GCT v4.2.0 – Custom Prompt Profiles & New Model Support

Release Date: 8 August 2026

Version 4.2.0 introduces dedicated multi-file profile management for Custom Translation and OCR Prompts, alongside support for Google's newest Gemini models and DeepInfra's high-speed Priority service tier.

What's New in Version 4.2.0

1. 📁 Custom Prompt Profiles (.ctp / .cop)

• Multi-Game Prompt Profiles: You can now create, save, and switch between multiple custom prompt profiles tailored to different games and scenarios.
• Three-Button Workflow (Load / Save / Save As): Streamlined controls for managing .ctp (Custom Translation Prompt) and .cop (Custom OCR Prompt) files directly in the application folder with UTF-8 BOM encoding.
• Custom GCT Modal Dialogs: Lightweight, High-DPI-scaled dialogs for loading and saving profiles with file extension auto-normalization, in-dialog deletion (Delete button / Del key / context menu), overwrite safeguards, and live active filename indicators next to the Enabled checkbox.

2. ⚡ New Gemini Models & DeepInfra Priority Tier

• Gemini 3.6 Flash: Integrated Google's latest frontier-class model for translation, offering advanced language reasoning and context awareness.
• Gemini 3.5 Flash-Lite: Added Google's fastest, lowest-cost Gemini 3.5 model for high-throughput translation and OCR (with Low and Medium media resolution profiles).
• Gemma 4 (DeepInfra) Priority Tier: Added dedicated Priority service tier model option (service_tier: "priority"), ensuring ultra-low response latency and zero queueing during peak hours.

📥 Downloads

• 🪄 Portable Version: GameChangingTranslator_v4.2.0.exe
• 📦 Size: ~50 MB
• Requirements: Windows 10/11 (64-bit), Internet connection, and an API key from Google or DeepInfra.

📖 Resources

• 📚 User Manual: English
• 🛠️ Source Code: GitHub Repository

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Game-Changing Translator v4.2.0 makes prompt engineering across multiple games effortless while giving you access to the latest frontier AI translation and OCR engines.