OpenAI upgrades ChatGPT and Codex with GPT-5.5: ‘a new class of intelligence for real work’

OpenAI has released GPT-5.5, positioning it as enterprise-grade AI for complex, multi-step work with significant improvements in agentic coding, computer use, and knowledge work—though API costs have doubled compared to GPT-5.4. CIOs must evaluate the ROI trade-off between enhanced capabilities (faster problem-solving, better token efficiency in many cases) and the 2x price increase, while planning adoption strategies across ChatGPT Plus, Pro, Business, and Enterprise tiers. This release signals that AI is moving from conversational assistant to autonomous work execution, requiring IT organizations to reassess AI governance, security protocols, and integration roadmaps.