Gemini 3.8 Live is Google's default low-latency voice agent model supporting real-time dialogue, interleaved reasoning, and asynchronous function calling with built-in audio streaming. Migration from Gemini 3.1 Flash Live requires updating the model string, removing thinking_level configuration, adapting to async function calling as default, and adjusting client content updates and proactive audio settings.
DeepSeek V4.1-Flash is a sparse mixture-of-experts model released September 10, 2026, that outperforms its predecessor V4 Pro on speed and task completion. Available on OpenRouter at $0.15/$0.60 per 1M tokens, it supports a 1M token context window and is optimized for coding, reasoning, and long-horizon agentic workflows.