diff --git a/.github/workflows/studio-windows-api-smoke.yml b/.github/workflows/studio-windows-api-smoke.yml
index b166112c45..0208b0f5d8 100644
--- a/.github/workflows/studio-windows-api-smoke.yml
+++ b/.github/workflows/studio-windows-api-smoke.yml
@@ -78,30 +78,6 @@ jobs:
           HF_HUB_ENABLE_HF_TRANSFER=1 \
             hf download "$GGUF_REPO" "$GGUF_FILE"
 
-      # Caches around install.ps1 -- restore the heavy artefacts the
-      # installer would otherwise rebuild from scratch every run.
-      # Keys hash every input file that would meaningfully change
-      # the produced artefact, so a stale cache cannot mask a real
-      # dependency change.
-      - name: Cache Studio venv (~/.unsloth/studio/unsloth_studio)
-        id: cache-studio-venv
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/studio/unsloth_studio
-          key: ${{ runner.os }}-studio-venv-v1-${{ hashFiles('pyproject.toml', 'studio/backend/requirements/**', 'install.ps1', 'studio/setup.ps1', 'studio/install_python_stack.py') }}
-      - name: Cache prebuilt llama.cpp (~/.unsloth/llama.cpp)
-        id: cache-llama-prebuilt
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/llama.cpp
-          key: ${{ runner.os }}-llama-cpp-prebuilt-v1-${{ hashFiles('studio/install_llama_prebuilt.py') }}
-      - name: Cache frontend dist (studio/frontend/dist)
-        id: cache-frontend-dist
-        uses: actions/cache@v4
-        with:
-          path: studio/frontend/dist
-          key: ${{ runner.os }}-studio-frontend-dist-v1-${{ hashFiles('studio/frontend/package-lock.json', 'studio/frontend/src/**', 'studio/frontend/index.html', 'studio/frontend/vite.config.*', 'studio/frontend/tsconfig*.json', 'studio/frontend/components.json') }}
-
       - name: Install Studio (--local, --no-torch)
         shell: pwsh
         env:
diff --git a/.github/workflows/studio-windows-inference-smoke.yml b/.github/workflows/studio-windows-inference-smoke.yml
index 454c21c750..32a86d239d 100644
--- a/.github/workflows/studio-windows-inference-smoke.yml
+++ b/.github/workflows/studio-windows-inference-smoke.yml
@@ -88,30 +88,6 @@ jobs:
           HF_HUB_ENABLE_HF_TRANSFER=1 \
             hf download "$GGUF_REPO" "$GGUF_FILE"
 
-      # Caches around install.ps1 -- restore the heavy artefacts the
-      # installer would otherwise rebuild from scratch every run.
-      # Keys hash every input file that would meaningfully change
-      # the produced artefact, so a stale cache cannot mask a real
-      # dependency change.
-      - name: Cache Studio venv (~/.unsloth/studio/unsloth_studio)
-        id: cache-studio-venv
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/studio/unsloth_studio
-          key: ${{ runner.os }}-studio-venv-v1-${{ hashFiles('pyproject.toml', 'studio/backend/requirements/**', 'install.ps1', 'studio/setup.ps1', 'studio/install_python_stack.py') }}
-      - name: Cache prebuilt llama.cpp (~/.unsloth/llama.cpp)
-        id: cache-llama-prebuilt
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/llama.cpp
-          key: ${{ runner.os }}-llama-cpp-prebuilt-v1-${{ hashFiles('studio/install_llama_prebuilt.py') }}
-      - name: Cache frontend dist (studio/frontend/dist)
-        id: cache-frontend-dist
-        uses: actions/cache@v4
-        with:
-          path: studio/frontend/dist
-          key: ${{ runner.os }}-studio-frontend-dist-v1-${{ hashFiles('studio/frontend/package-lock.json', 'studio/frontend/src/**', 'studio/frontend/index.html', 'studio/frontend/vite.config.*', 'studio/frontend/tsconfig*.json', 'studio/frontend/components.json') }}
-
       - name: Install Studio (--local, --no-torch)
         shell: pwsh
         env:
@@ -377,30 +353,6 @@ jobs:
           HF_HUB_ENABLE_HF_TRANSFER=1 \
             hf download "$GGUF_REPO" "$GGUF_FILE"
 
