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llmwaves

GPT-5.2

OpenAI · released Dec 10, 2025

ProprietaryReasoningTool useStructured outputVision

GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1. It uses adaptive reasoning to allocate computation dynamically, responding quickly...

Specification

Context window
400K
Max output
128K
Knowledge cutoff
Not stated
Parameters
Undisclosed
Licence
Proprietary
Serving providers
2
Moderated
Yes
Uptime
100.0%

Intelligence

43.3

92th percentile

Coding

Coding Index

Agentic

Agentic Index

Output speed

83 t/s

Median across providers

Latency

1.5s

Time to first token

Cost per task

$1.21

Estimated

Benchmarks

Where the score comes from

The Intelligence Index is a composite. These are the underlying evaluations this model was actually measured on.

Evaluation scores

Percentage correct · higher is better

  • AIME 2025
    99.0%
  • GPQA Diamond
    90.3%
  • LiveCodeBench
    88.9%
  • MMLU-Pro
    87.4%
  • τ²-bench (Telecom)
    84.8%
  • AA-LCR (long context)
    79.3%
  • IFBench
    75.4%
  • SciCode
    52.1%
  • Terminal-Bench Hard
    47.0%
  • Humanity's Last Exam
    37.7%

An evaluation missing from this list was not run for this model — it is not a zero.

View as table
EvaluationScore
AIME 202599.0%
GPQA Diamond90.3%
LiveCodeBench88.9%
MMLU-Pro87.4%
τ²-bench (Telecom)84.8%
AA-LCR (long context)79.3%
IFBench75.4%
SciCode52.1%
Terminal-Bench Hard47.0%
Humanity's Last Exam37.7%

Against its peers

Intelligence Index · this model highlighted, nearest peers in grey

Peers are the models sitting closest on the Intelligence Index — the set you would realistically choose between.

View as table
ModelIntelligence
V4 Pro45.3
Kimi K2.645.1
GPT-5.243.3
Kimi K2.7 Code43.0
MiMo-V2.5-Pro42.9
Inkling42.3
Hy342.2
Nex-N2-Pro41.7

Percentile among all indexed models

Intelligence92th
Mathematics100th
Terminal work94th

Pricing

What it costs to run

List prices per million tokens, plus what one representative task works out to.

List price

Input / 1M tokens
$1.75
Output / 1M tokens
$14
Cached input / 1M
$0.175
Blended 3:1
$4.81

One task, estimated

$1.21

Input tokens
50,000
Output tokens
80,000
Profile
Reasoning

Estimated from list pricing: 50K input tokens plus 80K output tokens for reasoning models (25K for non-reasoning).

Serving providers

Speed and latency figures are medians across these providers, so a widely-served model reports a blend rather than any single endpoint.