OpenAI appears across 70 entries spanning 2023–2026.
2026
- 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
- OpenAI Deploys GPT-5.2 as Reasoning-Native Model Major
- AI Coding Agents Reshape Software Development Major
2025
- 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 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
- OpenAI Releases GPT-5 as Unified Flagship Model Landmark
- 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 and o3-mini Reasoning Models 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