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llama.cpp b12398 optimizes Vulkan Flash Attention for AMD
llama.cpp Releaseshigh confidence
Why it matters
- →Optimizes Vulkan Flash Attention for RDNA3/4, improving inference speed on AMD GPUs.
- →Fixes critical stability bugs including NVIDIA hangs and FP16 underflow issues.
- →Expands binary support to include ROCm 10.0 and CUDA 13.5 libraries.
llama.cpp has released build b12398, focusing on Vulkan performance improvements for AMD RDNA3 and RDNA4 GPUs. Key changes include optimized Flash Attention processing, reduced shared memory usage via buffer reuse, and fixes for NVIDIA hangs and sparse FP16 underflow bugs. The release also provides binaries for CUDA 12/13, ROCm 10.0, and various CPU architectures across macOS, Linux, and Windows.
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Earlier coverage that leads up to this article, and what followed. Lines connect each piece to the closest one after it, converging here.
How we got here
- 1llama.cpp b11046 adds OpenCL flash attention
llama.cpp Releases · September 19, 2026 · Same story
- 2vLLM v0.31.0: SM100 defaults and fast restarts
vLLM Releases · October 6, 2026 · Related
- 3llama.cpp fixes Vulkan host memory and AMD perf issues
llama.cpp Releases · October 16, 2026 · Same story
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