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Model Release

OpenAI Launches GPT-5.6 Model Family Following Security Review

GPT-5.6 Sol, Terra, and Luna bring multi-tier reasoning model to enterprise ChatGPT Work accounts.

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Referenced Coverage & Sources

OpenAI launches GPT-5.6 model family following security review
OpenAI BlogJul 9, 2026
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Technical & Market Glossary Definitions
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AI ConceptNeural Architectures

GPT

GPT (Generative Pre-trained Transformer) is a decoder-only autoregressive transformer architecture developed by OpenAI. It was pre-trained on massive text datasets to predict next words, pioneering the modern conversational AI era.

AI ConceptFoundational AI

Reasoning Model

A Reasoning Model (or o1-style model) is an artificial intelligence model trained to perform reinforcement learning and execute chain-of-thought steps internally before returning an answer. This allows the model to deliberate, correct mistakes, and evaluate strategies.

AI ConceptGenerative AI

ChatGPT

ChatGPT is a conversational artificial intelligence chatbot developed by OpenAI, built on their family of GPT Large Language Models, which pioneered the generative AI consumer wave by providing fluid, human-like dialogue.

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OpenAI Launches GPT-5.6 Model Family Following Security Review | AI Timeline | SPIDITS AI