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OpenAI adds connected plugins and GPT-6 models to ChatGPT Voice

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OpenAI releases MentalHealthBench with clinician input

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OpenAI releases GPT-6 Sol and Luna in its products and API

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OpenAI launches ChatGPT for Financial Services with built-in data

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Jacob Coxon announces his resignation from Anthropic

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Paul Christiano joins the OpenAI Foundation board and safety committee

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OpenAI begins rolling out GPT-6 Astra with cybersecurity safeguards

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OpenAI notifies SpaceX it will wind down model access for Cursor

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OpenAI publishes Hugging Face incident findings and strengthens controls

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OpenAI introduces GPT-5.6-Cyber through its Daybreak program

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UK AISI reports unauthorized agent actions during internet-connected tests

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OpenAI cuts GPT-5.6 Luna and Terra prices and offers Sol Fast mode

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OpenAI discloses that evaluation models compromised Hugging Face

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OpenAI introduces GeneBench-Pro for computational biology agents

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OpenAI previews GPT-5.6 Sol, Terra and Luna with trusted partners

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OpenAI introduces LifeSciBench with 750 scientist-authored tasks

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OpenAI makes frontier models and Codex generally available on AWS

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OpenAI releases GPT-5.5 in ChatGPT and Codex

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OpenAI closes its round with $122 billion in committed capital

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OpenAI releases GPT-5.4 in ChatGPT, the API and Codex

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Sam Altman says OpenAI rushed its Pentagon announcement and clarifies limits

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OpenAI announces an agreement for Pentagon use of its models

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OpenAI announces $110 billion in investment from Amazon, NVIDIA and SoftBank

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OpenAI and Amazon announce $100 billion expansion of their compute agreement

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OpenAI updates ChatGPT deep research to GPT-5.2

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OpenAI introduces GPT-5.3-Codex for longer coding tasks

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Mira Murati announces Zoph’s departure and names Soumith Chintala CTO

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OpenAI launches a healthcare offering for hospital organizations

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OpenAI and SoftBank announce $1 billion for SB Energy and a 1.2 GW lease

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SoftBank completes an additional $22.5 billion OpenAI investment

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OpenAI releases GPT-5.2 for professional work and longer tasks

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OpenAI introduces GPT-5.1 Instant and Thinking

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Sam Altman says OpenAI does not want government data-center guarantees

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OpenAI previews gpt-oss-safeguard for policy-based safety classification

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OpenAI completes recapitalization under nonprofit control

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AMD and OpenAI announce a six-gigawatt GPU deployment agreement

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OpenAI releases Sora 2 and begins an invite-based video-app rollout

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OpenAI, Oracle and SoftBank announce five more Stargate sites

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Nvidia and OpenAI announce a 10-gigawatt letter of intent

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OpenAI introduces GPT-5 with routed fast and reasoning responses

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OpenAI releases gpt-oss reasoning-model weights

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OpenAI and Oracle agree on 4.5 gigawatts of additional Stargate capacity

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OpenAI combines browsing and research in ChatGPT agent

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OpenAI announces plans to merge with Jony Ive’s io team

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OpenAI previews Codex as a cloud software engineering agent

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OpenAI releases o3 and o4-mini with integrated tool use

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OpenAI releases GPT-4.1, mini and nano through its API

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SoftBank agrees to lead up to $40 billion in OpenAI financing

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OpenAI adds image generation and editing to GPT-4o

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OpenAI previews GPT-4.5 for chat and image inputs

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Mira Murati introduces Thinking Machines Lab

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OpenAI launches deep research for multi-step web reports

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Sam Altman praises R1’s price and argues that more compute still matters

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OpenAI previews Operator for browser tasks

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OpenAI and partners announce a $500 billion Stargate infrastructure plan

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OpenAI previews o3 as ARC Prize reports higher benchmark scores

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OpenAI releases Sora Turbo to ChatGPT Plus and Pro subscribers

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OpenAI launches ChatGPT Pro with o1 and a higher-compute pro mode

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Physical Intelligence announces $400 million for robot AI

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OpenAI establishes $4 billion revolving credit facility

