Deepseek V4 Flash

Hy3 preview’s rise in OpenRouter rankings appears driven by cheap input pricing and caching dynamics, but deeper cost comparisons and regulatory/licensing considerations raise questions about its sustainability and risk.

A Metal-only local inference engine (ds4.c) for DeepSeek V4 Flash with 1M-token context, 2-bit quantization, and disk-backed KV cache, offering OpenAI/Anthropic-compatible local APIs but with alpha-quality code and very high RAM requirements on macOS.