-      # Caches around install.ps1 -- restore the heavy artefacts the
-      # installer would otherwise rebuild from scratch every run.
-      # Keys hash every input file that would meaningfully change
-      # the produced artefact, so a stale cache cannot mask a real
-      # dependency change.
-      - name: Cache Studio venv (~/.unsloth/studio/unsloth_studio)
-        id: cache-studio-venv
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/studio/unsloth_studio
-          key: ${{ runner.os }}-studio-venv-v1-${{ hashFiles('pyproject.toml', 'studio/backend/requirements/**', 'install.ps1', 'studio/setup.ps1', 'studio/install_python_stack.py') }}
-      - name: Cache prebuilt llama.cpp (~/.unsloth/llama.cpp)
-        id: cache-llama-prebuilt
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/llama.cpp
-          key: ${{ runner.os }}-llama-cpp-prebuilt-v1-${{ hashFiles('studio/install_llama_prebuilt.py') }}
-      - name: Cache frontend dist (studio/frontend/dist)
-        id: cache-frontend-dist
-        uses: actions/cache@v4
-        with:
-          path: studio/frontend/dist
-          key: ${{ runner.os }}-studio-frontend-dist-v1-${{ hashFiles('studio/frontend/package-lock.json', 'studio/frontend/src/**', 'studio/frontend/index.html', 'studio/frontend/vite.config.*', 'studio/frontend/tsconfig*.json', 'studio/frontend/components.json') }}
-
       - name: Install Studio (--local, --no-torch)
         shell: pwsh
         env:
@@ -757,30 +709,6 @@ jobs:
           HF_HUB_ENABLE_HF_TRANSFER=1 \
             hf download "$GGUF_REPO" "$MMPROJ_FILE"
 
-      # Caches around install.ps1 -- restore the heavy artefacts the
-      # installer would otherwise rebuild from scratch every run.
-      # Keys hash every input file that would meaningfully change
-      # the produced artefact, so a stale cache cannot mask a real
-      # dependency change.
-      - name: Cache Studio venv (~/.unsloth/studio/unsloth_studio)
-        id: cache-studio-venv
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/studio/unsloth_studio
-          key: ${{ runner.os }}-studio-venv-v1-${{ hashFiles('pyproject.toml', 'studio/backend/requirements/**', 'install.ps1', 'studio/setup.ps1', 'studio/install_python_stack.py') }}
-      - name: Cache prebuilt llama.cpp (~/.unsloth/llama.cpp)
-        id: cache-llama-prebuilt
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/llama.cpp
-          key: ${{ runner.os }}-llama-cpp-prebuilt-v1-${{ hashFiles('studio/install_llama_prebuilt.py') }}
-      - name: Cache frontend dist (studio/frontend/dist)
-        id: cache-frontend-dist
-        uses: actions/cache@v4
-        with:
-          path: studio/frontend/dist
-          key: ${{ runner.os }}-studio-frontend-dist-v1-${{ hashFiles('studio/frontend/package-lock.json', 'studio/frontend/src/**', 'studio/frontend/index.html', 'studio/frontend/vite.config.*', 'studio/frontend/tsconfig*.json', 'studio/frontend/components.json') }}
-
       - name: Install Studio (--local, --no-torch)
         shell: pwsh
         env:
diff --git a/.github/workflows/studio-windows-ui-smoke.yml b/.github/workflows/studio-windows-ui-smoke.yml
index 03255de3b3..2ceb99fa0c 100644
--- a/.github/workflows/studio-windows-ui-smoke.yml
+++ b/.github/workflows/studio-windows-ui-smoke.yml
@@ -87,31 +87,6 @@ jobs:
           HF_HUB_ENABLE_HF_TRANSFER=1 \
             hf download "$GGUF_REPO" "$GGUF_FILE"
 
