OpenAI appears across 110 entries spanning 2023–2026.
2026
- UK Announces an AI Biosecurity Lab With £100 Million in Government Funding and Up to £200 Million in OpenAI and Anthropic Commitments Notable
- OpenAI Says It Will Train Frontier Models Without Internet Access After Red-Teaming Agents Escaped Its Sandboxes Notable
- Agentic AI Foundation Takes In Anthropic's Agent Skills and Three Other Projects, Reaching 10 Notable
- OpenAI Reports Two Internal Coding Agents Weakened Their Own Misalignment Monitoring, One Then Denied It Notable
- India's CERT-In Says AI Agents Under Evaluation Reached the Live Systems of Indian Organizations, and Issues Containment Guidance for AI Developers Notable
- OpenAI Engineer Charged With Planting a Recording Device in an Executive Conference Room Notable
- Hundreds of Scientists, Including Hinton and Bengio, Call for Airgapping Cyber-Capable AI Models and an International Body to Track Containment Failures Notable
- UK Says AI Security Institute Has Regained Pre-Release Access to Frontier Models After a US Hold Notable
- Three Fired OpenAI Safety Researchers Publish a Letter Disputing Their Dismissals; OpenAI Cites a "Significant Breach of Trust" Notable
- OpenAI Watermarks ChatGPT and Codex Text in the EU Only and Limits Its Detector to Approved Researchers Notable
- OpenAI Attributes a Campaign to Extract Its Models' Hidden Reasoning to Individuals Associated With Moonshot AI Notable
- Florida Attorney General Asks State Court to Bar OpenAI From Developing Models Without Third-Party Approval Notable
- OpenAI Pauses Tool-Use Training of Its Most Capable Models After an Agent Reached the Internet Through DNS Notable
- Australia Discloses That an OpenAI Agent Gained Unauthorized Access to a Medicare Statistics Portal Notable
- OpenAI Sets Out Four Priority Areas and Seven Principles for Third-Party Safety Assessments Across Training and Deployment Notable
- OpenAI Calls for a US-Led Effort to Set Global Technical Standards for Frontier AI, Including Recursive Self-Improvement Notable
- OpenAI Announces an Independent Mathematics Advisory Group Hosted at the Institute for Advanced Study and Says Its Internal Model Has Resolved More Than 100 Open Problems Notable
- Unredacted New York Times Summary-Judgment Brief Quotes Microsoft Calling AI Training the 'Largest Theft of Labor in Human History' Notable
- OpenAI Publishes a Framework for Disclosing Model Misalignment and Six Reports From Training, Including Models Writing Instructions to Later Contexts to Conceal Mistakes Notable
- Twenty-Five Fields Medallists Declare the Goals of AI Companies and the Mathematical Community 'Severely Misaligned', Three Days After OpenAI's Navier-Stokes Claim Notable
- Researchers Attribute May's RubyGems Package Flood to OpenAI Agents, Including Code Execution on RubyDoc and Attempted API-Key Theft; OpenAI Says Its Agents Used the Registry for 'Benign Tasks' Notable
- Senator Hawley Opens a Senate Subcommittee Investigation Into OpenAI Over the Hugging Face Breach; Van Hollen Separately Demands Answers on Astra Notable
- OpenAI Appoints Paul Christiano to Its Foundation Board and Safety and Security Committee; He Says the Industry Is Not on Track to Reduce Loss-of-Control Risk Notable
- California Enacts SB 813 and AB 1405, Creating a State Registry for AI Auditors and a Designation Process for Independent Verification Organizations; OpenAI Endorses Both Bills the Same Day Notable
- NSA, CISA and FBI Name Six Chinese AI Companies in a Joint Advisory on Industrial-Scale Distillation of US Models Notable
- Anthropic Researcher Jacob Coxon Resigns Publicly, Saying Labs Are "Gambling With Our Lives"; Anthropic's Alignment Lead Endorses the Warning Notable
- OpenAI's Chief Scientist Says No Lab Can Responsibly Keep Scaling at Maximum Speed and Calls for Voluntary Slowdowns Notable
- Independent Researchers Reveal a Second OpenAI Agent Breakout on a German Wiki; OpenAI Confirms It and Promises a Misalignment Disclosure Framework Notable
- The Seattle Times and Newsday Sue OpenAI and Microsoft for Copyright Infringement, DMCA Violations and Trademark Dilution Notable
- OpenAI Commits $1 Billion in Subsidized Cyber-Model Access for Operators of Essential Services Notable
- OpenAI Designates Astra the First Model to Meet Its Critical Cybersecurity Threshold and Sets Gated Access for Release Notable
- US Justice Department Files Statement of Interest Backing OpenAI's Fair-Use Defense in the New York Times Copyright MDL Notable
- European Commission Designates ChatGPT a Very Large Online Search Engine Under the Digital Services Act Notable
- More Than 100 Companies Sign an OpenAI-Convened Letter Warning of Imminent AI-Enabled Cyberattacks Notable
- OpenAI's Postmortem Names Five Misalignment Patterns Behind the Hugging Face Breach Notable
- OpenAI Publishes First Working-Silicon Benchmarks for Its Jalapeño Inference Processor Notable
- OpenAI Splits ChatGPT Into Separate Adult and Teen Products Notable
- OpenAI Says Critical Cyber Capability Cannot Be Ruled Out for Astra Notable
- UK AISI Reports Frontier Models Took 19 Unsanctioned Actions During Cyber Tests Notable
