KosmicKrisp Now Conformant To Vulkan 1.4, Improving Performance Against Apple's Metal
KosmicKrisp, a Vulkan-on-Metal driver developed by LunarG, has achieved Vulkan 1.4 conformance and is considered production-ready for modern macOS systems. The project continues to improve its performance, narrowing the gap with Apple's native Metal API and the older MoltenVK implementation. Future development efforts will focus on enhancing performance, fixing bugs, and adding more Vulkan features, though iOS support remains distant due to resource constraints.
- ▪KosmicKrisp has passed the Vulkan 1.4 CTS and is deemed a conformant implementation by The Khronos Group.
- ▪LunarG considers the driver production-ready for modern macOS and Apple Silicon hardware.
- ▪Performance benchmarks show KosmicKrisp is competitive with MoltenVK and close to native Metal speeds.
- ▪The project currently focuses exclusively on macOS, with iOS support requiring significantly more resources.
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/KosmicKrisp-Vulkan-1.4-2026 |
| Publication time | Sat, 03 Oct 2026 07:24:07 -0400 |
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KosmicKrisp Now Conformant To Vulkan 1.4, Improving Performance Against Apple's Metal Written by Michael Larabel in Vulkan on 3 October 2026 at 07:24 AM EDT. Add A Comment KosmicKrisp is the effort led by LunarG for developing a modern Vulkan-on-Metal driver for Apple systems within Mesa. This modern alternative to MoltenVK continues progressing well and now enjoys Vulkan 1.4 conformance and its performance continues inching closer to that of the native Apple Metal API. Aitor Camacho Larrondo of LunarG presented at XDC2026 Toronto this week around KosmicKrisp and its latest developments, which most notably is KosmicKrisp passing the Vulkan 1.4 CTS and being deemed a conformant implementation by The Khronos Group.
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