NLP Lineage

12 February 2026 · Reasoning

Gemini 3 Deep Think

Gemini 3 Deep Think

Google DeepMind

Date
12 February 2026
What the date marks
Model release
Kind
Model
Organisation
Google DeepMind
Access
API / Ultra tier
Threads
In the guided tour
Chapter 12. Thinking longer
Learning phases
2. How LLMs are trained

Too recent for its influence to be judged: no later milestone in the data descends from it yet. How levels are decided

Figures quoted here are reported by the organisation that built it, not independently verified.

Read the primary source (blog.google)

Full summary in progress. Until then, this page shows the milestone's record from the research data.

What it changed

Before it

Deep Think was the variant behind the 2025 olympiad result.

The problem

That capability sat in a research configuration rather than a product.

What it introduced

A substantial upgrade to the deep reasoning mode, offered to subscribers.

Why it matters

It brought the heaviest reasoning configuration into general availability.

What modern models inherit

Maximum-effort reasoning as a purchasable tier.

What came next

Gemini 3.1 the following week.

Before and after

The milestones it descends from, and the milestones that descend from it. Work developed alongside it is not counted. Weak links are left out unless you include them.

Before: where it came from

Gemini 3 Deep Think has 42 documented ancestors across 9 chapters, reaching back to Recurrent networks in 1990. Showing its direct parents and the 14 turning points among them.

Gemini 3 Deep Think has 42 documented ancestors across 9 chapters, reaching back to Recurrent networks in 1990. Showing all of them.

Gemini 3 Deep Think has 75 recorded ancestors, including indirect ones, across 12 chapters, reaching back to Recurrent networks in 1990. Showing its direct parents and the 20 turning points among them.

Gemini 3 Deep Think has 75 recorded ancestors, including indirect ones, across 12 chapters, reaching back to Recurrent networks in 1990. Showing all of them.

