AsOf

model family · lineage

Latest GPT model: GPT-6.1 Terra

As of November 4, 2026, the latest GPT model on the AsOf record is GPT-6.1 Terra, released on October 26, 2026 by OpenAI, from a primary source (developers.openai.com) and one further source (github.blog). The newest in each other line: GPT-6.1 Sol (September 29, 2026), GPT-6 Luna (September 22, 2026), GPT-6 Astra (September 3, 2026), GPT-5.5 Instant (May 5, 2026), GPT-5.4 mini (March 17, 2026), GPT-5.4 nano (March 17, 2026) and GPT-5.3-Codex (February 24, 2026). The record holds 34 GPT models, 32 with a checked release date.

latest model
GPT-6.1 TerraOctober 26, 2026 · developers.openai.com · as of 2026-11-04

Terra

2 models · oldest first
  1. GPT-5.6 Terrareleased 2026-07-09

    API ids: gpt-5.6-terra

  2. GPT-6.1 Terralatestreleased 2026-10-26

    API ids: gpt-6.1-terra

GPT

14 models · oldest first
  1. GPT-4 Turboreleased 2023-11-06 · deprecated 2026-04-22 · retired 2026-10-23

    API ids: gpt-4-turbo, gpt-4-turbo-2024-04-09, gpt-4-1106-preview, gpt-4-0125-preview, gpt-4-turbo-preview, gpt-4-vision-preview, gpt-4-1106-vision-preview

  2. GPT-3.5 Turboreleased 2024-04-24 · deprecated 2026-04-22 · retired 2026-10-23

    API ids: gpt-3.5-turbo, gpt-3.5-turbo-0613, gpt-3.5-turbo-16k-0613, gpt-3.5-turbo-1106, gpt-3.5-turbo-0125, gpt-3.5-turbo-instruct

  3. GPT-4oreleased 2024-05-13

    API ids: gpt-4o, gpt-4o-2024-05-13, gpt-4o-2024-08-06, gpt-4o-2024-11-20

  4. GPT-4.1released 2025-04-14 · deprecated 2026-10-14

    API ids: gpt-4.1, gpt-4.1-2025-04-14

  5. GPT-5released 2025-08-07 · deprecated 2026-06-11

    API ids: gpt-5, gpt-5-2025-08-07, gpt-5-pro, gpt-5-pro-2025-10-06

  6. GPT-5.1released 2025-11-13 · deprecated 2026-10-01

    API ids: gpt-5.1, gpt-5.1-2025-11-13

  7. GPT-5.2released 2025-12-11

    API ids: gpt-5.2

  8. GPT-5.4released 2026-03-05

    API ids: gpt-5.4, gpt-5.4-pro

  9. GPT-5.5released 2026-04-24

    API ids: gpt-5.5, gpt-5.5-pro

  10. GPT-5.6 Solreleased 2026-07-09

    replaced by GPT-6 Sol

    API ids: gpt-5.6-sol, gpt-5.6

  11. GPT-6 Solreleased 2026-09-22

    replaced GPT-5.6 Sol

    API ids: gpt-6-sol

  12. GPT-6.1 Solreleased 2026-09-29

    API ids: gpt-6.1-sol

  13. GPT-4release not yet checked · deprecated 2026-04-22 · retired 2026-10-23

    API ids: gpt-4, gpt-4-0613, gpt-4-0314, gpt-4-32k, gpt-4-32k-0314, gpt-4-32k-0613

  14. GPT-4.5release not yet checked · deprecated 2025-04-14 · retired 2025-07-14

    API ids: gpt-4.5-preview

Luna

2 models · oldest first
  1. GPT-5.6 Lunareleased 2026-07-09

    replaced by GPT-6 Luna

    API ids: gpt-5.6-luna

  2. GPT-6 Lunareleased 2026-09-22

    replaced GPT-5.6 Luna

    API ids: gpt-6-luna

Astra

1 model · oldest first
  1. GPT-6 Astrareleased 2026-09-03

    API ids: gpt-6-astra

Instant

2 models · oldest first
  1. GPT-5.3 Instantreleased 2026-03-03
  2. GPT-5.5 Instantreleased 2026-05-05

Mini

4 models · oldest first
  1. GPT-4o minireleased 2024-07-18 · deprecated 2026-10-14

    API ids: gpt-4o-mini, gpt-4o-mini-2024-07-18

  2. GPT-4.1 minireleased 2025-04-14 · deprecated 2026-10-14

    API ids: gpt-4.1-mini, gpt-4.1-mini-2025-04-14

  3. GPT-5 minireleased 2025-08-07 · deprecated 2026-06-11

    API ids: gpt-5-mini, gpt-5-mini-2025-08-07

  4. GPT-5.4 minireleased 2026-03-17

    API ids: gpt-5.4-mini

Nano

3 models · oldest first
  1. GPT-4.1 nanoreleased 2025-04-14 · deprecated 2026-04-22 · retired 2026-10-23

    API ids: gpt-4.1-nano, gpt-4.1-nano-2025-04-14

  2. GPT-5 nanoreleased 2025-08-07 · deprecated 2026-06-11

    API ids: gpt-5-nano, gpt-5-nano-2025-08-07

  3. GPT-5.4 nanoreleased 2026-03-17 · deprecated 2026-10-01

    API ids: gpt-5.4-nano, gpt-5.4-nano-2026-03-17

Codex

6 models · oldest first
  1. GPT-5-Codexreleased 2025-09-23 · deprecated 2026-04-22 · retired 2026-07-23

    API ids: gpt-5-codex

  2. GPT-5.1-Codexreleased 2025-11-13 · deprecated 2026-04-22 · retired 2026-07-23

    API ids: gpt-5.1-codex, gpt-5.1-codex-mini

  3. GPT-5.1-Codex-Maxreleased 2025-12-04 · deprecated 2026-04-22 · retired 2026-07-23

    API ids: gpt-5.1-codex-max

  4. GPT-5.2-Codexreleased 2026-01-14 · deprecated 2026-04-22 · retired 2026-07-23

    API ids: gpt-5.2-codex

  5. GPT-5.3-Codex-Sparkreleased 2026-02-12

    API ids: gpt-5.3-codex-spark

  6. GPT-5.3-Codexreleased 2026-02-24 · deprecated 2026-10-01

    API ids: gpt-5.3-codex

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