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AI model family tree

How each model family grew, one line per family. Every dot is one version — tap it to open the record that documents the release.

Only versions we have a record for. Missing ones appear as records are added.

See it as a map

At a glance

AI model family tree — 11 families, 160 versionsOne line per family from 2018 to 2026, with a dot for each version in release order. The list below has the same information as text.GPTGPT-1 · Jun 11, 2018GPT-2 · Feb 14, 2019GPT-3 · May 28, 2020InstructGPT · Jan 27, 2022ChatGPT · Nov 30, 2022GPT-4 · Mar 14, 2023GPT-4V(ision) · Sep 25, 2023GPT-4 Turbo · Nov 6, 2023GPT-4o · May 13, 2024GPT-4o mini · Jul 18, 2024o1-preview / o1-mini · Sep 12, 2024o3-mini · Jan 31, 2025GPT-4.5 · Feb 27, 2025GPT-4.1 · Apr 14, 2025o3 / o4-mini · Apr 16, 2025gpt-oss-120b / 20b · Aug 5, 2025GPT-5 · Aug 7, 2025GPT-5.1 · Nov 12, 2025GPT-5.2 · Dec 11, 2025GPT-5.5 · Apr 23, 2026GPT-6 Astra · Sep 3, 2026GPT-6 Sol / GPT-6 Luna · Sep 22, 2026GPT-6.1 Sol · Sep 29, 2026GeminiBERT · Oct 11, 2018T5 · Oct 23, 2019LaMDA · May 18, 2021PaLM · Apr 4, 2022Bard · Feb 6, 2023PaLM 2 · May 10, 2023Gemini 1.0 · Dec 6, 2023Gemini 1.5 Pro · Feb 15, 2024Gemini 2.0 Flash · Dec 11, 2024Gemini 2.0 Flash Thinking Experimental · Dec 19, 2024Gemini Robotics / Robotics-ER · Mar 12, 2025Gemini 2.5 Pro Experimental · Mar 25, 2025Gemini 2.5 Flash Image (nano-banana) · Aug 26, 2025Gemini Robotics 1.5 / ER 1.5 · Sep 25, 2025Gemini 2.5 Computer Use · Oct 7, 2025Gemini 3 Pro · Nov 18, 2025Nano Banana Pro (Gemini 3 Pro Image) · Nov 20, 2025Gemini Robotics 2 / ER 2 · Jul 30, 2026Gemini 3.8 Flash / 3.8 Flash Cyber · Sep 2, 2026Gemini 3.8 Live / 3.8 Live Extended Thinking · Sep 15, 2026Gemini 4 Argon · Sep 30, 2026Korean modelsHyperCLOVA · May 25, 2021HyperCLOVA X · Aug 24, 2023SOLAR 10.7B · Dec 14, 2023EXAONE 3.0 · Aug 7, 2024Solar Pro Preview · Sep 11, 2024EXAONE 3.5 · Dec 9, 2024Kanana Nano 2.1B · Feb 27, 2025EXAONE Deep · Mar 18, 2025HyperCLOVA X SEED · Apr 23, 2025Kanana 1.5 · May 23, 2025A.X 4.0 · Jul 3, 2025EXAONE 4.0 · Jul 15, 2025A.X 3.1 · Jul 24, 2025A.X K1 · Dec 2025K-EXAONE · Dec 2025Solar Open 100B · Dec 2025VAETKI · Dec 2025Kanana-2 · Dec 19, 2025EXAONE 4.5 33B · Apr 9, 2026Solar Open 2 · Jul 22, 2026K-EXAONE 2.0 · Jul 31, 2026LlamaLLaMA 1 · Feb 24, 2023Llama 2 · Jul 18, 2023Code Llama · Aug 24, 2023Llama 3 · Apr 18, 2024Llama 3.1 · Jul 23, 2024Llama 3.2 · Sep 25, 2024Llama 3.3 · Dec 6, 2024Llama 4 Scout·Maverick · Apr 5, 2025Muse Spark · Apr 8, 2026Muse Glimmer 30B · Aug 10, 2026Muse Spark 1.3 · Sep 2, 2026Muse Spark Open · Oct 15, 2026ClaudeClaude · Mar 14, 2023Claude 2 · Jul 11, 2023Claude Instant 1.2 · Aug 9, 2023Claude 2.1 · Nov 21, 2023Claude 3 · Mar 4, 2024Claude 3.5 Sonnet · Jun 20, 2024Claude 3.5 Haiku / upgraded 3.5 Sonnet · Oct 22, 2024Claude 3.7 Sonnet · Feb 24, 2025Claude Opus 4 / Sonnet 4 · May 22, 2025Claude Opus 4.1 · Aug 5, 2025Claude Sonnet 4.5 · Sep 29, 2025Claude Haiku 4.5 · Oct 15, 2025Claude Opus 4.5 · Nov 24, 2025Claude Opus 4.6 · Feb 5, 2026Claude Sonnet 4.6 · Feb 17, 2026Claude Opus 4.7 · Apr 16, 2026Claude Fable 5.1 / Claude Mythos 5.1 · Sep 1, 2026Claude Opus 5.5 · Sep 22, 2026Claude Sonnet 5.5 · Sep 28, 2026Claude Haiku 5.5 · Oct 7, 2026QwenQwen-7B · Aug 3, 2023Qwen2 · Jun 7, 2024Qwen2.5 · Sep 19, 2024QwQ-32B-Preview · Nov 28, 2024QwQ-32B · Mar 6, 2025Qwen3 · Apr 29, 2025Qwen3-Coder · Jul 22, 2025Qwen3.5-397B-A17B · Feb 2026Qwen3.5-Omni · Apr 17, 2026Qwen3.6-27B · Apr 22, 2026Qwen3.8-2.4T-A95B · Aug 2026Qwen3.8-27B · Aug 2026Qwen3.8-Max · Aug 4, 2026MistralMistral 7B · Sep 27, 2023Mixtral 8x7B · Dec 11, 2023Mistral Large · Feb 26, 2024Mixtral 8x22B · Apr 17, 2024Codestral · May 29, 2024Mistral Large 2 · Jul 24, 2024Mistral Small 3 · Jan 30, 2025Magistral · Jun 10, 2025Mistral 3 · Dec 2, 2025Leanstral · Mar 16, 2026Mistral Small 4 · Mar 16, 2026Shieldstral · Aug 4, 2026GrokGrok · Nov 3, 2023Grok-1.5 · Mar 28, 2024Grok-1.5V · Apr 12, 2024Grok-2 / Grok-2 mini · Aug 13, 2024Grok 3 / Grok 3 mini · Feb 19, 2025Grok 4 / Grok 4 Heavy · Jul 9, 2025grok-code-fast-1 · Aug 28, 2025Grok 4 Fast · Sep 19, 2025Grok 4.1 · Nov 17, 2025Grok 4.5 · Jul 16, 2026Grok 4.6 · Aug 12, 2026DeepSeekDeepSeek LLM · Nov 29, 2023DeepSeekMath · Feb 5, 2024DeepSeek-V2 · May 7, 2024DeepSeek-Coder-V2 · Jun 17, 2024DeepSeek-V3 · Dec 2024DeepSeek-R1 · Jan 20, 2025DeepSeek-V3.1 · Aug 21, 2025DeepSeek-V3.2-Exp · Sep 29, 2025DeepSeek-OCR · Oct 21, 2025DeepSeek-V3.2 · Dec 1, 2025DeepSeek V4-Pro / V4-Flash · Apr 24, 2026DeepSeek-V4.1-Flash · Sep 17, 2026GemmaGemma 1 · Feb 21, 2024Gemma 2 · Jun 27, 2024Gemma 3 · Mar 12, 2025Gemma 3n · Jun 26, 2025Gemma 4 · Apr 2, 2026DiffusionGemma · Jul 31, 2026EmbeddingGemma 2 · Oct 6, 2026KimiKimi K1.5 · Jan 20, 2025Kimi K2 · Jul 2025Kimi Linear · Oct 30, 2025Kimi K2 Thinking · Nov 6, 2025Kimi K2.5 · Jan 29, 2026Kimi K2.6 · Apr 21, 2026Kimi K2.7-Code · Jun 16, 2026Kimi K3 · Jul 28, 2026
Where labels would overlap, only the dot is drawn — point at it to see the name; every version is in the list below.

