OpenAI officially releases GPT-5.5, with significant improvements in intelligence and efficiency

According to official news, OpenAI has officially released GPT-5.5. This model has made significant progress in intelligent agent programming, computer usage, and scientific research, achieving an accuracy of 82.7% in the Terminal-Bench 2.0 test. GPT-5.5 has higher reasoning efficiency and consumes fewer tokens while maintaining the same latency as GPT-5.4.

Currently, GPT-5.5 has been pushed to ChatGPT Plus, Pro, and enterprise users, with the API version set to launch soon, priced at $5 per million input tokens and $30 per million output tokens. Additionally, GPT-5.5 Pro, designed for high-difficulty tasks, has also been released simultaneously.