Skip to contentGPT-5.2
LegacyVerified ·
A late-2025 GPT-5 generation model, now legacy, retained for reproducibility and pinned production deployments.
profile normalized against the 47-model field
Context window· 400K of 1.05M38%
Max output· 100K of 272K37%
Output speed· 88 tok/s28%
Affordability· $15.00 / Mtok out92%
Capability breadth· 7 of 1164%
Capability switches · 7 of 11
Reasoning mode
Tool / function use
Streaming
JSON mode
Structured outputs
Prompt caching
Fine-tuning
Web search
Code execution
Vision input
Audio input
Specifications
Every value carries a primary source and a verification date.
Pricing
Input $/Mtok$2.50 / Mtok USD/Mtok
Cached input $/Mtok$0.25 / Mtok USD/Mtok
Output $/Mtok$15.00 / Mtok USD/Mtok
Performance
Output speed88 tok/s tok/s
Time to first token560 ms ms
Capabilities
Input modalitiesText, image
Tool / function usetrue
Structured outputstrue
General
Knowledge cutoffAugust 31, 2025
Benchmarks
Sourced evaluation scores, each verified against its primary source.
GPQA Diamond
GPQA Diamond: 76.3%
SWE-bench Verified
SWE-bench Verified: 65.1%
AIME 2025
AIME 2025: 85.0%