GPT-5.2

OpenAI · · 29 days after GPT-5.1

Verified

2 of 2 published values traced to a source1 primary source, 2 archived1 not disclosed by the lab1 not researched yet

Why this status

Every value this record asserts — date (2025-12-11) and context window (400,000) — was found in an archived primary source, checked 2026-08-10. Parameter count is not recorded, so nothing is claimed about it. Modalities taken from the documentation's own declaration: "Input Text, image Output Text". Capabilities evidenced from the primary sources: reasoning: “Reasoning token support”.

What these states mean · How records are judged · Has this record changed?

Instant, Thinking and Pro modes, plus a GPT-5.2-Codex variant for coding.

reasoningmultimodallong-contextflagship

Details

ReleasedDecember 11, 2025
stated in developers.openai.com

GPT-5.2 was released on December 11, 2025.

CompanyOpenAI
FamilyGPT
Lineageafter GPT-5.1 · before GPT-5.4
EraReasoning models
TypeLanguage model · LLM
ModalitiesText + Image → Text
CapabilitiesReasoning
WeightsProprietary
LicenceNot applicable — proprietary
Context window400K tokens
stated in developers.openai.com

GPT-5.2 supports a context window of 400,000 tokens.

ParametersNot disclosed

Pricing

The price a lab's own page showed on the day that page was captured. That is what a snapshot can prove; it is not necessarily the launch price, and prices are often cut later. Citing the live pricing page instead would give a number with no date at all.

Input $1.75 per million tokens observed February 10, 2026 · archived snapshot (2026-02-10)
Output $14 per million tokens observed February 10, 2026 · archived snapshot (2026-02-10)

Current information, elsewhere

This record is a historical one: every figure above is traced to a dated primary source. For what is true today — live pricing, current rankings, availability — these are better maintained than anything here could be.

Sources

Record status: verified · confidence 90/100 · 1 of 2 primary

Every value this record asserts — date (2025-12-11) and context window (400,000) — was found in an archived primary source, checked 2026-08-10. Parameter count is not recorded, so nothing is claimed about it. Modalities taken from the documentation's own declaration: "Input Text, image Output Text". Capabilities evidenced from the primary sources: reasoning: “Reasoning token support”.

Primary means published by the organisation that made the model. Verified records require at least one.

GPT family

  1. GPT-4 March 14, 2023
  2. GPT-4o May 13, 2024
  3. GPT-4.5 February 27, 2025
  4. GPT-5 August 7, 2025
  5. GPT-5.1 November 12, 2025
  6. GPT-5.2 December 11, 2025
  7. GPT-5.3-Codex February 5, 2026
  8. GPT-5.4 March 5, 2026
  9. GPT-5.5 April 23, 2026
  10. GPT-5.6 Sol July 9, 2026
  11. GPT-5.6 Luna July 9, 2026
  12. GPT-5.6 Terra July 9, 2026
  13. GPT-5.6-Cyber August 10, 2026
  14. GPT-6 Astra September 3, 2026
  15. GPT-Rosalind September 8, 2026
  16. GPT-6 Sol September 22, 2026
  17. GPT-6 Luna September 22, 2026
  18. GPT-6.1 Sol September 29, 2026

What changed from GPT-5.1

Compared with the previous release in this series. A field appears only when both records state a value — where one does not, it is listed as uncomparable rather than dropped, because a gap in our research is not a finding about the model.

Not comparable: Parameters (not disclosed for both releases)

Compare them side by side →

Browse models

Compare GPT-5.2 with another model →
See GPT-5.2 on the interactive timeline →