v1.21.0

onyx-dot-app/onyxv1.21.0Jun 10, 2026by themez

AI Summary

A comprehensive client update adding new AI providers, file handling capabilities, and significant UI/UX improvements including better error handling and session performance.

Key Highlights

Added Vercel AI Gateway provider
Added Spotlight provider for faster provider selection
Added file conversation support and improved attachment handling
Added GPT Image 2 support and harmful content reporting
Improved web search reliability

New Features

Vercel AI Gateway provider
Spotlight provider
File conversation support
GPT Image 2 support
Microsoft Translate as a backup service
Improved error display with localized messages
Improved session list performance

Full Release Notes

## v1.21.0 - 2026.06.08

### Downloads
- [Windows](https://chatboxai.app/install?download=win64)
- [macOS Intel](https://chatboxai.app/install?download=darwin-x86_64)
- [macOS Apple Silicon](https://chatboxai.app/install?download=darwin-aarch64)
- [Linux x64](https://chatboxai.app/install?download=linux)
- [Linux ARM64](https://chatboxai.app/install?download=linux-arm64)
- [Android APK](https://download.chatboxai.app/releases/chatbox-1.21.0.apk)

1. Added Vercel AI Gateway provider
2. Added provider Spotlight for faster provider selection
3. Added file conversation support and improved large file and multi-attachment handling
4. Added GPT Image 2 support and harmful content reporting for image generation
5. Added Microsoft Translate as a backup translation service
6. Improved web search reliability for BoCha, Tavily, and mobile Bing search
7. Improved error display with clearer localized messages, request IDs, and retry status
8. Improved session list performance and stability, including bulk delete, ordering, and migration fixes
9. Fixed Electron upgrade regressions around local file paths, database locations, and attachments
10. Fixed duplicate AI requests after network errors
11. Fixed multiple knowledge base, login state, guide, and settings issues
12. Updated Windows app icons