diff --git a/cli-config.yaml.example b/cli-config.yaml.example
index 73bff981f..14d764d7d 100644
--- a/cli-config.yaml.example
+++ b/cli-config.yaml.example
@@ -644,10 +644,14 @@ platform_toolsets:
 # Voice Transcription (Speech-to-Text)
 # =============================================================================
 # Automatically transcribe voice messages on messaging platforms.
-# Requires OPENAI_API_KEY in .env (uses OpenAI Whisper API directly).
+# Providers: local (free, faster-whisper) | groq (free tier) | openai (Whisper API) | mistral (Voxtral Transcribe)
+# Set the corresponding API key in .env: GROQ_API_KEY, OPENAI_API_KEY, or MISTRAL_API_KEY.
 stt:
   enabled: true
+  # provider: "local"          # auto-detected if omitted
   model: "whisper-1"  # whisper-1 (cheapest) | gpt-4o-mini-transcribe | gpt-4o-transcribe
+  # mistral:
+  #   model: "voxtral-mini-latest"  # voxtral-mini-latest | voxtral-mini-2602
 
 # =============================================================================
 # Response Pacing (Messaging Platforms)
diff --git a/hermes_cli/config.py b/hermes_cli/config.py
index 4f1142043..350d99cf8 100644
--- a/hermes_cli/config.py
+++ b/hermes_cli/config.py
@@ -413,7 +413,7 @@ DEFAULT_CONFIG = {
     
     "stt": {
         "enabled": True,
-        "provider": "local",  # "local" (free, faster-whisper) | "groq" | "openai" (Whisper API)
+        "provider": "local",  # "local" (free, faster-whisper) | "groq" | "openai" (Whisper API) | "mistral" (Voxtral Transcribe)
         "local": {
             "model": "base",  # tiny, base, small, medium, large-v3
             "language": "",  # auto-detect by default; set to "en", "es", "fr", etc. to force
@@ -421,6 +421,9 @@ DEFAULT_CONFIG = {
         "openai": {
             "model": "whisper-1",  # whisper-1, gpt-4o-mini-transcribe, gpt-4o-transcribe
         },
+        "mistral": {
+            "model": "voxtral-mini-latest",  # voxtral-mini-latest, voxtral-mini-2602
+        },
     },
 
     "voice": {
diff --git a/pyproject.toml b/pyproject.toml
index 8982e6e46..de0e61060 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,6 +62,7 @@ mcp = ["mcp>=1.2.0,<2"]
 homeassistant = ["aiohttp>=3.9.0,<4"]
 sms = ["aiohttp>=3.9.0,<4"]
 acp = ["agent-client-protocol>=0.9.0,<1.0"]
+mistral = ["mistralai>=2.3.0,<3"]
 dingtalk = ["dingtalk-stream>=0.1.0,<1"]
 feishu = ["lark-oapi>=1.5.3,<2"]
 rl = [
@@ -94,6 +95,7 @@ all = [
   "hermes-agent[voice]",
   "hermes-agent[dingtalk]",
   "hermes-agent[feishu]",
+  "hermes-agent[mistral]",
 ]
 
 [project.scripts]
diff --git a/tests/tools/test_transcription_tools.py b/tests/tools/test_transcription_tools.py
index 0cd4c8e3c..9f5fab629 100644
--- a/tests/tools/test_transcription_tools.py
+++ b/tests/tools/test_transcription_tools.py
@@ -48,6 +48,7 @@ def clean_env(monkeypatch):
     monkeypatch.delenv("VOICE_TOOLS_OPENAI_KEY", raising=False)
     monkeypatch.delenv("OPENAI_API_KEY", raising=False)
     monkeypatch.delenv("GROQ_API_KEY", raising=False)
+    monkeypatch.delenv("MISTRAL_API_KEY", raising=False)
     monkeypatch.delenv("HERMES_LOCAL_STT_COMMAND", raising=False)
     monkeypatch.delenv("HERMES_LOCAL_STT_LANGUAGE", raising=False)
 