-      # Caches around install.ps1 -- restore the heavy artefacts the
-      # installer would otherwise rebuild from scratch every run.
-      # Keys hash on every input file that would meaningfully change
-      # the produced artefact, so a stale cache cannot mask a real
-      # dependency change. Cache scope is branch-partitioned by
-      # GitHub Actions, so a malicious PR can't poison main's cache.
-      - name: Cache Studio venv (~/.unsloth/studio/unsloth_studio)
-        id: cache-studio-venv
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/studio/unsloth_studio
-          key: ${{ runner.os }}-studio-venv-v1-${{ hashFiles('pyproject.toml', 'studio/backend/requirements/**', 'install.ps1', 'studio/setup.ps1', 'studio/install_python_stack.py') }}
-      - name: Cache prebuilt llama.cpp (~/.unsloth/llama.cpp)
-        id: cache-llama-prebuilt
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/llama.cpp
-          key: ${{ runner.os }}-llama-cpp-prebuilt-v1-${{ hashFiles('studio/install_llama_prebuilt.py') }}
-      - name: Cache frontend dist (studio/frontend/dist)
-        id: cache-frontend-dist
-        uses: actions/cache@v4
-        with:
-          path: studio/frontend/dist
-          key: ${{ runner.os }}-studio-frontend-dist-v1-${{ hashFiles('studio/frontend/package-lock.json', 'studio/frontend/src/**', 'studio/frontend/index.html', 'studio/frontend/vite.config.*', 'studio/frontend/tsconfig*.json', 'studio/frontend/components.json') }}
-
       - name: Install Studio (--local, --no-torch)
         # install.ps1 is the supported Windows installer. install.sh
         # has no Windows branch (apt-get / brew calls). The PS1
diff --git a/.github/workflows/studio-windows-update-smoke.yml b/.github/workflows/studio-windows-update-smoke.yml
index e2bf771dd5..86957f2b36 100644
--- a/.github/workflows/studio-windows-update-smoke.yml
+++ b/.github/workflows/studio-windows-update-smoke.yml
@@ -73,30 +73,6 @@ jobs:
           # then fatal-errors with "Cache folder path is retrieved
           # for pip but doesn't exist on disk".
 
-      # Caches around install.ps1 -- restore the heavy artefacts the
-      # installer would otherwise rebuild from scratch every run.
-      # Keys hash every input file that would meaningfully change
-      # the produced artefact, so a stale cache cannot mask a real
-      # dependency change.
-      - name: Cache Studio venv (~/.unsloth/studio/unsloth_studio)
-        id: cache-studio-venv
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/studio/unsloth_studio
-          key: ${{ runner.os }}-studio-venv-v1-${{ hashFiles('pyproject.toml', 'studio/backend/requirements/**', 'install.ps1', 'studio/setup.ps1', 'studio/install_python_stack.py') }}
-      - name: Cache prebuilt llama.cpp (~/.unsloth/llama.cpp)
-        id: cache-llama-prebuilt
-        uses: actions/cache@v4
-        with:
-          path: ~/.unsloth/llama.cpp
-          key: ${{ runner.os }}-llama-cpp-prebuilt-v1-${{ hashFiles('studio/install_llama_prebuilt.py') }}
-      - name: Cache frontend dist (studio/frontend/dist)
-        id: cache-frontend-dist
-        uses: actions/cache@v4
-        with:
-          path: studio/frontend/dist
-          key: ${{ runner.os }}-studio-frontend-dist-v1-${{ hashFiles('studio/frontend/package-lock.json', 'studio/frontend/src/**', 'studio/frontend/index.html', 'studio/frontend/vite.config.*', 'studio/frontend/tsconfig*.json', 'studio/frontend/components.json') }}
-
       - name: Install Studio (--local, --no-torch)
         shell: pwsh
         env: