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Model

GPT-5.2

GPT-5.2 is a model family OpenAI released on 11 December 2025, with Instant, Thinking and Pro versions and a coding variant. It was aimed at professional work such as spreadsheets and presentations.

Status DeprecatedModality Text, ImageContext (K tokens) 400 Era Generative AI for everyone

License
Proprietary
Access
API, App
Release date
Developer
OpenAI

What it is

GPT-5.2 is a model family from OpenAI. It was released on 11 December 2025 and included GPT-5.2 Instant, GPT-5.2 Thinking (with standard and extended thinking) and GPT-5.2 Pro, along with the coding variant GPT-5.2-Codex.[1]

Origins

The release came about three weeks after Google’s Gemini 3 Pro.[1] Media reports said an internal “code red” memo accelerated the launch from a planned late-December date.[1][2] Fidji Simo said the company had been working on the release for months, but acknowledged that the “code red” had helped.[1]

Main features

OpenAI highlighted gains in spreadsheets, financial modelling, presentations and multi-step projects.[1] Box CEO Aaron Levie said the model scored 7 points better than GPT-5.1 on Box’s knowledge-work tests.[1]

The API documentation gives GPT-5.2 a context window of 400,000 tokens and a limit of up to 128,000 output tokens. Its knowledge cutoff is 31 August 2025.[3] Developers can set reasoning effort from “none”, the default, up to “xhigh”.[3]

Pricing was $1.75 per million input tokens and $14 per million output tokens. GPT-5.2 Pro cost $21 and $168 per million tokens on the same basis.[3][4]

Place in the lineage

GPT-5.2 succeeded GPT-5.1. It was followed by GPT-5.3-Codex in February 2026 and by GPT-5.4 in March 2026.[1]

The names describe different ways of using the family in ChatGPT: Instant, Thinking (in standard and extended forms) and Pro. The Thinking versions are the ones that reason through a problem before answering, which is the same idea described in the GPT-5.1 entries.[1]

API providers usually bill by the million tokens. For this family the output price was far higher than the input price, so long answers cost considerably more than long prompts.[3][4]

Impact and later changes

The Guardian reported in January 2026 that GPT-5.2 had cited Grokipedia as a source.[1] Later in the lifecycle, GPT-5.2 was discontinued in ChatGPT on 12 June 2026, and gpt-5.2-codex was shut down in the API on 23 July 2026.[5][6]

CapabilitiesLarge language modelsReasoningCode

ApplicationsEnterprise

Version history

22
  1. 2018
    • Jun 11, 2018 GPT-1

      GPT-1 was OpenAI's first generative pre-trained transformer, published in June 2018. It showed that one language model, pre-trained on unlabelled text and then fine-tuned, could improve results on many language tasks.

  2. 2019
    • Feb 14, 2019 GPT-2

      GPT-2 is a large language model that OpenAI announced in February 2019. Its largest version has 1.5 billion parameters. OpenAI first withheld the full model, then released it in stages through November 2019.

  3. 2020
    • May 28, 2020 GPT-3

      GPT-3 is an autoregressive language model with 175 billion parameters, described in a May 2020 paper. It could perform new tasks from a few examples in the prompt, without any gradient updates, and it was first offered through OpenAI's API.

  4. 2022
    • Mar 15, 2022 GPT-3.5 (text-davinci-002/003)

      GPT-3.5 is the family of OpenAI language models between GPT-3 and GPT-4, released through API models such as text-davinci-002 and text-davinci-003 and underlying the first version of ChatGPT.

  5. 2023
    • Mar 1, 2023 GPT-3.5 Turbo

      GPT-3.5 Turbo was the chat-optimised GPT-3.5 model OpenAI released through its API on 1 March 2023, priced at a tenth of the cost of earlier models and later replaced in ChatGPT by GPT-4o mini.

    • Mar 14, 2023 GPT-4

      GPT-4 is OpenAI's large multimodal model, released on 14 March 2023. It accepts image and text input, scored near the top of human test-takers on a simulated bar exam, and was succeeded by GPT-4 Turbo, GPT-4o and GPT-5.

    • Nov 6, 2023 GPT-4 Turbo

      GPT-4 Turbo is a cheaper, more capable version of OpenAI's GPT-4, announced on 6 November 2023 with a 128,000-token context window and lower API prices.

  6. 2024
    • May 13, 2024 GPT-4o

      GPT-4o is a multimodal model from OpenAI, released in May 2024, that takes text, audio, image and video as input and generates text, audio and image output within one neural network. It was removed from ChatGPT in February 2026.

    • Jul 18, 2024 GPT-4o mini

      A small, low-cost language model OpenAI released on 18 July 2024, priced far below GPT-4o and reported at 82% on MMLU; it replaced GPT-3.5 Turbo in ChatGPT on launch day.

