Maintainers

This page maps subsystems to the people most likely to review related PRs. Data sources:

• The CODEOWNERS file in the repo root (official ownership).
• git log on origin/master for recent / frequent contributors.

CODEOWNERS uses GitHub teams under ggml-org/; the parenthetical members below are those listed at the top of the CODEOWNERS file.

libllama core (src/)

Subsystem	Owners (CODEOWNERS)	Recent / frequent contributors
src/ (general)	@ggerganov	ggerganov
src/llama-adapter.*	@CISC	CISC
src/llama-arch.*	@CISC	CISC
src/llama-chat.*	@ngxson	ngxson, CISC
src/llama-graph.*	@CISC	CISC
src/llama-model.*	@CISC	CISC
src/llama-vocab.*	@CISC	CISC
src/models/ (per-architecture builders)	@CISC	CISC, CISC contributors

common (common/)

Subsystem	Owners (CODEOWNERS)
common/ (general)	@ggml-org/llama-common (ggerganov, aldehir, angt, danbev, ngxson, pwilkin)
common/fit.*	@JohannesGaessler
common/jinja/	@CISC
common/ngram-map.*	@srogmann

ggml (ggml/)

Subsystem	Owners (CODEOWNERS)
ggml/cmake/, ggml/include/, ggml/src/ggml-common.h, ggml/src/ggml-impl.h, ggml/src/ggml.c, ggml/src/ggml.cpp, ggml/src/ggml-quants.*, ggml/src/ggml-threading.*	@ggerganov
ggml/src/ggml.cpp, gguf.cpp	@ggerganov, @JohannesGaessler, @Green-Sky (gguf.cpp)
ggml/src/ggml-cpu/	@ggerganov
ggml/src/ggml-cpu/spacemit/	@alex-spacemit
ggml/src/ggml-backend-meta.cpp, ggml-opt.cpp	@JohannesGaessler
ggml/src/ggml-cuda/	@ggml-org/ggml-cuda (JohannesGaessler, am17an, IMbackK, ORippler)
ggml/src/ggml-cuda/vendors/hip.h, fattn-wmma*	@IMbackK
ggml/src/ggml-hip/	@IMbackK
ggml/src/ggml-metal/	@ggml-org/ggml-metal (ggerganov)
ggml/src/ggml-vulkan/	@ggml-org/ggml-vulkan (0cc4m, jeffbolznv)
ggml/src/ggml-sycl/	@ggml-org/ggml-sycl (arthw)
ggml/src/ggml-opencl/	@ggml-org/ggml-opencl (lhez, max-krasnyansky)
ggml/src/ggml-hexagon/	@ggml-org/ggml-hexagon (lhez, max-krasnyansky)
ggml/src/ggml-cann/	@ggml-org/ggml-cann (hipudding)
ggml/src/ggml-rpc/	@ggml-org/ggml-rpc (rgerganov)
ggml/src/ggml-webgpu/	@ggml-org/ggml-webgpu (reeselevine)
ggml/src/ggml-zdnn/	@ggml-org/ggml-zdnn (taronaeo, Andreas-Krebbel, AlekseiNikiforovIBM)
ggml/src/ggml-openvino/	@cavusmustafa @wine99
ggml/src/ggml-virtgpu/	@kpouget

Tools (tools/)

Tool	Owners (CODEOWNERS)
tools/cli/	@ngxson
tools/server/*	@ggml-org/llama-server (ggerganov, ngxson, allozaur, angt, ServeurpersoCom)
tools/server/tests/	@ggml-org/llama-server
tools/server/webui/	@ggml-org/llama-webui (allozaur)
tools/mtmd/	@ggml-org/llama-mtmd (ngxson)
tools/quantize/, tools/tokenize/, tools/tts/, tools/perplexity/, tools/completion/, tools/batched-bench/	@ggerganov
tools/parser/	@pwilkin
tools/rpc/	@ggml-org/ggml-rpc

Python conversion (convert_*.py, gguf-py/, requirements*.txt)

Path	Owners (CODEOWNERS)
convert_*.py	@CISC
gguf-py/	@CISC
requirements*.txt	@CISC

Build, CI, and project files

Path	Owners
cmake/, ci/, /scripts/sync*, /scripts/gen*, /scripts/get*	@ggerganov
.github/actions/, .github/workflows/	@ggml-org/ci (CISC, danbev, ggerganov, netrunnereve, ngxson, taronaeo)
/.devops/*.Dockerfile	@ngxson
/build-xcframework.sh	@danbev
AUTHORS, LICENSE, README.md, SECURITY.md, CONTRIBUTING.md, CMakeLists.txt, root Makefile	@ggerganov
media/, vendor/	@ggerganov

Examples

Path	Owners
examples/diffusion/	@am17an
examples/lookup/	@JohannesGaessler
examples/debug/	@danbev, @pwilkin
examples/model-conversion/	@danbev
examples/llama.android/	@ggerganov, @hanyin-arm, @naco-siren
Most other examples/*	@ggerganov

Top all-time committers (volume, not authority)

For context only — these are commit-count signals from git log %an, not authority:

Author	Commits
Georgi Gerganov	1731
Johannes Gäßler	370
Xuan-Son Nguyen	302
Jeff Bolz	270
Sigbjørn Skjæret (CISC)	266
Daniel Bevenius	253
slaren	214
Diego Devesa	141
Xuan Son Nguyen (alt name)	129
Adrien Gallouët (angt)	115

For ownership of a specific path that isn't in the table above, run git log -- <path> and cat CODEOWNERS | grep <path> — those two answers, combined, are the most reliable signal.