Open-Source Models & Communities — September 27, 2026

Findings

1. [1] 2026-09-27 b11222

   common : avoid side effects around params parsing (#29537) register –rpc unconditionally and call llama_supports_rpc() only from its handler print server "initialization …" log after args are parsed Assisted-by: pi:llama.cpp/MiMo-V2.6-Flash-RL Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50580981 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x…

2. [2] 2026-09-27 b11221

   common : make string_split throw on invalid values (#29518) Signed-off-by: Adrien Gallouët angt@huggingface.co Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50573055 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu x64 (CUDA 12) – CUDA 12.8 libraries Ubuntu x64…

3. [3] 2026-09-27 b11218

   jinja : add support for dict builtin (#29477) add support for dict builtin add tests Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50563209 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu x64 (CUDA 12) – CUDA 12.8 libraries…

4. [4] 2026-09-27 b11217

   opencl: refine bin kernel loading condition (#29503) Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50560500 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu x64 (CUDA 12) – CUDA 12.8 libraries Ubuntu x64 (CUDA 13) – CUDA 13.4 libraries…

5. [5] 2026-09-27 b11216

   sycl: FWHT kernels for block widths above 512 (#29243) The SYCL FWHT covers 64 to 512 via the standard butterfly network, plus 384/640/768/1280 via the Kronecker/Paley construction added separately in Hadamard hint can produce (1024, 2048, 4096, 8192); those still fall through to the default case and run as a dense GEMM against the materialized rotation tensor, correct but O(n^2)…

6. [6] 2026-09-27 b11215

   CUDA: tune fp16 tile FlashAttention configs for head sizes 40-112 (#26289) Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50554486 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu x64 (CUDA 12) – CUDA 12.8 libraries Ubuntu x64 (CUDA 13)…

7. [7] 2026-09-27 b11214

   HIP: Enable fattn-mma kernel on cdna for dkq > 256 for large batch sizes (#28907) HIP: Enable fattn-mma kernel on cdna for dkq > 256 for large batch sizes CI: hip-quality-check: ignore spills for very large mfma mma kernels Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50549501 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework…

8. [8] 2026-09-27 b11213

   vulkan: fix argsort kernel selection for Adreno (#29469) Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50544436 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu x64 (CUDA 12) – CUDA 12.8 libraries Ubuntu x64 (CUDA 13) – CUDA 13.4…

9. [9] 2026-09-27 b11212

   common : throw instead of abort on grammar without llguidance (#29516) Signed-off-by: Adrien Gallouët angt@huggingface.co Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50541746 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu x64 (CUDA 12) – CUDA 12.8 libraries…

10. [10] 2026-09-27 b11211

    RPC: use RDMA completion channel to not spin (#29440) RPC: use RDMA completion queue to not spin add TODO for apple RDMA Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/50534798 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu…

Sources

1. [1] b11222
2. [2] b11221
3. [3] b11218
4. [4] b11217
5. [5] b11216
6. [6] b11215
7. [7] b11214
8. [8] b11213
9. [9] b11212
10. [10] b11211