GPT Prompt Tester v1.0.7 improves the Writing Studio title suggestion flow, including title re-suggestions, custom suggestion counts, and prompt override stability. This update also enhances app security and overall stability through runtime environment, dependency, and internal structure improvements.
GPT Prompt Tester v1.0.4 adds support for GPT-5.5 and gpt-image-2. This update expands the app’s text and image prompt testing workflows, allowing users to compare advanced model responses, refine prompts, and experiment with image generation more effectively in one workspace.
The v1.0.2 update introduces a new panel comparison feature in GPT Playground, making it easier to compare prompts, variables, model options, results, and key metrics in one place. This release also improves Writing Studio quality, refines the Eval PDF flow, and makes OpenAI usage cost calculations more accurate.
The v0.9.9 update focuses on improving core usability and stability.
It introduces a new window close behavior option (Exit or Hide to Tray), prevents duplicate app execution by enforcing a single-instance model, and reorganizes settings into a unified General Settings panel.
Additional improvements include better tray behavior consistency, language reflection fixes, and resolving duplicated Eval results during history restoration.
GPT Prompt Tester v0.8.9 has been officially released after passing Microsoft Store review. This update introduces support for the latest GPT-5.4 model, streaming responses in Playground, new Eval / Improve request settings, and Usage Dashboard tracking for Eval usage. It also adds Microsoft Store subscription support and improves the stability and reliability of the Image Maker feature.
