OpenAI announced its new GPT-5.5 model on April 23, 2026, claiming it excels at coding and multi-step tasks whereas using fewer tokens than previous versions.
OpenAI positions GPT-5.5 as a step toward autonomous computer perform
The company describes GPT-5.5 as its “smartest and most intuitive to use model yet” and says it can handle messy, multi-part tasks by planning, using tools, checking its work, and navigating ambiguity without step-by-step management. OpenAI states the model will roll out starting Thursday to Plus, Pro, Business, and Enterprise ChatGPT tiers, as well as Codex, with GPT-5.5 Pro arriving for Pro, Business, and Enterprise users.
GPT-5.5 enters an intensifying AI coding rivalry with Anthropic
The release follows OpenAI’s GPT-5.4 launch last month and comes amid a heated competition with Anthropic, which recently released Claude Opus 4.7 and announced the non-public Mythos Preview model for cybersecurity. OpenAI previously countered with GPT-5.4-Cyber, a model trained to flag vulnerabilities, as both firms compete to dominate the AI coding and enterprise tools market.
Launch timing coincides with high-profile Musk trial
OpenAI’s announcement arrives days before a federal court trial in Oakland, California, where Elon Musk is set to face executives Sam Altman and Greg Brockman, with proceedings beginning on Monday. The company also emphasizes that GPT-5.5 includes its “strongest set of safeguards to date.”
What tasks does OpenAI say GPT-5.5 performs better?
OpenAI states GPT-5.5 excels at writing and debugging code, conducting online research, creating spreadsheets and documents, and completing these tasks across different tools.
When and to whom is GPT-5.5 being rolled out?
The model rolls out starting Thursday to Plus, Pro, Business, and Enterprise ChatGPT tiers and Codex, with GPT-5.5 Pro coming to Pro, Business, and Enterprise users.
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