@@ -858,3 +859,183 @@ class TestGetSttModelFromConfig:
 
         from tools.transcription_tools import get_stt_model_from_config
         assert get_stt_model_from_config() is None
+
+
+# ============================================================================
+# _transcribe_mistral
+# ============================================================================
+
+
+@pytest.fixture
+def mock_mistral_module():
+    """Inject a fake mistralai module into sys.modules for testing."""
+    mock_client = MagicMock()
+    mock_client.__enter__ = MagicMock(return_value=mock_client)
+    mock_client.__exit__ = MagicMock(return_value=False)
+    mock_mistral_cls = MagicMock(return_value=mock_client)
+    fake_module = MagicMock()
+    fake_module.Mistral = mock_mistral_cls
+    with patch.dict("sys.modules", {"mistralai": fake_module}):
+        yield mock_client
+
+
+class TestTranscribeMistral:
+    def test_no_key(self, monkeypatch):
+        monkeypatch.delenv("MISTRAL_API_KEY", raising=False)
+        from tools.transcription_tools import _transcribe_mistral
+        result = _transcribe_mistral("/tmp/test.ogg", "voxtral-mini-latest")
+        assert result["success"] is False
+        assert "MISTRAL_API_KEY" in result["error"]
+
+    def test_successful_transcription(self, monkeypatch, sample_ogg, mock_mistral_module):
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+
+        mock_result = MagicMock()
+        mock_result.text = "hello from mistral"
+        mock_mistral_module.audio.transcriptions.complete.return_value = mock_result
+
+        from tools.transcription_tools import _transcribe_mistral
+        result = _transcribe_mistral(sample_ogg, "voxtral-mini-latest")
+
+        assert result["success"] is True
+        assert result["transcript"] == "hello from mistral"
+        assert result["provider"] == "mistral"
+        mock_mistral_module.audio.transcriptions.complete.assert_called_once()
+        mock_mistral_module.__exit__.assert_called_once()
+
+    def test_api_error_returns_failure(self, monkeypatch, sample_ogg, mock_mistral_module):
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        mock_mistral_module.audio.transcriptions.complete.side_effect = RuntimeError("secret-key-leaked")
+
+        from tools.transcription_tools import _transcribe_mistral
+        result = _transcribe_mistral(sample_ogg, "voxtral-mini-latest")
+
+        assert result["success"] is False
+        assert "RuntimeError" in result["error"]
+        assert "secret-key-leaked" not in result["error"]
+
+    def test_permission_error(self, monkeypatch, sample_ogg, mock_mistral_module):
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        mock_mistral_module.audio.transcriptions.complete.side_effect = PermissionError("denied")
+
+        from tools.transcription_tools import _transcribe_mistral
+        result = _transcribe_mistral(sample_ogg, "voxtral-mini-latest")
+
+        assert result["success"] is False
+        assert "Permission denied" in result["error"]
+
+
+# ============================================================================
+# _get_provider — Mistral
+# ============================================================================
+
+class TestGetProviderMistral:
+    """Mistral-specific provider selection tests."""
+
+    def test_mistral_when_key_and_sdk_available(self, monkeypatch):
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        with patch("tools.transcription_tools._HAS_MISTRAL", True):
+            from tools.transcription_tools import _get_provider
+            assert _get_provider({"provider": "mistral"}) == "mistral"
+
+    def test_mistral_explicit_no_key_returns_none(self, monkeypatch):
+        """Explicit mistral with no key returns none — no cross-provider fallback."""
+        monkeypatch.delenv("MISTRAL_API_KEY", raising=False)
+        with patch("tools.transcription_tools._HAS_MISTRAL", True):
+            from tools.transcription_tools import _get_provider
+            assert _get_provider({"provider": "mistral"}) == "none"
+
+    def test_mistral_explicit_no_sdk_returns_none(self, monkeypatch):
+        """Explicit mistral with key but no SDK returns none."""
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        with patch("tools.transcription_tools._HAS_MISTRAL", False):
+            from tools.transcription_tools import _get_provider
+            assert _get_provider({"provider": "mistral"}) == "none"
+
+    def test_auto_detect_mistral_after_openai(self, monkeypatch):
+        """Auto-detect: mistral is tried after openai when both are unavailable."""
+        monkeypatch.delenv("GROQ_API_KEY", raising=False)
+        monkeypatch.delenv("VOICE_TOOLS_OPENAI_KEY", raising=False)
+        monkeypatch.delenv("OPENAI_API_KEY", raising=False)
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        with patch("tools.transcription_tools._HAS_FASTER_WHISPER", False), \
+             patch("tools.transcription_tools._has_local_command", return_value=False), \
