OpenAI's GPT-5.6 improves efficiency across all layers, resulting in enhanced performance per dollar for enterprise workloads. Customers benefit from reduced prices for GPT-5.6 Luna and Terra, along with faster performance from GPT-5.6 Sol in the API.

Four AI models, GPT-5.6, Claude, Gemini, and Grok, were tasked with drawing the Mona Lisa on a blank canvas using colored pencils. Each model executed strokes, blended colors, erased, and evaluated its work to refine the drawing.

Fable 5 outperformed GPT-5.6 Sol on an NP-hard optimization problem. The use of the /goal mode did not significantly enhance performance for either model.

Claude Fable 5 and GPT-5.6 Sol autonomously directed music videos using a set budget, web search capabilities, and local ffmpeg tools. Each model researched video models, generated clips, edited footage, and assembled the final music video independently.

Ploy's AI agent now operates on GPT-5.6 Sol, the latest model released by OpenAI. This transition follows extensive testing against Claude Opus, leading to GPT-5.6 Sol becoming the default model for all Ploy workspaces, enhancing its capabilities in building and editing marketing websites.

The GPT-5.6 family of models has been launched for general availability, featuring Sol as the flagship model, Terra for balanced everyday work, and Luna as the cost-efficient option. GPT-5.6 Sol achieves state-of-the-art results in coding, knowledge work, cybersecurity, and science, outperforming previous models with fewer tokens and lower estimated costs.

GPT-5.6 Sol, along with Terra and Luna, will launch publicly this Thursday. We’re expanding preview access globally now. https://t.co/Uk5HcfSc2e

The GPT-5.6 series includes three models: Sol, Terra, and Luna. Sol is the flagship model, Terra offers competitive performance at half the cost of GPT-5.5, and Luna provides strong capabilities at the lowest price, while all models incorporate enhanced safety measures against higher-risk activities and misuse.