GPT Prompt Tester v1.0.0 Update — Data Backup/Restore and New GPT-5.4 Models
GPT Prompt Tester v1.0.0 introduces data backup and restore for Pro users, making it easier to protect prompt history, Eval results, Writing assets, Image Maker data, and other work records. This update also adds GPT-5.4-mini and GPT-5.4-nano, giving users a faster, more stable, and more cost-efficient environment for prompt testing and experimentation.