+             patch("tools.transcription_tools._HAS_OPENAI", False), \
+             patch("tools.transcription_tools._HAS_MISTRAL", True):
+            from tools.transcription_tools import _get_provider
+            assert _get_provider({}) == "mistral"
+
+    def test_auto_detect_openai_preferred_over_mistral(self, monkeypatch):
+        """Auto-detect: openai is preferred over mistral (both paid, openai more common)."""
+        monkeypatch.setenv("VOICE_TOOLS_OPENAI_KEY", "sk-test")
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        monkeypatch.delenv("GROQ_API_KEY", raising=False)
+        with patch("tools.transcription_tools._HAS_FASTER_WHISPER", False), \
+             patch("tools.transcription_tools._has_local_command", return_value=False), \
+             patch("tools.transcription_tools._HAS_OPENAI", True), \
+             patch("tools.transcription_tools._HAS_MISTRAL", True):
+            from tools.transcription_tools import _get_provider
+            assert _get_provider({}) == "openai"
+
+    def test_auto_detect_groq_preferred_over_mistral(self, monkeypatch):
+        """Auto-detect: groq (free) is preferred over mistral (paid)."""
+        monkeypatch.setenv("GROQ_API_KEY", "gsk-test")
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        with patch("tools.transcription_tools._HAS_FASTER_WHISPER", False), \
+             patch("tools.transcription_tools._has_local_command", return_value=False), \
+             patch("tools.transcription_tools._HAS_OPENAI", True), \
+             patch("tools.transcription_tools._HAS_MISTRAL", True):
+            from tools.transcription_tools import _get_provider
+            assert _get_provider({}) == "groq"
+
+    def test_auto_detect_skips_mistral_without_sdk(self, monkeypatch):
+        """Auto-detect: mistral skipped when key is set but SDK is not installed."""
+        monkeypatch.delenv("GROQ_API_KEY", raising=False)
+        monkeypatch.delenv("VOICE_TOOLS_OPENAI_KEY", raising=False)
+        monkeypatch.delenv("OPENAI_API_KEY", raising=False)
+        monkeypatch.setenv("MISTRAL_API_KEY", "test-key")
+        with patch("tools.transcription_tools._HAS_FASTER_WHISPER", False), \
+             patch("tools.transcription_tools._has_local_command", return_value=False), \
+             patch("tools.transcription_tools._HAS_OPENAI", False), \
+             patch("tools.transcription_tools._HAS_MISTRAL", False):
+            from tools.transcription_tools import _get_provider
+            assert _get_provider({}) == "none"
+
+
+# ============================================================================
+# transcribe_audio — Mistral dispatch
+# ============================================================================
+
+class TestTranscribeAudioMistralDispatch:
+    def test_dispatches_to_mistral(self, sample_ogg):
+        with patch("tools.transcription_tools._load_stt_config", return_value={"provider": "mistral"}), \
+             patch("tools.transcription_tools._get_provider", return_value="mistral"), \
+             patch("tools.transcription_tools._transcribe_mistral",
+                   return_value={"success": True, "transcript": "hi", "provider": "mistral"}) as mock_mistral:
+            from tools.transcription_tools import transcribe_audio
+            result = transcribe_audio(sample_ogg)
+
+        assert result["success"] is True
+        assert result["provider"] == "mistral"
+        mock_mistral.assert_called_once()
+
+    def test_config_mistral_model_used(self, sample_ogg):
+        config = {"provider": "mistral", "mistral": {"model": "voxtral-mini-2602"}}
+        with patch("tools.transcription_tools._load_stt_config", return_value=config), \
+             patch("tools.transcription_tools._get_provider", return_value="mistral"), \
+             patch("tools.transcription_tools._transcribe_mistral",
+                   return_value={"success": True, "transcript": "hi"}) as mock_mistral:
+            from tools.transcription_tools import transcribe_audio
+            transcribe_audio(sample_ogg, model=None)
+
+        assert mock_mistral.call_args[0][1] == "voxtral-mini-2602"
+
+    def test_model_override_passed_to_mistral(self, sample_ogg):
+        with patch("tools.transcription_tools._load_stt_config", return_value={}), \
+             patch("tools.transcription_tools._get_provider", return_value="mistral"), \
+             patch("tools.transcription_tools._transcribe_mistral",
+                   return_value={"success": True, "transcript": "hi"}) as mock_mistral:
+            from tools.transcription_tools import transcribe_audio
+            transcribe_audio(sample_ogg, model="voxtral-mini-2602")
+
+        assert mock_mistral.call_args[0][1] == "voxtral-mini-2602"
diff --git a/tools/transcription_tools.py b/tools/transcription_tools.py
index 4f07e5c47..296c74a21 100644
--- a/tools/transcription_tools.py
+++ b/tools/transcription_tools.py
@@ -57,6 +57,7 @@ def _safe_find_spec(module_name: str) -> bool:
 
