DevDay 2025: Booking.com inside ChatGPT, AI agents and trillion-dollar partnerships – ForkLog

Welcome to the forefront of conversational AI as we explore the fascinating world of AI chatbots in our dedicated blog series. Discover the latest advancements, applications, and strategies that propel the evolution of chatbot technology. From enhancing customer interactions to streamlining business processes, these articles delve into the innovative ways artificial intelligence is shaping the landscape of automated conversational agents. Whether you’re a business owner, developer, or simply intrigued by the future of interactive technology, join us on this journey to unravel the transformative power and endless possibilities of AI chatbots.
OpenAI unveiled a new feature that lets people build apps directly inside ChatGPT. Users will be able to interact with services such as Booking․com, Expedia, Spotify, Figma, Coursera, Zillow, Canva and others from within the chat.
You can now chat with apps in ChatGPT. pic.twitter.com/T9Owi3POim
— OpenAI (@OpenAI) October 6, 2025

At the DevDay 2025 developer conference, the startup introduced the Apps SDK, a toolkit for creating such applications.
“We want ChatGPT to become an excellent tool for personal progress. People will be able to be more productive, more inventive, learn faster and better cope with any tasks in life. The service will open the way to a new generation of applications—interactive, adaptive and personalized—that you can simply talk to,” said OpenAI CEO Sam Altman.
Earlier the company launched the GPT Store, where developers could create interactive apps. That was a separate marketplace; now programs are embedded directly in ChatGPT. Users can invoke third-party tools during a conversation with the bot.
For example, you can say: “Figma, turn this sketch into a working diagram” or “Coursera, tell me something about machine learning”.
During a demo of the new capabilities, users used Zillow to find nearby apartments within a specified price range. ChatGPT showed an interactive map, and people refined details on each property right in the chat.
The bot can automatically suggest useful apps. Ask it to make a playlist for a weekend party, and the AI will open Spotify in the dialogue.
Further integrations are planned, including DoorDash, Instacart, Uber and AllTrails.
The system is built on the Model Context Protocol, which lets developers connect their own data sources to the AI platform. Apps can not only take actions but also render interactive elements directly in the bot’s responses. Some can even display video—pinned at the top of the page and changing with the user’s requests.
With an active ChatGPT subscription, you can sign into a service from within the app to access additional features.
At DevDay 2025 Altman presented AgentKit, a set of tools for building and deploying AI agents.
“AgentKit is a complete set of building blocks on the OpenAI platform, capable of taking agents from prototype to production. It is everything you need to create, launch and optimize the workflows of digital assistants with minimal friction,” said the entrepreneur.
The service includes several components:
To show AgentKit’s capabilities and simplicity, OpenAI engineer Christina Huang built a complete AI workflow and two agents live in just a few minutes.
With Agent Builder, you can drag and drop nodes, connect tools, and publish your agentic workflows with ChatKit and the Agents SDK.https://t.co/ayLhKaSPUF
Here’s @christinaahuang to walk you through it: pic.twitter.com/iFczB31hAl
— OpenAI Developers (@OpenAIDevs) October 6, 2025

Altman told the conference that 800m people now use the chatbot every week. In August the figure was around 700m; at the end of March it was 500m.
“Today 4m developers are creating solutions using OpenAI. More than 800m people use ChatGPT every week, and we process over 6bn tokens per minute via the API. Thanks to you, artificial intelligence has turned from a toy into a full-fledged tool for work and creativity,” said the entrepreneur.
The company is releasing new products at a brisk pace. In early October it unveiled Sora 2, an updated audio and video generator. It simultaneously released the Sora social app, where users can create clips featuring themselves and friends and share them in a TikTok-style algorithmic feed.
OpenAI continues to expand its partner network — in 2025 the value of signed contracts reached roughly $1 trillion.
The company struck an agreement with AMD for 6 GW to power “next-generation artificial intelligence infrastructure”.
The first launch of 1 gigawatt of AMD Instinct MI450 GPUs is planned for the second half of 2026.
As part of the deal, AMD issued OpenAI a warrant to purchase up to 160m of its common shares. Rights to the securities will vest gradually as certain milestones are met.
There were earlier agreements with Nvidia, Oracle and CoreWeave. Across all partnerships, OpenAI will gain access to more than 20 GW of compute over ten years—roughly the output of 20 nuclear reactors.
The deals far exceed the company’s revenues and raise questions about how it will finance them.
“OpenAI is not currently in a position to take on such commitments,” said DA Davidson analyst Gil Luria.
He said the startup’s loss in 2025 could reach $10bn. Many firms are making outsized bets on OpenAI, the expert added.
At DevDay 2025 OpenAI announced updates to its API. They include:
GPT-5 Pro may appeal to developers building applications for finance, law and medicine, where “high accuracy and depth of reasoning” are required, Altman noted.
He said voice technologies will play a key role in the future. In that vein, the gpt-realtime mini model was introduced, supporting low latency for streaming speech and audio.
The new model is 70% cheaper than the previous advanced voice version while delivering comparable voice quality and expressiveness.
In October, OpenAI became the world’s most valuable private company with a $500bn valuation.
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