Apple open-sources CoreAI (BSD 3-Clause) at WWDC 2026 — a capable alternative to CoreML for on-device inference. Supports Qwen3, Qwen3 MoE, Gemma 3, Mistral, FLUX.2 klein, Whisper, SAM 3. Python export → .aimodel. INT4 quant, dynamic KV cache (macOS). Requires macOS/iOS 27+.