diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 4cfc5c4867..0000000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,86 +0,0 @@
-version: 2.1
-
-executors:
-  linux-x86_64-cpu:
-    docker:
-      - image: continuumio/miniconda3
-    resource_class: large
-
-jobs:
-  build_cmake:
-    parameters:
-      exec:
-        type: executor
-      opt_level:
-        type: string
-        default: generic
-    executor: << parameters.exec >>
-    environment:
-      OMP_NUM_THREADS: 10
-      MKL_THREADING_LAYER: GNU
-    steps:
-      - checkout
-      - run:
-          name: Install conda
-          command: |
-            if [ -n "${CONDA_ARCH}" ]
-            then
-              curl https://repo.anaconda.com/miniconda/Miniconda3-latest-${CONDA_ARCH}.sh --output miniconda.sh
-              bash miniconda.sh -b -p $HOME/miniconda
-              ~/miniconda/bin/conda init
-            fi
-      - run:
-          name: Set up environment
-          command: |
-            conda config --set solver libmamba
-            conda update -y -q conda
-      - run:
-          name: Install env using main channel
-          command: |
-            conda install -y -q python=3.11 cmake make swig mkl=2023 mkl-devel=2023 numpy scipy pytest gxx_linux-64 sysroot_linux-64
-      - run:
-          name: Build all targets
-          no_output_timeout: 30m
-          command: |
-            eval "$(conda shell.bash hook)"
-            conda activate
-            cmake -B build \
-                  -DBUILD_TESTING=ON \
-                  -DBUILD_SHARED_LIBS=ON \
-                  -DFAISS_ENABLE_GPU=OFF \
-                  -DFAISS_ENABLE_RAFT=OFF \
-                  -DFAISS_OPT_LEVEL=<< parameters.opt_level >> \
-                  -DFAISS_ENABLE_C_API=ON \
-                  -DPYTHON_EXECUTABLE=$(which python) \
-                  -DCMAKE_BUILD_TYPE=Release \
-                  -DBLA_VENDOR=Intel10_64_dyn \
-                  -DCMAKE_CUDA_FLAGS="-gencode arch=compute_75,code=sm_75" \
-                  .
-            make -k -C build -j$(nproc)
-      - run:
-          name: C++ tests
-          command: |
-            export GTEST_OUTPUT="xml:$(realpath .)/test-results/googletest/"
-            make -C build test
-      - run:
-          name: Install Python extension
-          command: |
-            cd build/faiss/python
-            python setup.py install
-      - run:
-          name: Python tests (CPU only)
-          command: |
-            conda install -y -q pytorch -c pytorch
-            pytest --junitxml=test-results/pytest/results.xml tests/test_*.py
-            pytest --junitxml=test-results/pytest/results-torch.xml tests/torch_*.py
-      - store_test_results:
-          path: test-results
-
-workflows:
-  version: 2
-  build:
-    jobs:
-      - build_cmake:
-          name: Linux x86_64 AVX512 (cmake)
-          exec: linux-x86_64-cpu
-          opt_level: "avx512"