 _HAS_FASTER_WHISPER = _safe_find_spec("faster_whisper")
 _HAS_OPENAI = _safe_find_spec("openai")
+_HAS_MISTRAL = _safe_find_spec("mistralai")
 
 # ---------------------------------------------------------------------------
 # Constants
@@ -67,6 +68,7 @@ DEFAULT_LOCAL_MODEL = "base"
 DEFAULT_LOCAL_STT_LANGUAGE = "en"
 DEFAULT_STT_MODEL = os.getenv("STT_OPENAI_MODEL", "whisper-1")
 DEFAULT_GROQ_STT_MODEL = os.getenv("STT_GROQ_MODEL", "whisper-large-v3-turbo")
+DEFAULT_MISTRAL_STT_MODEL = os.getenv("STT_MISTRAL_MODEL", "voxtral-mini-latest")
 LOCAL_STT_COMMAND_ENV = "HERMES_LOCAL_STT_COMMAND"
 LOCAL_STT_LANGUAGE_ENV = "HERMES_LOCAL_STT_LANGUAGE"
 COMMON_LOCAL_BIN_DIRS = ("/opt/homebrew/bin", "/usr/local/bin")
@@ -74,7 +76,7 @@ COMMON_LOCAL_BIN_DIRS = ("/opt/homebrew/bin", "/usr/local/bin")
 GROQ_BASE_URL = os.getenv("GROQ_BASE_URL", "https://api.groq.com/openai/v1")
 OPENAI_BASE_URL = os.getenv("STT_OPENAI_BASE_URL", "https://api.openai.com/v1")
 
-SUPPORTED_FORMATS = {".mp3", ".mp4", ".mpeg", ".mpga", ".m4a", ".wav", ".webm", ".ogg", ".aac"}
+SUPPORTED_FORMATS = {".mp3", ".mp4", ".mpeg", ".mpga", ".m4a", ".wav", ".webm", ".ogg", ".aac", ".flac"}
 LOCAL_NATIVE_AUDIO_FORMATS = {".wav", ".aiff", ".aif"}
 MAX_FILE_SIZE = 25 * 1024 * 1024  # 25 MB
 
@@ -227,9 +229,18 @@ def _get_provider(stt_config: dict) -> str:
             )
             return "none"
 
+        if provider == "mistral":
+            if _HAS_MISTRAL and os.getenv("MISTRAL_API_KEY"):
+                return "mistral"
+            logger.warning(
+                "STT provider 'mistral' configured but mistralai package "
+                "not installed or MISTRAL_API_KEY not set"
+            )
+            return "none"
+
         return provider  # Unknown — let it fail downstream
 
-    # --- Auto-detect (no explicit provider): local > groq > openai ---------
+    # --- Auto-detect (no explicit provider): local > groq > openai > mistral -
 
     if _HAS_FASTER_WHISPER:
         return "local"
@@ -241,6 +252,9 @@ def _get_provider(stt_config: dict) -> str:
     if _HAS_OPENAI and _has_openai_audio_backend():
         logger.info("No local STT available, using OpenAI Whisper API")
         return "openai"
+    if _HAS_MISTRAL and os.getenv("MISTRAL_API_KEY"):
+        logger.info("No local STT available, using Mistral Voxtral Transcribe API")
+        return "mistral"
     return "none"
 
 # ---------------------------------------------------------------------------
@@ -516,6 +530,45 @@ def _transcribe_openai(file_path: str, model_name: str) -> Dict[str, Any]:
         logger.error("OpenAI transcription failed: %s", e, exc_info=True)
         return {"success": False, "transcript": "", "error": f"Transcription failed: {e}"}
 
