AI Timeline
The most important moments in AI history, from deep learning breakthroughs to the models reshaping every industry. 36 key events from 2012 to today.
2026
Claude Opus 4.6 Released
Anthropic releases Opus 4.6, setting new benchmarks in agentic coding and extended thinking.
SpaceX-xAI Merger
Elon Musk merges SpaceX and xAI, creating an integrated AI and space infrastructure company.
GPT-5.3 Codex Launch
OpenAI launches GPT-5.3 Codex, a specialised coding model with autonomous debugging capabilities.
2025
Gemini 2.5 Pro Released
Google releases Gemini 2.5 Pro with 1M+ context window and state-of-the-art benchmarks.
OpenAI o1 Preview
OpenAI releases o1, introducing chain-of-thought reasoning with extended thinking to consumer AI.
Claude 4 (Sonnet)
Anthropic launches Claude 4 Sonnet with major improvements in coding, analysis, and tool use.
Llama 4 Released
Meta releases Llama 4 family of open-weight models, narrowing the gap with closed-source leaders.
Grok 3 Released
xAI launches Grok 3 with strong benchmark performance and DeepSearch capabilities.
DeepSeek-R1 Released
DeepSeek releases R1, an open-weight reasoning model that challenged frontier pricing and attention economics.
2024
Sora Public Launch
OpenAI publicly launches Sora for video generation, included with ChatGPT Plus subscription.
OpenAI Raises $6.6B
OpenAI closes a $6.6 billion funding round at a $157 billion valuation, the largest AI funding round yet.
Claude 3.5 Sonnet
Anthropic releases Claude 3.5 Sonnet, widely praised as one of the best coding models of the year.
GPT-4o Released
OpenAI releases GPT-4o, a multimodal model with native image and audio capabilities.
Claude 3 Family
Anthropic launches Claude 3 Haiku, Sonnet, and Opus, pushing Claude into the top benchmark tier.
Gemini 1.5 Pro
Google releases Gemini 1.5 Pro with a 1 million token context window.
Sora Announced
OpenAI announces Sora, a text-to-video model capable of generating realistic minute-long videos.
2023
Gemini 1.0 Released
Google launches Gemini, the successor family that replaced Bard-era branding.
OpenAI Leadership Crisis
Sam Altman is fired and reinstated as OpenAI CEO within five days, triggering a governance shock across AI.
Llama 2 Released
Meta releases Llama 2 as open-source, accelerating the open model ecosystem.
Claude 2 Released
Anthropic launches Claude 2 with a 100K context window and improved safety.
AI Safety Letter
Tech leaders sign an open letter calling for a pause on giant AI experiments.
GPT-4 Released
OpenAI releases GPT-4, a much more capable multimodal frontier model.
Bing Chat Launch
Microsoft launches Bing Chat, bringing GPT-era AI directly into search.
2022
ChatGPT Launch
OpenAI launches ChatGPT, which quickly becomes the fastest-growing consumer app in history.
Stable Diffusion Public Release
Stability AI releases Stable Diffusion as open-source and reshapes AI image generation.
Midjourney Beta
Midjourney launches its public beta through Discord and mainstreams AI art creation.
DALL-E 2 Released
OpenAI releases DALL-E 2 with dramatically improved image generation quality.
2021
DALL-E Announced
OpenAI announces DALL-E, pushing text-to-image generation into the mainstream research conversation.
2020
GPT-3 Released
OpenAI releases GPT-3 with 175 billion parameters and the first major wave of emergent ability hype begins.
AlphaFold Solves Protein Folding
DeepMind’s AlphaFold solves the 50-year protein folding challenge.
2019
GPT-2 Released
OpenAI releases GPT-2 and initially withholds the full model over misuse concerns.
2017
Attention Is All You Need
Google researchers publish the Transformer paper that becomes the foundation for modern LLMs.
2016
AlphaGo Defeats Lee Sedol
DeepMind’s AlphaGo beats Lee Sedol 4-1 in one of AI’s defining public breakthroughs.
2015
OpenAI Founded
OpenAI launches as a non-profit AI research lab.
2014
Google Acquires DeepMind
Google acquires DeepMind in one of the most important AI acquisitions of the decade.
2012
AlexNet / ImageNet Breakthrough
AlexNet wins ImageNet by a huge margin and ignites the deep learning era.