  1. 2026Gemini 3 Deep ThinkThis milestone.
  2. 2025Gemini 3Gemini 3 Deep Think built directly on thisChapter 14. Where the threads meet now
  3. 2025IMO goldGemini 3 Deep Think was influenced by thisChapter 12. Thinking longer
  4. 2025Gemini 2.5IMO gold built directly on this
    Gemini 3 built directly on this    Chapter 12. Thinking longer
  5. 2024Gemini 2.0Gemini 2.5 built directly on thisChapter 14. Where the threads meet now
  6. 2024o1 Turning pointGemini 2.5 was influenced by thisChapter 12. Thinking longer
  7. 2024Test-time computeIMO gold was influenced by thisChapter 12. Thinking longer
  8. 2024Gemini 1.5Gemini 3 was influenced by thisChapter 10. Reading more than you remember
  9. 2023Gemini 1.0Gemini 1.5 built directly on thisChapter 11. Seeing and hearing
  10. 2023Process supervisionTest-time compute was influenced by thisChapter 12. Thinking longer
  11. 2022PaLMGemini 1.0 succeeded thisChapter 5. Scale becomes a science
  12. 2022Self-consistencyTest-time compute built directly on thisChapter 12. Thinking longer
  13. 2022Chain of thought Turning pointo1 was influenced by this
    Self-consistency built directly on this
    Process supervision built directly on this    Chapter 12. Thinking longer
  14. 2020Vision TransformerGemini 1.0 was influenced by thisChapter 11. Seeing and hearing
  15. 2020GShard Turning pointGemini 1.5 was influenced by thisChapter 5. Scale becomes a science
  16. 2020GPT-3 Turning pointChain of thought was influenced by thisChapter 5. Scale becomes a science
  17. 2020Scaling laws Turning pointGPT-3 was influenced by thisChapter 5. Scale becomes a science
  18. 2019Sparse Transformer Turning pointGPT-3 built directly on thisChapter 4. Pretrain once, use everywhere
  19. 2019GPT-2 Turning pointGPT-3 built directly on thisChapter 4. Pretrain once, use everywhere
  20. 2019WebTextGPT-2 was influenced by thisChapter 4. Pretrain once, use everywhere
  21. 2018BERT Turning pointVision Transformer was influenced by thisChapter 4. Pretrain once, use everywhere
  22. 2018GPT-1BERT was influenced by thisChapter 4. Pretrain once, use everywhere
  23. 2018ELMoBERT was influenced by thisChapter 4. Pretrain once, use everywhere
  24. 2018ULMFiTBERT was influenced by thisChapter 4. Pretrain once, use everywhere
  25. 2017CoVeELMo was influenced by thisChapter 3. Attention, then only attention
  26. 2017Transformer Turning pointVision Transformer built directly on thisChapter 3. Attention, then only attention
  27. 2017Sparse MoE Turning pointGShard built directly on thisChapter 3. Attention, then only attention
  28. 2016Layer normTransformer built directly on thisChapter 3. Attention, then only attention
  29. 2015Residual connectionsTransformer was influenced by thisChapter 3. Attention, then only attention
  30. 2015LM pretraining Turning pointBERT was influenced by thisChapter 2. Words become vectors
  31. 2015BPE tokenizationGPT-2 built directly on thisChapter 2. Words become vectors
  32. 2015Luong attentionTransformer was influenced by thisChapter 3. Attention, then only attention
  33. 2014AdamTransformer was influenced by thisChapter 2. Words become vectors
  34. 2014GloVeELMo built directly on thisChapter 2. Words become vectors
  35. 2014Seq2seq Turning pointTransformer built directly on thisChapter 2. Words become vectors
  36. 2014Attention Turning pointTransformer built directly on thisChapter 3. Attention, then only attention
  37. 2014GRU / encoder-decoderAttention built directly on thisChapter 2. Words become vectors
  38. 2013word2vecELMo was influenced by thisChapter 2. Words become vectors
  39. 2011NLP from scratchELMo was influenced by thisChapter 1. Language as probability
  40. 2003Neural LMNLP from scratch was influenced by this
    word2vec was influenced by this    Chapter 1. Language as probability
  41. 1997LSTM Turning pointSparse MoE built directly on thisChapter 1. Language as probability
  42. 1991Mixture of expertsSparse MoE built directly on thisChapter 1. Language as probability
  43. 1990Recurrent networksLSTM was influenced by thisChapter 1. Language as probability
  1. 2026Gemini 3 Deep ThinkThis milestone.
  2. 2025Gemini 3Gemini 3 Deep Think built directly on thisChapter 14. Where the threads meet now
  3. 2025IMO goldGemini 3 Deep Think was influenced by thisChapter 12. Thinking longer
  4. 2025Gemini 2.5IMO gold built directly on this
    Gemini 3 built directly on this    Chapter 12. Thinking longer
  5. 2024Gemini 2.0Gemini 2.5 built directly on thisChapter 14. Where the threads meet now
  6. 2024Computer useGemini 2.0 was influenced by this (indirect influence)Chapter 13. Models that act
  7. 2024o1 Turning pointGemini 2.5 was influenced by thisChapter 12. Thinking longer
  8. 2024Test-time computeIMO gold was influenced by thisChapter 12. Thinking longer
  9. 2024Claude 3.5 SonnetComputer use built directly on thisChapter 14. Where the threads meet now
  10. 2024Claude 3Claude 3.5 Sonnet built directly on thisChapter 14. Where the threads meet now
  11. 2024Gemini 1.5Gemini 3 was influenced by thisChapter 10. Reading more than you remember
  12. 2023Gemini 1.0Gemini 1.5 built directly on thisChapter 11. Seeing and hearing
  13. 2023GPT-4VComputer use was influenced by thisChapter 11. Seeing and hearing
  14. 2023Lost in the middleGemini 1.5 was influenced by this (indirect influence)Chapter 10. Reading more than you remember
  15. 2023Function callingComputer use was influenced by this (indirect influence)Chapter 13. Models that act
  16. 2023Process supervisionTest-time compute was influenced by thisChapter 12. Thinking longer
  17. 2023Tree of thoughtsTest-time compute was influenced by this (indirect influence)Chapter 12. Thinking longer
  18. 2023100K contextLost in the middle was influenced by this (indirect influence)Chapter 10. Reading more than you remember
  19. 2023GPT-4 Turning pointGPT-4V built directly on thisChapter 7. The assistant goes public
  20. 2023Claude100K context built directly on thisChapter 7. The assistant goes public
