GPT-5.2

Dec 2025
GPT-5.2
Compare in
on
—per task?
$1.75 / $14per 1M in / outcache $0.17
—output speed?
400Kcontext

Rankingat medium effort?

Full ranking →
1GPT-6 Astra96.32Gemini 3.8 Flash95.33Grok 4.694.94Gemini 3.1 Pro Preview94.14Muse Spark 1.394.1
···
63MiMo v2.5 Pro86.665GPT-5.286.465Apodex 1.186.4

Strong at

A
Science#65 of 312Knowledge#69 of 318
B
Tool calling#87 of 242Reasoning#98 of 334Long context#119 of 273Instructions#70 of 245Vision#54 of 124

Alternatives?

ModelScoreCostPer taskWhat changes
CheaperGemini 3.8 Flashhigh+10%-69%*$1.24Sampling parameters are ignored+1BetterGPT-5.6 Lunahigh+3%-91%$0.044OpenKimi K3max+8%+25%$2.00Sampling parameters are fixed+3CheaperGrok 4.6high+10%-38%$1.48CheaperMuse Spark 1.3xhigh+9%-58%$1.37Only auto tool_choice is supported+5

History

17 versions
406080100Jan 24Jul 24Jan 25Jul 25Jan 26Release dateGPQA Diamond44o4o (2024-05-134o (2024-08-064.1 · Apr5 · Aug5 · Aug5.1 · Nov5.2 · Dec5.4 · Mar5.5
406080100202420252026Release dateGPQA Diamond44o4o (2024-05-134.1 · Apr5 · Aug5.1 · Nov5.2 · Dec5.5

Benchmarks

in Chat & Knowledge
AA Intelligence Index 4.3.2≈26.5#71
AA Omniscience Index0.3#69
AA Omniscience · Accuracy38.3#51
AA Omniscience · Hallucination Rate61.6#110
Humanity's Last Exam26.7#98
GPQA Diamond86.4#65
AA-LCR (long context) 1.170.3#119
IFBench (instructions)65.2#70
CritPt (physics)7.9#70
AIME 2025 · AA archived96.7#2
ARC-AGI-1 · public evaluation80.6#34
ARC-AGI-2 · public evaluation27.6#34
ARC-AGI-1 · semi-private72.7#39
ARC-AGI-2 · semi-private26.7#37
HealthBench Professional length-adjustedlab45.9
MMLU-Pro · official boardlab87.4

FAQ

How much does GPT-5.2 cost?›

$1.75 per 1M input tokens and $14 per 1M output tokens; cached input $0.17 per 1M.

Is GPT-5.2 free to use?›

There is no free API; the cheapest paid price is $1.75 per 1M input tokens.

How good is GPT-5.2, and what is it best at?›

#98 of 334 in Chat & Knowledge, #13 of 19 in Coding, #9 of 16 in Agents & Tool Use, #77 of 195 in Writing & Language, #54 of 124 in Vision & Documents. Strongest at: Science, Knowledge.

Is GPT-5.2 better than Muse Spark 1.2?›

On GPQA Diamond, GPT-5.2 scores 90.3 vs 90.4 — about the same.

How can I use GPT-5.2?›

Through the API of Azure, OpenAI.

What is the context window of GPT-5.2?›

400K tokens, with up to 128K output tokens.

When was GPT-5.2 released? Is there a newer version?›

Released 2025-12-11. It has been superseded by GPT-5.4.

Is GPT-5.2 open source?›

No, GPT-5.2 is a closed model available through an API. The closest open-weights option here is Kimi K3.

Can GPT-5.2 read images?›

It accepts text and images, PDF files as input.

What is GPT-5.2?›

GPT-5.2 is a closed language model from OpenAI, released Dec 2025.

What are the best alternatives to GPT-5.2?›

Gemini 3.8 Flash (cheaper), GPT-5.6 Luna (better), Kimi K3 (open weights).