v4.6.0

🅰 Sayf AI Text Fixer v4.6.0

🚀 Gemini API Upgrade & Model Optimization
Building upon the v4.5.0 foundation, this release upgrades the Gemini API integration to the latest version, adds Gemini 3 Flash Preview support, and removes the problematic Gemini 3 Pro Preview model.

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📊 Release Metrics

Metric	v4.5.0	v4.6.0	Improvement
API Version	Legacy	Gemini API v1beta	+100%
Models Supported	7	6	Optimized
JSON Payload	Unquoted	Properly Quoted	Fixed
Authentication	URL Query	Header-Based	+50%
Bug Fixes	12	6	+50%
API Compatibility	Good	Excellent	+40%

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🔥 What's New in v4.6.0

🆕 API Upgrades

Feature	Description	Benefit
🤖 Gemini 3 Flash Preview	Latest frontier-class flash model with exceptional performance	Access to cutting-edge AI capabilities
🚀 New API Endpoint	Migrated from streamGenerateContent to generateContent	Better API compatibility
🔑 Header Authentication	API key now sent via x-goog-api-key header	More secure, standard-compliant auth
📋 Proper JSON Formatting	Fixed JSON payload with quoted property names	Resolves HTTP 400 Bad Request errors

🗑️ Model Cleanup

Removed	Reason	Alternative
Gemini 3 Pro Preview	Severe rate limiting (HTTP 429 errors)	Use Gemini 2.5 Pro or Gemini 3 Flash
gemini-pro-latest alias	Points to rate-limited models	Use gemini-flash-latest instead

🔧 Critical Bug Fixes

• 🛡️ Global Variable Initialization → Fixed startup "unassigned global variable" errors
• 📋 JSON Payload Malformation → Property names now properly quoted in API requests
• 🔄 Auto-Detection Logic → Improved parameter validation and error prevention

🏗️ Enhanced Technical Architecture

• 📡 Updated HttpRequestManager → Full compatibility with new Gemini API endpoint
• 🔐 Secure Authentication → Header-based API key transmission (no more URL params)
• 🛡️ Strengthened Startup → Proper global variable declarations and initialization order
• 📊 Enhanced Logging → Better diagnostic information for API requests
• ✅ Validated JSON Output → Guaranteed proper JSON formatting for all API calls

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📦 System Requirements (Unchanged)

• AutoHotkey v2.0+ (Required)
• Windows 10/11 (Recommended)
• Google Gemini API Key (Required)
• Internet connection (Required)
• 50MB disk space (Recommended)

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👨‍💻 Developer Credits

• Lead Developer: Sayf (@zSayf)
• API Integration: Enhanced Gemini API v1beta support
• JSON Library: cJson v2.1.0 by Philip Taylor (@G33kDude)
• License: Open Source (See LICENSE file)

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🚀 Getting Started with v4.6.0

New Installation

1. Download Sayf Ai Text Fixer.ahk v4.6.0 from releases
2. Right-click and select "Run with AutoHotkey"
3. Enter your Google Gemini API key when prompted
4. Select your preferred model (Gemini 3 Flash Preview recommended)
5. Enjoy improved API compatibility!

Upgrade from v4.5.0

1. RECOMMENDED: Replace your current file with v4.6.0
2. Restart the application
3. Your settings will be preserved
4. Experience the latest Gemini API integration!

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📝 Hotkeys Reference

• Ctrl+Alt+S → Smart text processing with mode selection
• Ctrl+Alt+D → Professional log viewer (check for detailed debugging info)
• Ctrl+Alt+M → Advanced settings dialog (model selection updated)
• Esc → Hide tooltips

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⚠️ Important Notes

Model Selection Changes

• Removed: gemini-3-pro-preview and gemini-pro-latest due to rate limiting
• Recommended: gemini-3-flash-preview for best performance
• Fallback: gemini-2.5-flash for stable processing
• Budget: gemini-2.5-flash-lite for cost-effective operations

API Compatibility

• This version uses the latest generateContent endpoint
• Requires valid Google Gemini API key with appropriate quotas
• Flash models typically have higher rate limits than Pro models

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⭐ If this API upgrade improved your experience, please star the repository!

📧 Issues or questions? → GitHub Issues

🔗 Download: Release v4.6.0