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Gemini 3

Google DeepMind's third generation launches across Search, the Gemini app and its developer tools on one day, and takes the lead on most benchmarks; the search company is now the frontrunner.

category
model
significance
3 of 5
people
Demis Hassabis, Sundar Pichai, Koray Kavukcuoglu
organisations
Google DeepMind

what had to happen · 62 events back to 1943

Every event this one built on, transitively, in order. The organism has the same path lit. Direct influences are marked.

00 · One neuron · 1

  1. 1943A logical calculus of nervous activity

I · Foundations · 11

  1. 1948A mathematical theory of communication
  2. 1949Cells that fire together wire together
  3. 1950Programming a computer for playing chess
  4. 1950Computing machinery and intelligence
  5. 1958The perceptron learns
  6. 1959Samuel's checkers program coins 'machine learning'
  7. 1960ADALINE and the least-mean-squares rule
  8. 1965Moore's law
  9. 1966ELIZA
  10. 1969Perceptrons
  11. 1970Reverse-mode automatic differentiation

W1 · The first winter · 2

  1. 1974Werbos applies backpropagation to neural networks
  2. 1980The Neocognitron

II · Connection · 3

  1. 1982The Hopfield network
  2. 1985The Boltzmann machine
  3. 1986Backpropagation

W2 · The second winter · 6

  1. 1988Temporal-difference learning
  2. 1989Q-learning
  3. 1989LeNet reads handwritten postcodes
  4. 1990Finding structure in time
  5. 1991The vanishing gradient problem
  6. 1992TD-Gammon reaches world-class backgammon

III · Statistics and data · 9

  1. 1997Long short-term memory
  2. 1998MNIST and LeNet-5
  3. 1999The first GPU
  4. 2003A neural probabilistic language model
  5. 2006Deep belief networks and the word 'deep'
  6. 2007CUDA
  7. 2009Deep learning moves to GPUs
  8. 2009ImageNet
  9. 2010Rectified linear units

IV · Deep learning · 10

  1. 2012Google Brain's network discovers cats
  2. 2012Dropout
  3. 2012AlexNet wins ImageNet
  4. 2013Deep Q-networks play Atari
  5. 2014Attention
  6. 2014Sequence to sequence learning
  7. 2015Batch normalisation
  8. 2015Residual networks
  9. 2016AlphaGo beats Lee Sedol
  10. 2016Google reveals the TPU

V · Transformers · 8

  1. 2017Attention is all you need
  2. 2017Deep reinforcement learning from human preferences
  3. 2017AlphaGo Zero learns from nothing
  4. 2018GPT: generative pre-training
  5. 2019GPT-2 and the model too dangerous to release
  6. 2020Scaling laws for neural language models
  7. 2020GPT-3
  8. 2020Learning to summarise from human feedback

VI · Everyone · 10

  1. 2022InstructGPT
  2. 2022Chain-of-thought prompting
  3. 2022Chinchilla: the models were undertrained
  4. 2022PaLM
  5. 2022ChatGPT
  6. 2023LLaMA leaks and open weights take off
  7. 2023GPT-4
  8. 2023Geminidirect
  9. 2024o1 and reasoning models
  10. 2024DeepSeek-V3 trained for $5.6 million

VII · Agents · 2

  1. 2025DeepSeek-R1
  2. 2025Gold at the Mathematical Olympiaddirect

Gemini 3 was announced on 18 November 2025 and, unlike its predecessors, was in production the same day: in Search's AI mode, in the Gemini app, in AI Studio and Vertex for developers, in the Gemini command-line tool and in a new agent-first coding editor called Antigravity. The Pro model topped the LMArena leaderboard and most of the reasoning, coding and multimodal benchmarks on release, and a Deep Think mode, descended from the olympiad model, went further on the hardest of them. A Flash version followed in December.

Two years after Gemini's awkward first launch, Google had the advantages it always had: its own chips, the largest distribution on Earth, and a research organisation that had invented most of the architecture. The laboratory that had been embarrassed by ChatGPT in 2022 was, by the end of 2025, the one the others were measured against, with Anthropic close on code and OpenAI on consumer reach.

Gemini 3 is on this timeline as the marker of a settled three-way frontier and of a year, 2025, in which the models were released into products rather than announced as research.

what it led to · 0 events downstream

A leaf, for now. Nothing in the corpus has built on it yet.

sources · 2

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