OpenAI GPT 5.2 belongs to OpenAI’s GPT-5 family of models and is designed for general-purpose and professional AI workloads. While OpenAI has not publicly disclosed parameter counts or training corpus size, the model is understood to leverage large-scale pretraining, reinforcement learning from human feedback, and advanced instruction tuning. GPT 5.2 is optimized for reasoning, coding assistance, content generation, and multimodal interaction, with strong emphasis on safety, reliability, and alignment. It is deployed within OpenAI’s controlled ecosystem and integrated into products such as ChatGPT and APIs, with continuous updates handled server-side.
Public benchmark tables for GPT 5.2 have not been released. Based on OpenAI disclosures, GPT-5 family models demonstrate strong performance across reasoning, coding, and multimodal benchmarks when compared to earlier GPT-4-class systems. Improvements are typically reported in qualitative capability gains rather than raw benchmark dominance. As with other OpenAI proprietary models, exact scores and evaluation datasets remain undisclosed.
| Benchmark | GPT-5.2 Pro (Base) | GPT-5.2 Thinking | Gemini 3 Pro | Claude Opus 4.5 |
|---|---|---|---|---|
| GPQA Diamond | 93.2 | 92.4 | 91.9 | 88 |
| ARC-AGI-2 | 54.2 | 52.9 | 31.1 | 37.6 |
| AIME 2025 (no tools) | 100 | 100 | 95.0 | 94 |
| Humanity's Last Exam | 36.6 | 34.5 | 37.5 | 26 |
| SWE-bench Verified | 80.0 | 79.1 | 76.2 | 80.9 |
| MMMU-Pro | 81.0 | 72 | ||
| MMLU-Pro | 90.1 | 87.8 |

OpenAI’s GPT-5-series models are developed by a large, cross-functional research and engineering organization within OpenAI. The team includes experts in large-scale machine learning, infrastructure, safety research, alignment, policy, and product engineering. OpenAI emphasizes responsible AI development, incorporating red-teaming, safety evaluations, and iterative deployment practices. The GPT-5 lineage reflects years of cumulative research in transformer architectures, reinforcement learning from human feedback, and scalable distributed training.
OpenAI maintains one of the largest and most active AI communities through ChatGPT users, API developers, and research collaborations. Community support includes extensive documentation, forums, developer examples, and frequent model updates. GPT models receive widespread discussion across research, enterprise, and developer ecosystems.