensive suite of new tools, models, and strategic partnerships aimed at transforming ChatGPT into a full-fledged platform ecosystem while accelerating enterprise adoption.
Major Product Launches and Features
Apps in ChatGPT and Apps SDK
OpenAI unveiled its most significant platform transformation by enabling apps to run directly inside ChatGPT. Users can now access third-party applications seamlessly within the chat interface through natural language commands or automatic suggestions. The initial launch partners include Booking.com, Canva, Coursera, Figma, Expedia, Spotify, and Zillow, with future integrations planned for DoorDash, Uber, Instacart, OpenTable, and AllTrails.
The new Apps SDK (Software Development Kit) enables developers to build interactive applications that render directly within ChatGPT conversations. Built on the Model Context Protocol (MCP), the SDK allows developers to connect external data sources, trigger app actions, and create fully interactive user interfaces within chat responses.
AgentKit – Production-Grade AI Agent Builder
OpenAI introduced AgentKit, a comprehensive toolkit designed to streamline AI agent development, deployment, and optimization. The platform includes:
- Agent Builder: A visual canvas for designing agent logic and testing workflows
- Responses API: Core infrastructure for agent functionality
- Connectors Registry: Trusted access to data sources and external tools
- Control Panel: Administrative tools for enterprise management
During a live demonstration, OpenAI’s Christina Huang built a functional agent that transformed the DevDay schedule into an actionable format in under eight minutes.
Model and API Updates
GPT-5 Pro
GPT-5 Pro is now available in the API, offering enhanced accuracy and reasoning capabilities specifically designed for enterprise applications in finance, legal, and healthcare sectors. The model addresses use cases requiring high precision and complex reasoning tasks.
Sora 2 API Integration
Sora 2, OpenAI’s advanced video generation model, is now accessible through the API. The updated model features synchronized sound effects, realistic soundscapes, and ambient audio that correspond with visual content. This enables developers to integrate high-quality video generation capabilities directly into their applications.
gpt-realtime-mini
OpenAI launched gpt-realtime-mini, a smaller and more cost-effective voice model offering 70% lower costs compared to the large voice model while maintaining the same voice quality and expressiveness. The model supports low-latency streaming interactions for real-time audio and speech applications.
gpt-image-1-mini
A new smaller image generation model was introduced, providing 80% cost reduction compared to the large image model while maintaining quality standards.
Codex General Availability
Codex, OpenAI’s AI coding assistant, transitioned from research preview to general availability. New features include:
- Slack integration for team collaboration
- Codex SDK for embedding coding capabilities into custom workflows
- GitHub Actions integration for CI/CD pipelines
- Enterprise controls with environment monitoring and analytics dashboards
OpenAI reported that Codex usage has grown 10x since early August 2025, with nearly all OpenAI engineers now using the tool, resulting in 70% more pull requests merged weekly.
Strategic Partnerships and Infrastructure
AMD Partnership – 6 Gigawatt GPU Deal
OpenAI announced a massive strategic partnership with AMD involving the deployment of 6 gigawatts of AMD Instinct GPUs over multiple years. Key details include:
- Initial 1 gigawatt deployment of AMD Instinct MI450 GPUs starting in the second half of 2026
- 10% equity stake opportunity for OpenAI through warrants to purchase up to 160 million AMD shares
- Expected tens of billions in annual revenue for AMD over the five-year agreement
AMD’s stock surged over 34% following the announcement, representing the largest single-day gain in over nine years.
Enterprise Partnership Strategy
OpenAI declared a “huge focus on enterprise growth” with strategic collaborations across diverse industries. The partnerships span multiple sectors including travel (Booking.com, Expedia), music streaming (Spotify), real estate (Zillow), design tools (Figma, Canva), and education (Coursera).
Spotify confirmed it will not share user data with OpenAI for training models, emphasizing privacy protection in partnership agreements.
Hardware Development Updates
Jony Ive Collaboration – AI Device Family
CEO Sam Altman and former Apple designer Jony Ive provided updates on their collaborative hardware development efforts. Key insights include:
- Development of “15 to 20 truly exciting product concepts” as they refine their hardware focus
- Creation of a “family of devices” rather than a single product
- Screenless, palm-sized device designed for continuous environmental monitoring through audio and visual inputs
- Target launch window of late 2026 or early 2027
The devices aim to create technology that promotes “joy, fulfillment, tranquility, and reduced anxiety” rather than just increased productivity. However, development faces technical challenges around device personality, conversation management, and computing infrastructure requirements.
Market Impact and Industry Response
The DevDay announcements triggered immediate market reactions, with partner companies seeing stock price increases. Figma shares jumped 7.4%, while DoorDash and Uber gained 3.9% and 3.6% respectively following integration announcements. The event reinforced OpenAI’s positioning as a central platform in the AI ecosystem, with industry analysts noting the company’s evolution from a standalone application to a comprehensive operating system.
OpenAI’s DevDay 2025 represents a pivotal moment in the company’s transition from consumer-focused AI tools to a comprehensive enterprise platform, positioning ChatGPT as the foundation for a new generation of AI-powered applications and workflows.
