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OSS2026-08-11 · source-backed
h3.c, published August 9 by the Redis creator, targets M3/M5 Max Macs from scratch. Reported: 512×512, 22-frame, 20-step generation at ~16.69s on M5 Max, dropping to ~12.60s with token reduction, 8.02s for a native 256-square preview, 19.32s on the int8 path. Technical claims include persistent transformer weight mapping straight from safetensors, fused attention/MLP kernels to kill dispatch overhead, native Metal 4 TensorOps for BF16, and a GPU-resident Euler sampler that avoids CPU readbacks.
Each link below shares sources, entities, or timing with this story.
M5 Max benchmarked against M3 Max / Shared entities / Same source domain / Earlier coverage
Linked by a graph relationship (M5 Max benchmarked against M3 Max); both cover August, CPU, GPU, Metal; reported by the same outlet (github.com).
Shared entities / Same source domain / Earlier coverage / Downstream implication
Both cover Apple Silicon, CPU, GPU; reported by the same outlet (github.com); earlier Apple Silicon coverage from 2026-04-10.
Redis built by antirez / Shared entities / Same source domain / Earlier coverage
Linked by a graph relationship (Redis built by antirez); both cover Metal, Redis; reported by the same outlet (github.com).
Swift uses Metal / Shared entities / Same source domain / Earlier coverage
Linked by a graph relationship (Swift uses Metal); both cover CPU, GPU; reported by the same outlet (github.com).
Shopify deprecates Redis / Shared entities / Earlier coverage / Tension
Linked by a graph relationship (Shopify deprecates Redis); both cover CPU, Redis; earlier CPU coverage from 2026-08-09.
Linked by a graph relationship (Shopify deprecates Redis); both cover August, Reported; earlier August coverage from 2026-08-05.
Shared entities / Shared topic / Earlier coverage
Both cover August, BF16, CPU; overlapping topics (august, bf16); earlier August coverage from 2026-08-04.
Swift uses Metal / Shared entity: Apple Silicon / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Swift uses Metal); both cover Apple Silicon; reported by the same outlet (github.com).