OpenAI launches GPT-5.5 and Pro models on OpenRouter, delivering SOTA performance for long-running tasks in code, data, and tools amid AI model...
Model details
OpenAI launches GPT-5.5 and Pro models on OpenRouter, delivering SOTA performance for long-running tasks in code, data, and tools amid AI model...
OpenAI's new model outperforms GPT-5.4, leading to speculation on GPT-5.5 release; odds for release by June 30, 2026, at 99.9% YES.
OpenAI’s GPT-5.5 adds stronger cybersecurity controls and improved performance, as more capable AI models raise new security risks.
So when it comes to models that the general public can access, GPT-5.5 has retaken the crown for OpenAI, achieving the state-of-the-art across 14 benchmarks.
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Developers already feel this
GPT-5.5 is designed as a highly capable model focused on real-world utility, functioning as an intelligent agent that can understand complex goals and execute tasks across various environments. Its architecture is optimized for practical work, including the ability to operate browsers, manage computer-based workflows, and handle intricate coding or debugging assignments. By integrating these agentic functions, the model serves as a versatile tool for researching online, analyzing data, and generating professional documents or spreadsheets, effectively acting as a foundation for an AI-driven super app.
The model demonstrates significant performance gains, achieving state-of-the-art results across 14 benchmarks, including strong scores on the OSWorld and GDP Val evaluations. Beyond its raw performance, GPT-5.5 incorporates enhanced cybersecurity safeguards to address the risks associated with increasingly capable AI systems. It maintains efficient latency comparable to its predecessor while offering improved token efficiency for specialized tasks. With its ability to manage complex, long-running workflows, the model is positioned to support users in demanding professional environments that require both high-level reasoning and reliable task completion.
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