11 families

Pick a family to walk through its versions one by one.

OpenAI

GPT

OpenAI's GPT language models, shown together with ChatGPT, the o-series reasoning models and its open-weight release.

23 versions
Latest · GPT-6.1 Sol, Sep 29, 2026Google

Gemini

Google's flagship AI model family, shown with the earlier T5 and specialist models for images, robots and more.

21 versions
Latest · Gemini 4 Argon, Sep 30, 2026LG AI Research, NAVER and others

Korean models

Large language models built by Korean companies: LG, NAVER, SK Telecom, Upstage, Kakao and NC AI.

21 versions
Latest · K-EXAONE 2.0, Jul 31, 2026Meta

Llama

Meta's Llama models, which helped popularize open weights; since 2026 Meta has also released models under the Muse name.

12 versions
Latest · Muse Spark Open, Oct 15, 2026Anthropic

Claude

Anthropic's Claude models, told apart by tier names such as Opus and Sonnet and by version number.

20 versions
Latest · Claude Haiku 5.5, Oct 7, 2026Alibaba

Qwen

Alibaba's Qwen models, released as open weights across a wide range of sizes.

13 versions
Latest · Qwen3.8-Max, Aug 4, 2026Mistral AI

Mistral

Models from France's Mistral AI, many of them released as Apache 2.0 open weights.

12 versions
Latest · Shieldstral, Aug 4, 2026xAI

Grok

xAI's Grok models, which launched touting real-time knowledge from the X platform.

11 versions
Latest · Grok 4.6, Aug 12, 2026DeepSeek

DeepSeek

Models from China's DeepSeek, mostly released as open weights under permissive licenses such as MIT.

12 versions
Latest · DeepSeek-V4.1-Flash, Sep 17, 2026Google

Gemma

Google's open-weight Gemma models, many of them small enough to run on your own device.

7 versions
Latest · EmbeddingGemma 2, Oct 6, 2026Moonshot AI

Kimi

Moonshot AI's Kimi models, including trillion-parameter-class models released as open weights.

8 versions
Latest · Kimi K3, Jul 28, 2026

Every version, as a list

The chart above, as text. Each date comes from the record that documents the release.

GPT

  1. GPT-1Jun 11, 2018
  2. GPT-2Feb 14, 2019
  3. GPT-3May 28, 2020
  4. InstructGPTJan 27, 2022
  5. ChatGPTNov 30, 2022
  6. GPT-4Mar 14, 2023
  7. GPT-4V(ision)Sep 25, 2023
  8. GPT-4 TurboNov 6, 2023
  9. GPT-4oMay 13, 2024
  10. GPT-4o miniJul 18, 2024
  11. o1-preview / o1-miniSep 12, 2024
  12. o3-miniJan 31, 2025
  13. GPT-4.5Feb 27, 2025
  14. GPT-4.1Apr 14, 2025
  15. o3 / o4-miniApr 16, 2025
  16. gpt-oss-120b / 20bAug 5, 2025
  17. GPT-5Aug 7, 2025
  18. GPT-5.1Nov 12, 2025
  19. GPT-5.2Dec 11, 2025
  20. GPT-5.5Apr 23, 2026
  21. GPT-6 AstraSep 3, 2026
  22. GPT-6 Sol / GPT-6 LunaSep 22, 2026
  23. GPT-6.1 SolSep 29, 2026

