OpenAI introduces new default models for ChatGPT with unlimited text chat

ITmedia AI+ (Japan)·August 6, 2026·1 min read

AI Summary

OpenAI announced a change in ChatGPT's default models, introducing the enhanced 'GPT-5.6 Sol' for paid versions and 'GPT-5.6 Luna' for the free version. The paid model features improved accuracy and response speed, along with a slider to select thinking time, while the free version allows unlimited text chat and includes a 'Think' button to encourage reasoning.

This story was originally published in another language — the summary above is an English translation. Read the full article at the source.

View original at ITmedia AI+ (Japan)

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