# AI Workflow with ChatGPT Codex and Sites: An OpenAI Expert's Guide Nick Baumann demonstrates new voice features and automation capabilities. - **Source:** [Lenny's Newsletter](https://www.lennysnewsletter.com) - **Published:** 2026-08-03 - **Topic:** [Data & AI](https://brifing.si/c/data-ai) - **Original article:** - **On Brifing:** https://brifing.si/s/d1282432-92e8-405f-a066-a6e928bd92ec ## Developer Experience at OpenAI Nick Baumann works on OpenAI's Developer Experience team, testing and communicating capabilities of ChatGPT Codex and ChatGPT Work. Recent launches include a voice interface with screen-reading orb and Heartbeats automation system on mobile. Baumann shares how these tools transform daily workflows, emphasizing their practical applications for developers and non-technical users alike. ## How Two-Person Voice Chat Works Codex's new voice interface allows users to give commands without opening apps. In a single conversation, one can search flights, book hotels, and generate expense reports. The system interprets natural language requests and executes multi-step processes. Baumann highlights this as particularly valuable for mobile productivity, eliminating app-switching friction. ## Heartbeats Automation System Available in ChatGPT Work mobile, Heartbeats automates repetitive tasks through customizable triggers and actions. Users can delegate routine work like calendar updates based on emails or data entry tasks. Baumann notes this feature remains underutilized despite its potential to save professionals several hours weekly through intelligent task delegation. ## Live Website Deployment ChatGPT Sites enables instant website creation and publishing without coding. The AI generates designs and content based on natural language instructions. Baumann demonstrates how this revolutionizes prototyping and MVP development, allowing creators to test ideas within minutes rather than days. The system supports both simple pages and complex, data-driven sites. ## AI-Powered Video Editing Baumann's personal workflow includes processing 50 raw video clips through a custom plugin. ChatGPT generates transcripts, selects best takes, and assembles vertical videos overnight. This showcases AI's expanding role in creative production, particularly for content creators managing high-volume output. The system learns editing preferences over time for better results. ## Latency vs. Intelligence Balance A key challenge for Codex's voice interface is maintaining response speed while handling complex queries. OpenAI engineers continuously optimize the balance between low latency and high comprehension. Baumann explains this technical trade-off significantly impacts mobile user experience, where quick interactions are expected despite variable network conditions. ## Mobile AI Workflows ChatGPT Work's mobile version offers untapped potential according to Baumann. The team creates educational content to increase awareness of features like travel planning, data analysis, and content generation. Mobile-specific optimizations allow these AI capabilities to complement rather than replace existing apps, creating hybrid productivity solutions. ## AI's Business Transformation Baumann's examples demonstrate AI's impact beyond technical processes to creative and operational work. OpenAI's strategy focuses on making these tools accessible to SMBs and individual entrepreneurs. This democratization represents a significant step in AI adoption, potentially leveling the playing field for resource-constrained businesses against larger competitors. ## Sources covering this story - https://www.lennysnewsletter.com/p/chatgpt-codex-voice-browser-sites — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._