    • Sep 12, 2024 OpenAI o1

      OpenAI o1 is the first reasoning model series from OpenAI, introduced in September 2024. It thinks through a long internal chain of thought before answering, and it was the base for later reasoning models such as o3.

  7. 2025
    • Feb 27, 2025 GPT-4.5

      GPT-4.5 is a large language model OpenAI released on 27 February 2025 under the code name "Orion". It was its largest chat model at the time, priced far above GPT-4o, and was retired from general availability within months.

    • Apr 14, 2025 GPT-4.1 (with mini and nano)

      OpenAI's April 2025 family of three API models — GPT-4.1, GPT-4.1 mini and GPT-4.1 nano — offering a context window of over a million tokens, low prices per token and stronger coding scores. It was succeeded by GPT-5.

    • Apr 16, 2025 OpenAI o3

      OpenAI's second-generation reasoning model, announced in December 2024 and released in April 2025, which posted large gains over o1 on science, software-engineering and competitive-programming benchmarks before being succeeded by GPT-5.

    • Aug 7, 2025 GPT-5

      GPT-5 is OpenAI's fifth GPT foundation model, released on 7 August 2025. It pairs a fast model with a deeper reasoning model and a router that chooses between them for each request.

    • Nov 12, 2025 GPT-5.1

      GPT-5.1 is an update to GPT-5 released by OpenAI on 12 November 2025. It added a warmer default personality with selectable styles, and its API version has been scheduled for shutdown in 2027.

    • Dec 11, 2025 GPT-5.2 · This page

      GPT-5.2 is a model family OpenAI released on 11 December 2025, with Instant, Thinking and Pro versions and a coding variant. It was aimed at professional work such as spreadsheets and presentations.

  8. 2026
    • Mar 5, 2026 GPT-5.4

      GPT-5.4 is a model OpenAI released on 5 March 2026 in Thinking and Pro versions. It added built-in computer use and improved deep research, and it was the model that succeeded GPT-5.2.

    • Apr 23, 2026 GPT-5.5

      GPT-5.5 is an OpenAI model released on 23 April 2026 as GPT-5.5 Thinking and Pro, with an API version the next day. It succeeded GPT-5.4 and had a cybersecurity variant in limited preview.

    • Jul 8, 2026 GPT-Live-1

      GPT-Live-1 is OpenAI's full-duplex voice model family, launched 8 July 2026, which lets ChatGPT listen and speak at the same time and replaced the earlier chained speech pipeline in ChatGPT Voice.

    • Jul 9, 2026 GPT-5.6 (Sol, Terra and Luna)

      OpenAI's three-model family released on 9 July 2026 — Luna, Terra and Sol, ordered from least to most capable — with Sol pitched as the company's strongest coding and agent model.

    • Sep 3, 2026 GPT-6 (Astra, Sol, Luna, Instant)

      GPT-6 is OpenAI's sixth-generation model family, launched from 3 September 2026 with GPT-6 Astra, followed by Sol, Luna and Instant. Astra was the first OpenAI model to reach its internal critical cybersecurity threshold.

    • Sep 29, 2026 GPT-6.1 (Sol and Terra)

      OpenAI's late-2026 model family: Sol, released at DevDay on 29 September 2026, and the faster, cheaper Terra on 26 October 2026. A planned Astra version was withheld over safety concerns.

20251

  1. ReleaseOpenAI releases GPT-5.2 after a "code red"

    On 11 December 2025 OpenAI released GPT-5.2 in Instant, Thinking and Pro versions, billing it as stronger at professional work and reporting scores that, on OpenAI's GDPval evaluation, matched or beat human experts.

Developed by1

OpenAI

Foundation for1

GPT-5.3-Codex

Succeeded by1

GPT-5.4

Successor of1

GPT-5.1

Powers2

Codex (OpenAI coding agent)ChatGPT

Uses1

Chain of thought and reasoning models

Notes and sources

  1. GPT-5.2https://en.wikipedia.org/wiki/GPT-5.2
  2. OpenAI fires back at Google with GPT-5.2 after 'code red' memohttps://techcrunch.com/2025/12/11/openai-fires-back-at-google-with-gpt-5-2-after-code-red-memo/
  3. GPT-5.2 Model | OpenAI APIhttps://developers.openai.com/api/docs/models/gpt-5.2
  4. OpenAI model release dateshttps://opper.ai/model-releases/openai
  5. Deprecationshttps://developers.openai.com/api/docs/deprecations
  6. ChatGPThttps://en.wikipedia.org/wiki/ChatGPT

Cite this page: GPT-5.2. TellWorld, https://www.tellworld.net/models/gpt-5-2. Updated 2026-11-08