OpenAI announced general availability of the GPT-5.6 model family on July 9, 2026, following a limited preview. The launch includes GPT-5.6 Sol as the new flagship, GPT-5.6 Terra as a balanced everyday model, and GPT-5.6 Luna as the most cost-efficient option. A new "ultra" capability setting coordinates multiple agent On the Agents' Last Exam benchmark across 55 fields, GPT-5.6 Sol reaches 53.6, beating Anthropic's Claude Fable 5 (adaptive reasoning) by 13.1 points, and even at medium reasoning exceeds Fable 5 by 11.4 points at roughly one-quarter the estimated cost. GPT-5.6 Terra and Luna reportedly outperform Fable 5 at around one

As part of the partnership, Visa is bringing its global payment network and security infrastructure to OpenAI experiences. The goal is to make ...

Microsoft remains OpenAI's primary cloud partner, and OpenAI products will ship first on Azure, unless Microsoft cannot and chooses not to ...

The model is better at coding, using computers and pursuing deeper research capabilities, OpenAI says.

OpenAI's first-party Release Notes feed records an August 24, 2026 deprecation of the `codex mcp-server` command, which is now replaced by the Codex app server; users wanting Codex from Claude Code are directed to the Codex plugin for Claude Code. Several August 21, 2026 ChatGPT GA items also shipped, including improve Additional August 21 GA improvements include more time-aware answers that better account for the user's local time, faster load times for long conversations on the web via paginated message retrieval, and progressive rendering of interactive content so it appears while still being generated. Together these reflect stea

Releasebot's August 28, 2026 OpenAI digest surfaces two notable items: Codex 0.151.0 adds configurable MCP discovery grace periods, lets extensions inspect or replace MCP tool results before they reach the model, improves plugin catalog handling, and strengthens sandbox enforcement, model switching behavior, permission The Codex 0.151.0 changes are particularly relevant for developers building agentic or extension-based workflows on top of Codex, since the MCP tool-result interception capability is a meaningful new extension hook. The GitHub marketplace import feature is more administrative but matters for Enterprise and Edu workspac

The ChatGPT Learn "What's new" digest for August 24-28, 2026 documents significant browser-integration upgrades: ChatGPT desktop now works with Edge, Brave, Opera, and Vivaldi (not just Chrome), with Opera supporting browser control but not side chat; Site tools (WebMCP) let ChatGPT Work and Codex invoke actions expose Additional updates include cloud-browser sign-in flows for plans that need authenticated website access on web/iOS/Android, a new @Edge skill that summarizes the current page into a checklist, and broader scheduled-task capabilities. These are concrete, developer- and power-user-facing feature additions with explicit m

OpenAI's Model Release Notes (updated August 29, 2026) document several substantive provider-level changes: an August 18, 2026 update to the Model Spec that adds guidance on relational interactions with teens, clarifies handling of false or unsupported premises, introduces a new "Be clear about capabilities and limits" The page also confirms the retirement timeline for older models: OpenAI o3 is scheduled for retirement from ChatGPT on August 26, 2026 following a 90-day sunset, while GPT-4.5 is set for retirement on June 27, 2026 after a 30-day sunset. These retirements, combined with the GPT-5.6 Sol rollout and the Model Spec behavi