| Kera |
| Copyright (c) 2026 Kera Labs |
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| Kera's own code is licensed under the Apache License, Version 2.0 (see LICENSE). |
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| Kera includes or is built on the following third-party software. Each keeps |
| its own licence and copyright notices. |
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| llama.cpp and ggml |
| Location: third_party/llama.cpp (git subtree; the pinned release is in docs/UPSTREAM_PATCHES.md) |
| Source: https: |
| Licence: MIT. See third_party/llama.cpp/LICENSE and |
| third_party/llama.cpp/licenses/ for the code it bundles. |
| Copyright (c) 2023-2026 The ggml authors |
| It bundles nlohmann/json (MIT), cpp-httplib (MIT), xxHash (BSD-2-Clause), |
| rotate-bits (MIT) and public-domain code (SHA-1, SHA-256, miniaudio, |
| stb_image, subprocess.h). The Windows download adds LLVM's OpenMP runtime |
| (libomp.dll, Apache-2.0 with LLVM exceptions), and the Windows and Linux |
| downloads are built with the Khronos Vulkan headers (MIT). |
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| The full licence texts of everything built into a download are in its |
| THIRD_PARTY_LICENSES.txt, and `kera licenses` prints them. |
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| stable-diffusion.cpp (the image engine) and its own copy of ggml |
| Location: third_party/stable-diffusion.cpp (a copy at a pinned commit; see docs/UPSTREAM_PATCHES.md), built as |
| separate programs in the downloads' image folder |
| Source: https: |
| Licence: MIT. See third_party/stable-diffusion.cpp/LICENSE and its ggml/LICENSE. |
| Copyright (c) 2023 leejet; Copyright (c) 2023-2026 The ggml authors |
| It bundles Oniguruma (BSD-2-Clause), utf8proc (MIT and the Unicode data licence), darts-clone |
| (BSD-2-Clause), nlohmann/json and cpp-httplib (MIT), miniz (MIT), zip (the Unlicense) and stb (public |
| domain); their texts are in THIRD_PARTY_LICENSES.txt. |
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| acestep.cpp (the music engine) and its own copy of ggml |
| Location: third_party/acestep.cpp (a copy at a pinned commit; see docs/UPSTREAM_PATCHES.md), built as |
| separate programs in the downloads' music folder |
| Source: https: |
| Licence: MIT. See third_party/acestep.cpp/LICENSE and its ggml/LICENSE. |
| Copyright (c) 2023-2026 The acestep.cpp authors; Copyright (c) 2023-2026 The ggml authors |
| It bundles cpp-httplib and yyjson (MIT) and minimp3 (CC0); their texts are in THIRD_PARTY_LICENSES.txt. |
| The music models themselves (ACE-Step 1.5) are not part of Kera: they are downloaded by the user. |
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| trellis.cpp (the 3D engine) and its own copy of ggml |
| Location: third_party/trellis.cpp (a copy at a pinned commit; see docs/UPSTREAM_PATCHES.md), built as |
| separate programs in the downloads' 3d folder |
| Source: https: |
| Licence: MIT. See third_party/trellis.cpp/LICENSE and its thirdparty/ggml/LICENSE. |
| Copyright (c) 2026 Piotr Wilkin; Copyright (c) 2023-2026 The ggml authors |
| Kera changed its CMakeLists.txt (marked "Kera:") and added kera/ggml_backend_dl_shim.cpp. |
| It bundles xatlas, meshoptimizer and Fast-Quadric-Mesh-Simplification (MIT) and stb (public domain); their |
| texts are in THIRD_PARTY_LICENSES.txt. Its optional quad retopology, which needs CGAL (GPL), is not part of |
| Kera. The 3D models themselves (TRELLIS.2, MIT; DINOv3, under Meta's DINOv3 License; |
| BiRefNet, MIT) are not part of Kera: they are downloaded by the user, who accepts their licences. |
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| audio.cpp (the sound-effect engine) and its own copy of ggml |
| Location: third_party/audio.cpp (a copy at a pinned commit, with only its sound-effect models; see |
| docs/UPSTREAM_PATCHES.md), built as a separate program in the downloads' sfx folder |
| Source: https: |
| Licence: Apache-2.0. See third_party/audio.cpp/LICENSE; its ggml copy is MIT (external/ggml/LICENSE). |
| Copyright 2026 ShugoAI LLC; Copyright (c) 2023-2026 The ggml authors |
| Kera changed its CMakeLists.txt (marked "Kera:") and added kera/absent_model.cpp. |
| It bundles SentencePiece and Abseil (Apache-2.0), protobuf-lite (BSD-3-Clause), darts-clone (BSD-2-Clause), |
| esaxx, cJSON, libyaml and utf8proc (MIT); their texts are in THIRD_PARTY_LICENSES.txt. The sound-effect |
| models themselves (MOSS-SoundEffect v2, Apache-2.0; Stable Audio, the Stability AI Community License) are |
| not part of Kera: they are downloaded by the user. |
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| GPT-2 tokenizer (tests only) |
| Location: tests/tiny_models/tokenizer/tokenizer.json, used by the tiny test models |
| Source: https: |
| Licence: MIT (modified MIT, as in https: |
| Copyright (c) 2019 OpenAI |
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| Model weights are never bundled with Kera. Each model has its own licence, |
| which the app shows before it downloads a model. |
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