OpenAI launches GPT‑5.2 with Instant, Thinking, and Pro tiers for enterprises

Under the Hood: Instant, Thinking, and Pro OpenAI is segmenting the GPT-5.2 release into three distinct tiers within ChatGPT, a strategy likely designed to balance the massive compute costs of "reasoning" models with user demand for speed: GPT-5.2 Instant: Optimized for speed and daily tasks like writing, translation, and information seeking. GPT-5.2 Thinking: Designed for "complex, structured work" and long-running agents, this model leverages deeper reasoning chains to handle coding, math, and multi-step projects. OpenAI describes this as its "smartest and most trustworthy option," delivering the highest accuracy for difficult questions where quality outweighs latency.

For developers, the models are available immediately in the application programming interface (API) as gpt-5.2 , gpt-5.2-chat-latest (Instant), and gpt-5.2-pro . The Numbers: Beating the Benchmarks The GPT-5.2 release includes leading metrics across most domains -- specifically those that target the "professional knowledge work" gap where competitors have recently gained ground. OpenAI highlighted a new benchmark called GDPval, which measures performance on "well-specified knowledge work tasks" across 44 occupations.

"GPT-5.2 Thinking is now state-of-the-art on that benchmark... and beats or ties top industry professionals on 70.9% of well-specified professional tasks like spreadsheets, presentations, and document creation, according to expert human judges," Simo said. In the critical arena of coding, OpenAI is claiming a decisive lead.

Schwarzer noted that on SWE-bench Pro, a rigorous evaluation of real-world software engineering, GPT-5.2 Thinking sets a new state-of-the-art score of 55.6%.