+# ---------------------------------------------------------------------------
+# Provider: mistral (Voxtral Transcribe API)
+# ---------------------------------------------------------------------------
+
+
+def _transcribe_mistral(file_path: str, model_name: str) -> Dict[str, Any]:
+    """Transcribe using Mistral Voxtral Transcribe API.
+
+    Uses the ``mistralai`` Python SDK to call ``/v1/audio/transcriptions``.
+    Requires ``MISTRAL_API_KEY`` environment variable.
+    """
+    api_key = os.getenv("MISTRAL_API_KEY")
+    if not api_key:
+        return {"success": False, "transcript": "", "error": "MISTRAL_API_KEY not set"}
+
+    try:
+        from mistralai import Mistral
+
+        with Mistral(api_key=api_key) as client:
+            with open(file_path, "rb") as audio_file:
+                result = client.audio.transcriptions.complete(
+                    model=model_name,
+                    file={"content": audio_file, "file_name": Path(file_path).name},
+                )
+
+            transcript_text = _extract_transcript_text(result)
+            logger.info(
+                "Transcribed %s via Mistral API (%s, %d chars)",
+                Path(file_path).name, model_name, len(transcript_text),
+            )
+            return {"success": True, "transcript": transcript_text, "provider": "mistral"}
+
+    except PermissionError:
+        return {"success": False, "transcript": "", "error": f"Permission denied: {file_path}"}
+    except Exception as e:
+        logger.error("Mistral transcription failed: %s", e, exc_info=True)
+        return {"success": False, "transcript": "", "error": f"Mistral transcription failed: {type(e).__name__}"}
+
+
 # ---------------------------------------------------------------------------
 # Public API
 # ---------------------------------------------------------------------------
@@ -577,6 +630,11 @@ def transcribe_audio(file_path: str, model: Optional[str] = None) -> Dict[str, A
         model_name = model or openai_cfg.get("model", DEFAULT_STT_MODEL)
         return _transcribe_openai(file_path, model_name)
 
+    if provider == "mistral":
+        mistral_cfg = stt_config.get("mistral", {})
+        model_name = model or mistral_cfg.get("model", DEFAULT_MISTRAL_STT_MODEL)
+        return _transcribe_mistral(file_path, model_name)
+
     # No provider available
     return {
         "success": False,
@@ -584,7 +642,8 @@ def transcribe_audio(file_path: str, model: Optional[str] = None) -> Dict[str, A
         "error": (
             "No STT provider available. Install faster-whisper for free local "
             f"transcription, configure {LOCAL_STT_COMMAND_ENV} or install a local whisper CLI, "
-            "set GROQ_API_KEY for free Groq Whisper, or set VOICE_TOOLS_OPENAI_KEY "
+            "set GROQ_API_KEY for free Groq Whisper, set MISTRAL_API_KEY for Mistral "
+            "Voxtral Transcribe, or set VOICE_TOOLS_OPENAI_KEY "
             "or OPENAI_API_KEY for the OpenAI Whisper API."
         ),
     }
diff --git a/uv.lock b/uv.lock
index 8a5db5436..a3df304c9 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1158,6 +1158,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/97/a8/c070e1340636acb38d4e6a7e45c46d168a462b48b9b3257e14ca0e5af79b/environs-14.6.0-py3-none-any.whl", hash = "sha256:f8fb3d6c6a55872b0c6db077a28f5a8c7b8984b7c32029613d44cef95cfc0812", size = 17205, upload-time = "2026-02-20T04:02:07.299Z" },
 ]
 
