OpenAI

Agents SDK shipped native sandbox execution and expanded Codex with in-app browser, computer use, and marketplace plugins.

Go, Node, and Python SDKs aligned on message execution tracking and ephemeral token security. Go (v3.32.0), Node (v6.34.0), and Python (v2.32.0) added phase field to conversation messages for pipeline visibility into execution stages. All three implemented short-lived token support to reduce credential exposure in temporary sessions. Go and Node formalized OAuthErrorCode types; Go and Python added detail to InputFileContent. Node (v6.33.0-v6.34.0) extended async iterators and stream support to WebSocket classes. Python added WebSocket reconnection handlers and raw data transmission.

Codex CLI matured marketplace plugin installation and Realtime v2 defaults. Releases 0.115.0-0.121.0 shipped codex marketplace add for installing plugins from GitHub, git URLs, local directories, and JSON feeds. TUI gained Ctrl+R reverse history search and slash-command recall. Memory controls, deletion, and cleanup landed alongside expanded MCP App support—resource reads, tool-call metadata, server-driven elicitations, and file uploads. Realtime v2 defaulted to WebRTC transport with configurable voice selection and native TUI media support; background agent progress streaming added. Windows sandbox enforced proxy-only networking; custom model providers now fetch short-lived bearer tokens dynamically.

Codex app expanded to in-app browser, computer use, and skills integration. Native browser for local and public pages, computer use on macOS/Windows (unavailable in EEA/UK/Switzerland), skills accessible via @ menu, fork-from-earlier-message support, and /model and /reasoning slash commands shipped. Thread search, archive actions, and settings sync between app and VS Code extension landed. April 7 deadline for legacy model removal (gpt-5.2-codex, gpt-5.1-variants, gpt-5); full removal April 14.

GPT-5.4 mini and nano released alongside specialized models. gpt-5.4-mini and gpt-5.4-nano became available as faster, lower-cost alternatives (v6.30.0+, v3.29.0+, v2.29.0+). GPT-Rosalind launched for life sciences and drug discovery. GPT-5.4-Cyber expanded to vetted defenders through Trusted Access. Cloudflare Agent Cloud and enterprise partners deployed models for agentic workflows.