diff --git a/.github/workflows/basic.yml b/.github/workflows/basic.yml
index dcdbd047d..8373f298c 100644
--- a/.github/workflows/basic.yml
+++ b/.github/workflows/basic.yml
@@ -63,19 +63,6 @@ jobs:
             channel-priority: flexible
             auto-update-conda: true
 
-        - uses: actions/cache/restore@v4
-          name: Restore cached dependencies
-          id: cache
-          if: matrix.os == 'ubuntu-latest'
-          with:
-            path: |
-              /home/runner/.local
-              /usr/share/miniconda3/envs/condaenv
-              /usr/share/miniconda3/bin
-              /usr/share/miniconda3/lib
-              /usr/share/miniconda3/include
-            key: libe-${{ github.ref_name }}-${{ matrix.python-version }}-${{ matrix.comms-type }}-${{ matrix.pydantic-version }}-basic
-
         - name: Force-update certifi
           run: |
             python --version
@@ -115,18 +102,6 @@ jobs:
             pip install mpmath matplotlib
             conda install numpy nlopt scipy
 
-        - uses: actions/cache/save@v4
-          name: Save dependencies to cache
-          if: matrix.os == 'ubuntu-latest'
-          with:
-            path: |
-              /home/runner/.local
-              /usr/share/miniconda3/envs/condaenv
-              /usr/share/miniconda3/bin
-              /usr/share/miniconda3/lib
-              /usr/share/miniconda3/include
-            key: libe-${{ github.ref_name }}-${{ matrix.python-version }}-${{ matrix.comms-type }}
-
         - name: Install libEnsemble, flake8
           run: |
             pip install pydantic==${{ matrix.pydantic-version }}
diff --git a/.github/workflows/extra.yml b/.github/workflows/extra.yml
index ff3516ce9..3b16f9e3f 100644
--- a/.github/workflows/extra.yml
+++ b/.github/workflows/extra.yml
@@ -67,19 +67,6 @@ jobs:
             channel-priority: flexible
             auto-update-conda: true
 
-        - uses: actions/cache/restore@v4
-          name: Restore cached dependencies
-          id: cache
-          if: matrix.os == 'ubuntu-latest'
-          with:
-            path: |
-              /home/runner/.local
-              /usr/share/miniconda3/envs/condaenv
-              /usr/share/miniconda3/bin
-              /usr/share/miniconda3/lib
-              /usr/share/miniconda3/include
-            key: libe-${{ github.ref_name }}-${{ matrix.python-version }}-${{ matrix.comms-type }}-${{ matrix.pydantic-version }}-extra
-
         - name: Force-update certifi
           run: |
             python --version
@@ -96,31 +83,20 @@ jobs:
             conda install clang_osx-64
 
         - name: Install mpi4py and MPI from conda
-          if: (matrix.python-version != '3.10' && matrix.os == 'ubuntu-latest') || matrix.os == 'macos-latest'
           run: |
             conda install mpi4py ${{ matrix.mpi-version }}
 
-        - name: Install mpi4py from pip, MPI from conda
-          if: matrix.python-version == '3.10' && matrix.os == 'ubuntu-latest'
-          run: |
-            conda install ${{ matrix.mpi-version }}
-            pip install mpi4py
-
         - name: Install generator dependencies
           run: |
-            python -m pip install --upgrade pip
             conda env update --file install/gen_deps_environment.yml
 
-        #- name: Install ax-platform
-        #  run: pip install "ax-platform<=0.4.0"
-
         - name: Install gpcam
           if: matrix.python-version != '3.12'
           run: |
             pip install gpcam
 
         - name: Install surmise
-          if: matrix.os != 'macos-latest'
+          if: matrix.os == 'ubuntu-latest'
           run: |
             pip install --upgrade git+https://github.com/bandframework/surmise.git
 
@@ -154,18 +130,6 @@ jobs:
             pip install -e .
             popd
 
-        - uses: actions/cache/save@v4
-          name: Save dependencies to cache
-          if: matrix.os == 'ubuntu-latest'
-          with:
-            path: |
-              /home/runner/.local
-              /usr/share/miniconda3/envs/condaenv
-              /usr/share/miniconda3/bin
-              /usr/share/miniconda3/lib
-              /usr/share/miniconda3/include
-            key: libe-${{ github.ref_name }}-${{ matrix.python-version }}-${{ matrix.comms-type }}
-
         - name: Install libEnsemble, flake8, lock environment
           run: |
             pip install pydantic==${{ matrix.pydantic-version }}
@@ -178,7 +142,7 @@ jobs:
             # rm ./libensemble/tests/regression_tests/test_gpCAM.py
             rm ./libensemble/tests/regression_tests/test_persistent_gp.py
 
-        - name: Remove test for persistent Tasmanian on Python 3.12
+        - name: Remove test for persistent Tasmanian, Surmise on Python 3.12
           if: matrix.python-version >= '3.12'
           run: |
             rm ./libensemble/tests/regression_tests/test_persistent_tasmanian.py
@@ -209,16 +173,10 @@ jobs:
           with:
             redis-version: 7
 
-        - name: Run extensive tests, Ubuntu
-          if: matrix.os == 'ubuntu-latest'
+        - name: Run extensive tests
           run: |
            ./libensemble/tests/run-tests.sh -e -z -${{ matrix.comms-type }}
 
-        - name: Run extensive tests, macOS
-          if: matrix.os == 'macos-latest'
-          run: |
-            ./libensemble/tests/run-tests.sh -e -z -${{ matrix.comms-type }}
-
         - name: Merge coverage
           run: |
             mv libensemble/tests/.cov* .