New AI models for August

The model picker now includes:

• Anthropic Sonnet 5 and Opus 5
• DeepSeek V4 Flash
• Google Gemini 3.5 Flash Lite and Gemini 3.6 Flash
• Moonshot AI Kimi K3
• OpenAI GPT 5.6 Luna, Terra, and Sol
• Qwen 3.7 Flash
• xAI Grok 4.5

Available models can now be selected on every plan. Older models that have been retired are no longer offered for new selections, while existing configurations continue to work.