Tops GPTs 
Automattic introduced Spacefast, a hosting platform for vibe-coded websites and apps that provides databases, authentication, uploads, email and analytics. Led by Batuhan Icoz, Spacefast supports Git repos and many agents, and was soft-launched in September.
Documentation dated June 2, 2026 outlines ChatGPT Sites, a way to create live internal webpages or small apps from Codex. The guide describes use cases, a five-step build-and-deploy flow, and limits such as no direct live-data connections today.
Travelers expanded its AI Claim Assistant nationwide after an initial eight-state launch, saying 85–90% of customers using the assistant complete claim filing through AI. The system runs on the OpenAI Realtime API and frontier models and links to Travelers’ claims infrastructure.
OpenAI released an update to GPT‑Rosalind on June 3, 2026, combining GPT‑5.5 agentic coding with improved performance in medicinal chemistry and genomics. OpenAI reports GPT‑Rosalind leads on the new LifeSciBench; availability expanded Sept 11, 2026 and pricing starts Oct 5, 2026.
OpenAI said on June 4, 2026 that it introduced GPT‑Rosalind in April 2026 and announced Rosalind Biodefense in May 2026. The company published an action plan to help detect biological threats earlier, speed countermeasure development, and improve pandemic preparedness.
HOPE is a second-order expert-pruning method that accounts for pairwise interactions between experts in Mixture-of-Experts (MoE) layers. The authors report that HOPE improves benchmark ranks—especially at 40–50% pruning—and provide a three-step calibration, solve and prune workflow.
OpenAI announced a new memory synthesis system, built on Dreaming, to address staleness, correctness and scalability in ChatGPT. The update is available to Plus and Pro users in the US and will expand to more countries and Free and Go users in the coming weeks.
Endava has embedded OpenAI tools across its software delivery process, creating DavaFlow, an AI-native methodology used by developers and non-technical teams. CTO Matthew Cloke says agents now run in daily workflows to speed planning, reduce manual work, and enable internal apps.
OpenAI launched the OpenAI Economic Research Exchange to fund external empirical studies on AI’s economic effects. Applications are open through July 5, 2026; selected researchers will be notified by July 31, 2026.
Notion engineers say Codex has changed how they build features, enabling managers to ship code and teams to run parallel tasks. Ryan Nystrom reports a voice-input web feature went from a two-week effort to about three or four hours using Codex.