  21. 2023ToolformerFunction calling was influenced by this (indirect influence)Chapter 13. Models that act
  22. 2022Constitutional AIClaude built directly on thisChapter 6. Teaching models what people want
  23. 2022GPT-3.5 Turning pointGPT-4 succeeded thisChapter 7. The assistant goes public
  24. 2022ReActFunction calling was influenced by this (indirect influence)Chapter 13. Models that act
  25. 2022HH-RLHFClaude was influenced by thisChapter 6. Teaching models what people want
  26. 2022PaLMGemini 1.0 succeeded thisChapter 5. Scale becomes a science
  27. 2022STaRTest-time compute was influenced by this (indirect influence)Chapter 12. Thinking longer
  28. 2022Self-consistencyTest-time compute built directly on thisChapter 12. Thinking longer
  29. 2022InstructGPT Turning pointGPT-4 built directly on thisChapter 6. Teaching models what people want
  30. 2022Chain of thought Turning pointo1 was influenced by this
    Self-consistency built directly on this
    STaR was influenced by this    Chapter 12. Thinking longer
  31. 2021WebGPTReAct was influenced by this
    Toolformer was influenced by this    Chapter 13. Models that act
  32. 2021HHH assistantHH-RLHF built directly on thisChapter 6. Teaching models what people want
  33. 2021FLANInstructGPT was influenced by thisChapter 6. Teaching models what people want
  34. 2021CLIPGPT-4V was influenced by this (indirect influence)Chapter 11. Seeing and hearing
  35. 2020Vision TransformerGemini 1.0 was influenced by thisChapter 11. Seeing and hearing
  36. 2020RLHF for summarisation Turning pointHH-RLHF built directly on thisChapter 6. Teaching models what people want
  37. 2020GShard Turning pointGemini 1.5 was influenced by thisChapter 5. Scale becomes a science
  38. 2020GPT-3 Turning pointChain of thought was influenced by thisChapter 5. Scale becomes a science
  39. 2020RAGLost in the middle was influenced by thisChapter 10. Reading more than you remember
  40. 2020Dense retrievalRAG built directly on thisChapter 10. Reading more than you remember
  41. 2020Scaling laws Turning pointGPT-3 was influenced by thisChapter 5. Scale becomes a science
  42. 2019BARTRAG built directly on thisChapter 4. Pretrain once, use everywhere
  43. 2019T5 Turning pointFLAN was influenced by thisChapter 4. Pretrain once, use everywhere
  44. 2019C4 Turning pointT5 was influenced by thisChapter 4. Pretrain once, use everywhere
  45. 2019RLHF for LMsRLHF for summarisation built directly on thisChapter 6. Teaching models what people want
  46. 2019Sparse Transformer Turning pointGPT-3 built directly on thisChapter 4. Pretrain once, use everywhere
  47. 2019GPT-2 Turning pointGPT-3 built directly on thisChapter 4. Pretrain once, use everywhere
  48. 2019WebTextGPT-2 was influenced by thisChapter 4. Pretrain once, use everywhere
  49. 2019Transformer-XLSparse Transformer was influenced by this (indirect influence)Chapter 4. Pretrain once, use everywhere
  50. 2018BERT Turning pointVision Transformer was influenced by thisChapter 4. Pretrain once, use everywhere
  51. 2018SentencePieceT5 built directly on thisChapter 4. Pretrain once, use everywhere
  52. 2018GPT-1BERT was influenced by thisChapter 4. Pretrain once, use everywhere
  53. 2018ELMoBERT was influenced by thisChapter 4. Pretrain once, use everywhere
  54. 2018ULMFiTBERT was influenced by thisChapter 4. Pretrain once, use everywhere
  55. 2017CoVeELMo was influenced by thisChapter 3. Attention, then only attention
  56. 2017RLHF origino1 was influenced by this (indirect influence)Chapter 6. Teaching models what people want
  57. 2017Transformer Turning pointVision Transformer built directly on thisChapter 3. Attention, then only attention
  58. 2017ConvS2STransformer was influenced by this (indirect influence)Chapter 3. Attention, then only attention
  59. 2017FAISSRAG was influenced by thisChapter 10. Reading more than you remember
  60. 2017Sparse MoE Turning pointGShard built directly on thisChapter 3. Attention, then only attention
  61. 2016Layer normTransformer built directly on thisChapter 3. Attention, then only attention
  62. 2015Residual connectionsTransformer was influenced by thisChapter 3. Attention, then only attention
  63. 2015LM pretraining Turning pointBERT was influenced by thisChapter 2. Words become vectors
  64. 2015BPE tokenizationGPT-2 built directly on thisChapter 2. Words become vectors
  65. 2015Luong attentionTransformer was influenced by thisChapter 3. Attention, then only attention
  66. 2014AdamTransformer was influenced by thisChapter 2. Words become vectors
  67. 2014GloVeELMo built directly on thisChapter 2. Words become vectors
  68. 2014Seq2seq Turning pointTransformer built directly on thisChapter 2. Words become vectors
  69. 2014Attention Turning pointTransformer built directly on thisChapter 3. Attention, then only attention
  70. 2014GRU / encoder-decoderAttention built directly on thisChapter 2. Words become vectors
  71. 2013word2vecELMo was influenced by thisChapter 2. Words become vectors
  72. 2011NLP from scratchELMo was influenced by thisChapter 1. Language as probability
  73. 2003Neural LMNLP from scratch was influenced by this
    word2vec was influenced by this    Chapter 1. Language as probability
  74. 1997LSTM Turning pointSparse MoE built directly on thisChapter 1. Language as probability
  75. 1991Mixture of expertsSparse MoE built directly on thisChapter 1. Language as probability
  76. 1990Recurrent networksLSTM was influenced by thisChapter 1. Language as probability

After: what it led to

No documented descendants are recorded for Gemini 3 Deep Think without weak links.

No documented descendants are recorded for Gemini 3 Deep Think without weak links.

No recorded descendants are recorded for Gemini 3 Deep Think.

No recorded descendants are recorded for Gemini 3 Deep Think.

Direct links and their sources

Where it came from

Built directly on

Influenced by

What it led to

None recorded in the sources used.