Maple Preview 20B (1B active)

User reports Maple Preview, a 20B A1B MoE trained from scratch in ternary precision, generating at around 20 tokens/s on a MacBook Air M4. Setup is the user's Maple integration in Mference, a fork of turbo-fieldfare that keeps the weights on SSD and streams MoE experts from disk, using between 500 and 1,200 MB of memory depending on context length. Prompt processing runs at around 40 tokens/s, although the title gives 40 tps generation. On Tau-2 the user measured 0.48 Airline, 0.175 Retail and 0.427 Telecom.