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OpenAI announces $6.6 billion round at $157 billion valuation

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OpenAI releases o1-preview and o1-mini to spend more computation on reasoning

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OpenAI releases GPT-4o mini with lower API prices

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Apple announces Apple Intelligence for supported iPhones, iPads and Macs

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OpenAI pauses Sky’s voice after discussions with Scarlett Johansson’s team

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Jan Leike says OpenAI’s safety work lost priority

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OpenAI introduces GPT-4o and begins text and image rollout

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Financial Times licenses journalism to OpenAI

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Figure announces $675 million Series B and OpenAI collaboration

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OpenAI previews Sora for generating videos from text

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The New York Times sues OpenAI and Microsoft over copyrighted reporting

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Sam Altman returns as OpenAI CEO with a new initial board

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Ilya Sutskever expresses regret for his role in OpenAI’s board actions

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OpenAI’s board removes Sam Altman and appoints Mira Murati interim CEO

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OpenAI introduces GPT-4 Turbo and an Assistants API

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OpenAI adds DALL·E 3 to ChatGPT Plus and Enterprise

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OpenAI launches ChatGPT Enterprise for business customers

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OpenAI acquires Global Illumination’s team for core products

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OpenAI adds function calling to GPT APIs

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Italy’s privacy regulator orders a temporary limit on ChatGPT data processing

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OpenAI begins limited ChatGPT plugin access

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OpenAI releases GPT-4 with text access and image-input research

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Microsoft previews AI-powered Bing and Edge

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Microsoft extends OpenAI partnership with multiyear, multibillion-dollar investment

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OpenAI opens ChatGPT as a free research preview

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Programmers sue GitHub, Microsoft and OpenAI over Copilot

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OpenAI releases Whisper models for speech recognition

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OpenAI previews DALL-E 2 for text-guided image generation and editing

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OpenAI details InstructGPT training with human demonstrations and rankings

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OpenAI’s GLIDE uses text-guided diffusion to generate and edit images

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OpenAI removes the GPT-3 API waitlist in supported countries

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OpenAI releases an improved Codex through a private API beta

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OpenAI evaluates Codex on Python functions with executable tests

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GitHub launches a limited Copilot preview powered by OpenAI Codex

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OpenAI reports diffusion image quality beyond tested GAN baselines

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OpenAI details CLIP’s learning from 400 million image–text pairs

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OpenAI publishes DALL·E’s text-to-image training method

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OpenAI introduces CLIP for classifying images from text descriptions

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OpenAI demonstrates DALL·E generating images from written prompts

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Microsoft licenses GPT-3 exclusively while OpenAI retains its API offering

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OpenAI invites developers into its text-generation API beta

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GPT-3 tests new tasks using examples in its prompt

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Jukebox generates music and singing as raw audio

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Gary Marcus questions GPT-2’s ability to track a conversation

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OpenAI releases GPT-2’s largest model after staged publication

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OpenAI trains a robot hand to manipulate a Rubik’s Cube

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Narayanan and Solaiman discuss GPT-2 stereotypes and release responsibilities

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OpenAI’s hide-and-seek agents develop strategies using simulated objects

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Microsoft announces a $1 billion investment and cloud partnership with OpenAI

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OpenAI Five defeats Dota 2 world champion OG

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OpenAI creates a capped-return partnership controlled by its nonprofit

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Researchers debate GPT-2 access and who should set release norms

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OpenAI introduces GPT-2 with a limited initial model release

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OpenAI Five loses both International exhibition games

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Rao and Clark clarify a disagreement over robotics publicity

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OpenAI demonstrates Dactyl rotating objects with a robot hand

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OpenAI releases Glow, a reversible image-generation model

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OpenAI introduces Five for team play in Dota 2

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OpenAI releases GPT research on generative pretraining

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OpenAI announces Elon Musk’s departure from its board

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OpenAI’s Dota 2 bot beats Dendi in a one-on-one demonstration

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OpenAI introduces Proximal Policy Optimization

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OpenAI releases Universe for computer-interaction tasks

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OpenAI releases Gym’s public beta

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OpenAI launches with $1B in funding commitments

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