3OpenAI Release Notes·
OpenAI simplifies ChatGPT model picker for Enterprise, Edu, and Business tiers
OpenAI is rolling out a redesigned model picker for ChatGPT Enterprise, Edu, and Business across web, iOS, and Android that replaces reasoning-tier labels with plain-language speed/effort options: Instant, Medium, High, Extra High, Pro Standard, and Pro Extended. The rename maps Medium→Thinking Standard, High→Thinking Extended, Extra High→Thinking Heavy, while Thinking Light is discontinued. Pro Standard and Pro Extended continue to use GPT-5.5 Pro. Access controls remain tied to workspace-level Reasoning Model Access and Pro Model Access settings.
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OpenAI rolls out GPT-5.5 support and new controls for ChatGPT workspace agents
OpenAI is expanding ChatGPT workspace agents for Enterprise and Edu customers with several new capabilities, including support for GPT-5.5 with configurable reasoning effort, role-based publishing permissions, guided setup flows, speech output, and smarter Slack thread handling. The update gives enterprise admins finer-grained control over agent deployment and expands the modalities agents can produce. These changes position ChatGPT agents more directly as a managed enterprise automation layer.
OpenAI rolls out GPT-5.4 mini in ChatGPT as reasoning fallback
OpenAI is deploying GPT-5.4 mini in ChatGPT, making it available to Free and Go users via the 'Thinking' feature and as a rate-limit fallback for GPT-5.4 Thinking for paid users. The model will not appear as a selectable option in the model picker, positioning it as a background capacity-management tool rather than a user-facing choice. Enterprise customers retain the option to set Auto routing to default to GPT-5.4 mini.
OpenAI adds GPT-5.5, reasoning controls, and speech output to ChatGPT workspace agents
OpenAI is rolling out several capability upgrades to workspace agents in ChatGPT Business, including support for GPT-5.5 with configurable reasoning effort, guided agent setup flows, speech/audio output, and smarter Slack thread reply logic. Creators can now tune reasoning intensity per agent and opt into or out of thread-following behavior in Slack. The update expands the enterprise agentic surface of ChatGPT with both model-tier access and new modality support.
OpenAI launches ChatGPT Work, a product tier targeting enterprise and professional users
OpenAI announced ChatGPT Work, a product offering positioned for professional and enterprise use cases described as supporting 'most ambitious work.' The announcement originates from OpenAI's official index, suggesting a formal product launch rather than a minor update. With 296 HN points and 141 comments, the community response indicates meaningful practitioner interest.
New in ChatGPT for Business: April 2025 Updates
OpenAI published an April 2025 update for ChatGPT's business tier, highlighting four capability areas: the o3 reasoning model, image generation, enhanced memory, and internal knowledge retrieval. The announcement is framed around hands-on demos for enterprise users. This represents an incremental rollout of recently released capabilities into the business product line rather than a new model launch.
Introducing ChatGPT Pro
OpenAI announced ChatGPT Pro, a new subscription tier aimed at broadening access to frontier AI capabilities. The announcement comes from OpenAI's official blog and signals a product and pricing strategy move to expand usage of their most advanced models. Details on specific model access, pricing, and feature differentiation were not included in the provided body text.
OpenAI rolls out GPT-5.5 Instant as ChatGPT's new default model
OpenAI is replacing GPT-5.3 Instant with GPT-5.5 Instant as the default model for all ChatGPT users, citing improvements in accuracy, clarity, image understanding, STEM, and web search decisions. The update also reduces overformatting and unnecessary follow-up questions, and adds better context retention from past chats, files, and Gmail for Plus and Pro users. GPT-5.3 Instant remains available for paid users for three months before retirement.
OpenAI launches ChatGPT Work, an agentic product for long-horizon tasks with scheduling and multi-app integration
OpenAI has released ChatGPT Work, an agent-oriented product tier within ChatGPT designed for extended, multi-step tasks including research, document creation, and cross-app workflows. It supports human-in-the-loop oversight, scheduled and triggered task execution, and integrates with connected apps and files. The rollout targets paid plans (Pro, Enterprise, Edu first; Plus and Business following), with a two-week admin-controlled preview for enterprise workspaces. Alongside this, OpenAI is replacing its App Directory with a Plugin Directory that bundles skills, apps, and templates for specific workflows.