| 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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| 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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