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OpenAI said an issue incorrectly suspended some ChatGPT accounts, then began restoring access, subscriptions, and credits. Users who were locked out should check account status and verify service access before resuming work.

OpenAI expanded Lockdown Mode from organizations to personal and self-serve Business accounts, adding an opt-in setting that limits outbound network requests. The feature is meant to block the final exfiltration step in prompt-injection attacks, though malicious instructions can still affect responses.

OpenAI rolled out a more capable ChatGPT memory system that keeps context across conversations, shows a reviewable memory summary, and doubles memory for US Plus and Pro users. The change matters because persistent context becomes a first-class product feature with explicit controls instead of a static saved-memories note list.

OpenAI rolled a new GPT-5.5 Instant into ChatGPT and the API with less bullet-heavy output, better pacing, and higher multilingual quality. The update also replaces Canvas in GPT-5.5 Instant and Thinking with in-chat writing and code blocks, so users should migrate workflows while legacy models still keep Canvas temporarily.

OpenAI said the API and ChatGPT were seeing elevated latencies before marking the incident resolved later in the day. User reports showed stalled GPT-5.5 sessions and retry loops, turning the issue into a production and coding-agent disruption.

Perplexity published its internal manual for building agent skills and paired it with a research post about how those skills power products like Computer. The guide matters because it gives external builders concrete patterns for decomposing agent behavior into reusable skill folders instead of one-off prompts.

OpenAI is rolling GPT-5.5 Instant into ChatGPT as the default model and exposing it as gpt-5.5-chat-latest, alongside Memory Sources for personalized replies. The model also claims 52.5% fewer high-stakes hallucinations, so watch for behavior changes in production prompts.

Perplexity launched Professional Finance for Computer with licensed Morningstar, PitchBook, Daloopa, and Carbon Arc data plus 35 analyst workflows. The release matters because outputs are now designed to stay traceable to source documents instead of behaving like opaque chat answers.

OpenAI added an opt-in security mode for ChatGPT and Codex that disables password-based recovery, shortens sessions, and requires passkeys or physical keys. Higher-risk accounts get stronger phishing resistance and automatic exclusion from model training when the mode is enabled.

OpenAI introduced a free ChatGPT tier for verified U.S. clinicians and released HealthBench Professional, an open benchmark built from real clinical chat tasks. The launch pairs a clinician-facing workflow product with a public evaluation set and published model results.

OpenAI shipped a Google Sheets add-on that lets ChatGPT build, edit, analyze, and update spreadsheets with natural-language prompts. The integration gives teams a lightweight way to automate sheet workflows without moving data into a separate BI or scripting stack.

Multiple Pro users said GPT-5.4 Pro started producing richer front-end and SVG outputs with much faster runtimes, despite no formal OpenAI announcement. The reports matter because they affect whether long visual and code-generation tasks are practical inside ChatGPT.

Perplexity launched Personal Computer for Mac, giving its desktop agent access to local folders, native apps, and the browser from one orchestration layer. It also supports Mac mini setups controlled from iPhone, pushing the product toward an always-on desktop agent.