GPT-5.2
Reliable GPT generation for broad coding, writing, and tool-assisted product work
ECI STANDING#34 of 266
SCORE153.51151.75–155.43 CI
FRONTIER LAGLaunched in the leadNothing released before it had scored higher.
SCORES LIKE THESE MODELSGemini 3.6 FlashGoogle DeepMind · Jul 2026154.33Grok 4.5xAI · Jul 2026153.92Qwen3.7-MaxAlibaba · May 2026153.73
Full Epoch Capabilities Index ranking ↗Gemini 3 ProGoogle DeepMind · Nov 2025153.0
From the lab
Launch announcement · Dec 11, 2025Introducing GPT-5.2RELEASE DATEDec 11, 2025
WEIGHTSClosed weights
CONTEXT WINDOW400K
MAX OUTPUT128K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image
OUTPUTStext
Specifications from Models.dev. Availability and limits may differ by provider. Benchmark scores come from Epoch AI under CC BY 4.0.