GPT-5.2 (Instant/Thinking/Pro): 74% on GDPVal, 1.4x cost of GPT 5.1, on 10 Year OpenAI Anniversary

**OpenAI** celebrates its 10 year anniversary with the launch of **GPT-5.2**, featuring significant across-the-board improvements including a rare 40% price increase. GPT-5.2 shows strong performance gains in scientific reasoning, knowledge work, and economic value tasks, achieving over **70.9%** human expert parity on **GDPval** tasks and reaching **90.5%** on ARC-AGI-1 with a large efficiency gain. Despite some mixed results in coding benchmarks and vision capabilities, GPT-5.2 is well received as a major update with extended context and tiered reasoning controls. Pricing is set at **$1.75/M input** and **$14/M output** tokens with a 90% cache discount. The update is live in ChatGPT and API, marking a significant milestone for OpenAI's LLM development.