+[[package]]
+name = "eval-type-backport"
+version = "0.3.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/fb/a3/cafafb4558fd638aadfe4121dc6cefb8d743368c085acb2f521df0f3d9d7/eval_type_backport-0.3.1.tar.gz", hash = "sha256:57e993f7b5b69d271e37482e62f74e76a0276c82490cf8e4f0dffeb6b332d5ed", size = 9445, upload-time = "2025-12-02T11:51:42.987Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/cf/22/fdc2e30d43ff853720042fa15baa3e6122722be1a7950a98233ebb55cd71/eval_type_backport-0.3.1-py3-none-any.whl", hash = "sha256:279ab641905e9f11129f56a8a78f493518515b83402b860f6f06dd7c011fdfa8", size = 6063, upload-time = "2025-12-02T11:51:41.665Z" },
+]
+
 [[package]]
 name = "exa-py"
 version = "2.10.2"
@@ -1683,6 +1692,7 @@ all = [
     { name = "honcho-ai" },
     { name = "lark-oapi" },
     { name = "mcp" },
+    { name = "mistralai" },
     { name = "modal" },
     { name = "numpy" },
     { name = "ptyprocess", marker = "sys_platform != 'win32'" },
@@ -1738,6 +1748,9 @@ messaging = [
     { name = "slack-bolt" },
     { name = "slack-sdk" },
 ]
+mistral = [
+    { name = "mistralai" },
+]
 modal = [
     { name = "modal" },
 ]
@@ -1803,6 +1816,7 @@ requires-dist = [
     { name = "hermes-agent", extras = ["honcho"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["mcp"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["messaging"], marker = "extra == 'all'" },
+    { name = "hermes-agent", extras = ["mistral"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["modal"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["pty"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["slack"], marker = "extra == 'all'" },
@@ -1817,6 +1831,7 @@ requires-dist = [
     { name = "matrix-nio", extras = ["e2e"], marker = "extra == 'matrix'", specifier = ">=0.24.0,<1" },
     { name = "mcp", marker = "extra == 'dev'", specifier = ">=1.2.0,<2" },
     { name = "mcp", marker = "extra == 'mcp'", specifier = ">=1.2.0,<2" },
+    { name = "mistralai", marker = "extra == 'mistral'", specifier = ">=2.3.0,<3" },
     { name = "modal", marker = "extra == 'modal'", specifier = ">=1.0.0,<2" },
     { name = "numpy", marker = "extra == 'voice'", specifier = ">=1.24.0,<3" },
     { name = "openai", specifier = ">=2.21.0,<3" },
@@ -1846,7 +1861,7 @@ requires-dist = [
     { name = "wandb", marker = "extra == 'rl'", specifier = ">=0.15.0,<1" },
     { name = "yc-bench", marker = "python_full_version >= '3.12' and extra == 'yc-bench'", git = "https://github.com/collinear-ai/yc-bench.git" },
 ]
-provides-extras = ["modal", "daytona", "dev", "messaging", "cron", "slack", "matrix", "cli", "tts-premium", "voice", "pty", "honcho", "mcp", "homeassistant", "sms", "acp", "dingtalk", "feishu", "rl", "yc-bench", "all"]
+provides-extras = ["modal", "daytona", "dev", "messaging", "cron", "slack", "matrix", "cli", "tts-premium", "voice", "pty", "honcho", "mcp", "homeassistant", "sms", "acp", "mistral", "dingtalk", "feishu", "rl", "yc-bench", "all"]
 
 [[package]]
 name = "hf-transfer"
@@ -2191,6 +2206,15 @@ wheels = [
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diff --git a/website/docs/user-guide/features/tts.md b/website/docs/user-guide/features/tts.md
index ca64170d9..0cd4ed699 100644
--- a/website/docs/user-guide/features/tts.md
+++ b/website/docs/user-guide/features/tts.md
@@ -102,11 +102,13 @@ Local transcription works out of the box when `faster-whisper` is installed. If
 ```yaml
 # In ~/.hermes/config.yaml
 stt:
-  provider: "local"           # "local" | "groq" | "openai"
+  provider: "local"           # "local" | "groq" | "openai" | "mistral"
   local:
     model: "base"             # tiny, base, small, medium, large-v3
   openai:
     model: "whisper-1"        # whisper-1, gpt-4o-mini-transcribe, gpt-4o-transcribe
+  mistral:
+    model: "voxtral-mini-latest"  # voxtral-mini-latest, voxtral-mini-2602
 ```
 
 ### Provider Details
@@ -125,6 +127,8 @@ stt:
 
 **OpenAI API** — Accepts `VOICE_TOOLS_OPENAI_KEY` first and falls back to `OPENAI_API_KEY`. Supports `whisper-1`, `gpt-4o-mini-transcribe`, and `gpt-4o-transcribe`.
 
+**Mistral API (Voxtral Transcribe)** — Requires `MISTRAL_API_KEY`. Uses Mistral's [Voxtral Transcribe](https://docs.mistral.ai/capabilities/audio/speech_to_text/) models. Supports 13 languages, speaker diarization, and word-level timestamps. Install with `pip install hermes-agent[mistral]`.
+
 **Custom local CLI fallback** — Set `HERMES_LOCAL_STT_COMMAND` if you want Hermes to call a local transcription command directly. The command template supports `{input_path}`, `{output_dir}`, `{language}`, and `{model}` placeholders.
 
 ### Fallback Behavior
@@ -133,4 +137,5 @@ If your configured provider isn't available, Hermes automatically falls back:
 - **Local faster-whisper unavailable** → Tries a local `whisper` CLI or `HERMES_LOCAL_STT_COMMAND` before cloud providers
 - **Groq key not set** → Falls back to local transcription, then OpenAI
 - **OpenAI key not set** → Falls back to local transcription, then Groq
+- **Mistral key/SDK not set** → Skipped in auto-detect; falls through to next available provider
 - **Nothing available** → Voice messages pass through with an accurate note to the user