Gemini

  1. BERTOct 11, 2018
  2. T5Oct 23, 2019
  3. LaMDAMay 18, 2021
  4. PaLMApr 4, 2022
  5. BardFeb 6, 2023
  6. PaLM 2May 10, 2023
  7. Gemini 1.0Dec 6, 2023
  8. Gemini 1.5 ProFeb 15, 2024
  9. Gemini 2.0 FlashDec 11, 2024
  10. Gemini 2.0 Flash Thinking ExperimentalDec 19, 2024
  11. Gemini Robotics / Robotics-ERMar 12, 2025
  12. Gemini 2.5 Pro ExperimentalMar 25, 2025
  13. Gemini 2.5 Flash Image (nano-banana)Aug 26, 2025
  14. Gemini Robotics 1.5 / ER 1.5Sep 25, 2025
  15. Gemini 2.5 Computer UseOct 7, 2025
  16. Gemini 3 ProNov 18, 2025
  17. Nano Banana Pro (Gemini 3 Pro Image)Nov 20, 2025
  18. Gemini Robotics 2 / ER 2Jul 30, 2026
  19. Gemini 3.8 Flash / 3.8 Flash CyberSep 2, 2026
  20. Gemini 3.8 Live / 3.8 Live Extended ThinkingSep 15, 2026
  21. Gemini 4 ArgonSep 30, 2026

Korean models

  1. HyperCLOVAMay 25, 2021
  2. HyperCLOVA XAug 24, 2023
  3. SOLAR 10.7BDec 14, 2023
  4. EXAONE 3.0Aug 7, 2024
  5. Solar Pro PreviewSep 11, 2024
  6. EXAONE 3.5Dec 9, 2024
  7. Kanana Nano 2.1BFeb 27, 2025
  8. EXAONE DeepMar 18, 2025
  9. HyperCLOVA X SEEDApr 23, 2025
  10. Kanana 1.5May 23, 2025
  11. A.X 4.0Jul 3, 2025
  12. EXAONE 4.0Jul 15, 2025
  13. A.X 3.1Jul 24, 2025
  14. A.X K1Dec 2025
  15. K-EXAONEDec 2025
  16. Solar Open 100BDec 2025
  17. VAETKIDec 2025
  18. Kanana-2Dec 19, 2025
  19. EXAONE 4.5 33BApr 9, 2026
  20. Solar Open 2Jul 22, 2026
  21. K-EXAONE 2.0Jul 31, 2026

Llama

  1. LLaMA 1Feb 24, 2023
  2. Llama 2Jul 18, 2023
  3. Code LlamaAug 24, 2023
  4. Llama 3Apr 18, 2024
  5. Llama 3.1Jul 23, 2024
  6. Llama 3.2Sep 25, 2024
  7. Llama 3.3Dec 6, 2024
  8. Llama 4 Scout·MaverickApr 5, 2025
  9. Muse SparkApr 8, 2026
  10. Muse Glimmer 30BAug 10, 2026
  11. Muse Spark 1.3Sep 2, 2026
  12. Muse Spark OpenOct 15, 2026

Claude

  1. ClaudeMar 14, 2023
  2. Claude 2Jul 11, 2023
  3. Claude Instant 1.2Aug 9, 2023
  4. Claude 2.1Nov 21, 2023
  5. Claude 3Mar 4, 2024
  6. Claude 3.5 SonnetJun 20, 2024
  7. Claude 3.5 Haiku / upgraded 3.5 SonnetOct 22, 2024
  8. Claude 3.7 SonnetFeb 24, 2025
  9. Claude Opus 4 / Sonnet 4May 22, 2025
  10. Claude Opus 4.1Aug 5, 2025
  11. Claude Sonnet 4.5Sep 29, 2025
  12. Claude Haiku 4.5Oct 15, 2025
  13. Claude Opus 4.5Nov 24, 2025
  14. Claude Opus 4.6Feb 5, 2026
  15. Claude Sonnet 4.6Feb 17, 2026
  16. Claude Opus 4.7Apr 16, 2026
  17. Claude Fable 5.1 / Claude Mythos 5.1Sep 1, 2026
  18. Claude Opus 5.5Sep 22, 2026
  19. Claude Sonnet 5.5Sep 28, 2026
  20. Claude Haiku 5.5Oct 7, 2026

Qwen

  1. Qwen-7BAug 3, 2023
  2. Qwen2Jun 7, 2024
  3. Qwen2.5Sep 19, 2024
  4. QwQ-32B-PreviewNov 28, 2024
  5. QwQ-32BMar 6, 2025
  6. Qwen3Apr 29, 2025
  7. Qwen3-CoderJul 22, 2025
  8. Qwen3.5-397B-A17BFeb 2026
  9. Qwen3.5-OmniApr 17, 2026
  10. Qwen3.6-27BApr 22, 2026
  11. Qwen3.8-2.4T-A95BAug 2026
  12. Qwen3.8-27BAug 2026
  13. Qwen3.8-MaxAug 4, 2026

Mistral

  1. Mistral 7BSep 27, 2023
  2. Mixtral 8x7BDec 11, 2023
  3. Mistral LargeFeb 26, 2024
  4. Mixtral 8x22BApr 17, 2024
  5. CodestralMay 29, 2024
  6. Mistral Large 2Jul 24, 2024
  7. Mistral Small 3Jan 30, 2025
  8. MagistralJun 10, 2025
  9. Mistral 3Dec 2, 2025
  10. LeanstralMar 16, 2026
  11. Mistral Small 4Mar 16, 2026
  12. ShieldstralAug 4, 2026

Grok

  1. GrokNov 3, 2023
  2. Grok-1.5Mar 28, 2024
  3. Grok-1.5VApr 12, 2024
  4. Grok-2 / Grok-2 miniAug 13, 2024
  5. Grok 3 / Grok 3 miniFeb 19, 2025
  6. Grok 4 / Grok 4 HeavyJul 9, 2025
  7. grok-code-fast-1Aug 28, 2025
  8. Grok 4 FastSep 19, 2025
  9. Grok 4.1Nov 17, 2025
  10. Grok 4.5Jul 16, 2026
  11. Grok 4.6Aug 12, 2026

DeepSeek

  1. DeepSeek LLMNov 29, 2023
  2. DeepSeekMathFeb 5, 2024
  3. DeepSeek-V2May 7, 2024
  4. DeepSeek-Coder-V2Jun 17, 2024
  5. DeepSeek-V3Dec 2024
  6. DeepSeek-R1Jan 20, 2025
  7. DeepSeek-V3.1Aug 21, 2025
  8. DeepSeek-V3.2-ExpSep 29, 2025
  9. DeepSeek-OCROct 21, 2025
  10. DeepSeek-V3.2Dec 1, 2025
  11. DeepSeek V4-Pro / V4-FlashApr 24, 2026
  12. DeepSeek-V4.1-FlashSep 17, 2026

Gemma

  1. Gemma 1Feb 21, 2024
  2. Gemma 2Jun 27, 2024
  3. Gemma 3Mar 12, 2025
  4. Gemma 3nJun 26, 2025
  5. Gemma 4Apr 2, 2026
  6. DiffusionGemmaJul 31, 2026
  7. EmbeddingGemma 2Oct 6, 2026

Kimi

  1. Kimi K1.5Jan 20, 2025
  2. Kimi K2Jul 2025
  3. Kimi LinearOct 30, 2025
  4. Kimi K2 ThinkingNov 6, 2025
  5. Kimi K2.5Jan 29, 2026
  6. Kimi K2.6Apr 21, 2026
  7. Kimi K2.7-CodeJun 16, 2026
  8. Kimi K3Jul 28, 2026