OpenAI has launched GPT-5.5, an advanced AI model designed for complex task management and enhanced productivity.
OpenAI has officially introduced GPT-5.5, a cutting-edge AI model designed to enhance productivity and manage complex tasks more effectively.
GPT-5.5 represents a new class of intelligence aimed at real-world applications, enabling users to assign intricate multi-step tasks with confidence. This model can autonomously plan, apply tools, and verify its outputs, significantly streamlining workflows.
— OpenAI (@OpenAI) April 23, 2026
The new neural network excels in understanding user intentions and efficiently completing tasks such as coding, data analysis, document creation, and software management. It is particularly noted for its capabilities in agent programming, intellectual work, and scientific research where logical reasoning and task execution are paramount.
OpenAI emphasized that GPT-5.5 offers a significant leap in intelligence while maintaining comparable speed to its predecessor, GPT-5.4, despite being a larger model.
GPT-5.5 is available through ChatGPT and Codex for Plus, Pro, Business, and Enterprise plan users, with a dedicated GPT-5.5 Pro version for select plans. API access will be offered at a cost of $5 million for 1 million input tokens and $30 million for output tokens, with a context window of 1 million tokens.
This model is reported to be more expensive than GPT-5.4 due to its enhanced token efficiency and performance. It uses fewer tokens in Codex and requires fewer retries for task completion, achieving a leading intelligence level at a reduced cost compared to competitors.
In various benchmarks, GPT-5.5 has demonstrated superior performance over its predecessor, achieving high accuracy rates in programming tasks and logical reasoning. In Terminal-Bench 2.0, it recorded an accuracy of 82.7%, while also outperforming GPT-5.4 in other assessments such as SWE-Bench Pro and Expert-SWE.
OpenAI's blog highlighted the model's strengths in programming, noting its proficiency in engineering tasks across the development lifecycle.
GPT-5.5 is also effective in managing information workflows, capable of transforming raw data into actionable insights. It has garnered regular use from over 85% of OpenAI employees in various departments, including finance, marketing, and data analytics.
In scientific research, GPT-5.5 shows improvements over its predecessor in platforms like GeneBench and BixBench, allowing for comprehensive exploration of ideas and data analysis.
With the introduction of workspace agents in April, teams can leverage GPT-5.5 to collaboratively tackle complex tasks and processes, marking a significant advancement in AI-assisted work.
