MetalRT Binary Distribution

March 10, 2026 ยท View on GitHub

Pre-built binary releases of the MetalRT GPU inference engine for macOS on Apple Silicon.

MetalRT is a closed-source, high-performance inference engine optimized for Metal GPU. It powers the GPU acceleration features in RCLI.

Installation

MetalRT is automatically downloaded and installed by RCLI:

rcli setup          # choose MetalRT or Both engines
rcli metalrt install   # install/update MetalRT separately

Or download directly from Releases.

Contents

Each release tarball contains:

FileDescription
libmetalrt.dylibMetalRT shared library (LLM + STT + TTS inference)
default.metallibCompiled Metal GPU kernels
metalrt_c_api.hC API header for consumers
checksums.sha256SHA-256 checksums for verification

Verification

cd ~/Library/RCLI/engines
shasum -a 256 -c checksums.sha256
codesign -v libmetalrt.dylib

Platform Requirements

  • macOS 14+ (Sonoma or later)
  • Apple Silicon (M1, M2, M3, M4)
  • ~10 MB disk space for engine binaries

Version

Current release: v0.2.1 (ABI version 2)

See LATEST_VERSION file for the version string used by rcli metalrt install.

License

Proprietary. See LICENSE for terms.

MetalRT is developed by RunAnywhere, Inc. The binary may be used with RCLI and compatible applications. Redistribution and reverse engineering are prohibited.

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