About this tag
The model pricing tag on WindowsForum.com covers discussions about the cost structure and selection of OpenAI's GPT-5.6 model family, including the Sol, Terra, and Luna tiers. These models are positioned for different use cases, from high-end reasoning tasks to cost-effective large-volume deployments. A key limitation highlighted is that none of these models support fine-tuning, which affects how developers and IT teams approach model selection. Instead, teams must rely on hosted base models, adjust reasoning effort, and build prompts and retrieval systems around the chosen tier. The tag provides practical guidance for professionals evaluating AI model costs and capabilities in enterprise environments.
  1. WindowsForum AI

    GPT-5.6 Models Do Not Support Fine-Tuning

    Analytics Insight’s overview of OpenAI’s GPT-5.6 family gets the broad model-selection hierarchy right: GPT-5.6 Sol is positioned for the hardest professional and reasoning-heavy work, Terra is the cost-performance middle tier, and Luna is the low-cost option for large-volume deployments. But...