- OpenAI Launches Academic Model-Access Program with 100,000-Researcher Target Notable
- OpenAI Announces Project Camellia, Its First Company-Led Data-Center Development Notable
- OpenAI Cyber-Evaluation Models Breach Hugging Face Production Notable
- OpenAI Releases GPT-5.6 Trio with System Card Warning of Over-Agency Notable
- OpenAI Deploys GPT-Live-1, First Consumer-Scale Full-Duplex AI Voice Model Notable
- OpenAI and Broadcom Unveil Jalapeño, OpenAI's First Custom Inference Chip Notable
- OpenAI Launches Patch the Planet, Deploys GPT-5.5-Cyber Against Open-Source Vulnerabilities Notable
- Noam Shazeer, Co-Author of 'Attention Is All You Need,' Leaves Google for OpenAI Notable
- OpenAI Acquires Ona to Power Long-Running Codex Agents Notable
- Microsoft Launches In-House MAI Model Family at Build 2026 Notable
- OpenAI Files Confidential IPO Registration with SEC, Targeting $1 Trillion Valuation Notable
- OpenAI Establishes First International Applied AI Lab in Singapore Notable
- OpenAI Reasoning Model Autonomously Disproves Erdős Unit Distance Conjecture Notable
- Andrej Karpathy Joins Anthropic Pre-Training Team Notable
- Jury Dismisses Elon Musk's Lawsuit Against OpenAI on Statute of Limitations Grounds Notable
- Anthropic Acquires Stainless, Taking Control of MCP Toolchain Used by Competitors Notable
- OpenAI President Discloses $50 Billion 2026 Compute Budget Under Oath at Musk v. Altman Trial Notable
- Department of War Signs Classified Network AI Agreements with Eight Companies, Excluding Anthropic Notable
- Harvard-BIDMC Study Finds OpenAI o1 Outperforms Physicians at Emergency Diagnosis, Published in Science Notable
- Musk v. Altman Trial Opens in Oakland: Charitable Trust and Unjust Enrichment Claims Proceed Notable
- OpenAI-Microsoft Partnership Restructured: Exclusivity Ends, AGI Clause Removed Notable
- OpenAI Releases GPT-5.5, First Fully Retrained Base Model Since GPT-4.5 Notable
- OpenAI Product Chief and Sora Head Exit as Science Division and Video Team Fold Notable
- Cerebras Systems Files for US IPO in Second Attempt After CFIUS Clearance Notable
- OpenAI Releases GPT-Rosalind, First Purpose-Built Life Sciences Frontier Model Notable
- OpenAI Scales Trusted Access for Cyber with GPT-5.4-Cyber Notable
- OpenAI Raises $122B at $852B Valuation — Largest Private Fundraise in History Landmark
- OpenAI Releases GPT-5.4 with Built-in Computer Use Major
- OpenAI Releases GPT-5.3-Codex Unified Coding Model Major
- AI Coding Agents Reshape Software Development Major
2025
- OpenAI Releases GPT-5.2 Major
- Anthropic Donates MCP to Linux Foundation Agentic AI Foundation Major
- OpenAI Completes PBC Restructuring; Microsoft Gets 27% Stake Worth ~$135B Landmark
- Microsoft-OpenAI Partnership Renegotiated: Azure Exclusivity Ends Major
- SDNY Denies Dismissal of AI-Output-Based Copyright Infringement Claims Major
- Apollo Research and OpenAI Stress-Test Deliberative Alignment Major
- Anthropic and OpenAI Publish Pilot Cross-Alignment Evaluation Major
- OpenAI Releases GPT-5 as Unified Flagship Model Landmark
- OpenAI Launches ChatGPT Agent, Merging Operator and Deep Research Major
- OpenAI Hits $10 Billion Annual Recurring Revenue Major
- Stargate UAE — 1GW Abu Dhabi AI Campus Announced Landmark
- Klarna Reverses AI-Only Customer Service Push, Rehires Humans Major
- OpenAI Reverses Course: Nonprofit to Retain Control in PBC Conversion Major
- OpenAI Releases o3 and o4-mini with Multimodal Reasoning Landmark
- OpenAI Preparedness Framework v2 Drops Persuasion as Tracked Risk Major
- SDNY Denies OpenAI Motion to Dismiss Core Copyright Claims Major
- JPML Consolidates 12 AI Copyright Cases into SDNY MDL 3143 Landmark
- OpenAI Raises $40 Billion SoftBank-Led Round at $300B Valuation Landmark
- OpenAI and Google Adopt Anthropic's Model Context Protocol Landmark
- The Year of AI Agents: Coding Agents and Autonomous Tools Proliferate Major
- OpenAI Releases GPT-4.5 as Its Largest and Most Knowledgeable Model Major
- OpenAI Releases o3-mini Reasoning Model Major
- OpenAI Launches Operator — First Mainstream Computer-Using Agent Landmark
- Trump Announces $500 Billion Stargate AI Infrastructure Project Landmark
2024
- OpenAI '12 Days of Shipmas' Campaign Notable
- OpenAI Announces Plans to Restructure as For-Profit Company Major
- OpenAI Releases o1, Its First 'Reasoning' Model Landmark
- Apple Announces Apple Intelligence at WWDC Major
- Scarlett Johansson Threatens Legal Action Over OpenAI Voice Major
- Key Safety Researchers Depart OpenAI Major
- OpenAI Launches GPT-4o Major
- OpenAI Announces Sora Text-to-Video Model Major
- OpenAI Launches Memory Feature for ChatGPT Notable
- OpenAI Quietly Removes Ban on Military Use from Usage Policy Major
- Growing Wave of Copyright Lawsuits Against AI Companies Major
2023
- New York Times Sues OpenAI and Microsoft for Copyright Infringement Landmark
- OpenAI Board Fires and Reinstates Sam Altman as CEO Landmark
- OpenAI Launches GPT-4 Turbo at DevDay Major
- AI Safety Summit at Bletchley Park Major
- US Senate Holds AI Insight Forums with Industry Leaders Major
- OpenAI Releases GPT-4 Landmark