HumeAI · fern-api · May 18, 2026 · May 18, 2026
diff --git a/.fern/metadata.json b/.fern/metadata.json
@@ -1,5 +1,5 @@
 {
-  "cliVersion": "4.62.5",
+  "cliVersion": "4.65.2",
   "generatorName": "fernapi/fern-python-sdk",
   "generatorVersion": "4.61.0",
   "generatorConfig": {
@@ -64,6 +64,6 @@
       }
     ]
   },
-  "originGitCommit": "a07a0deaa640e8b286f9c8e4e47426b37a083a67",
-  "sdkVersion": "0.13.11"
+  "originGitCommit": "4d3b0e268ae51b18618f73109de010b707efad88",
+  "sdkVersion": "0.13.12"
 }
diff --git a/poetry.lock b/poetry.lock
diff --git a/pyproject.toml b/pyproject.toml
@@ -4,7 +4,7 @@ dynamic = ["version"]
 
 [tool.poetry]
 name = "hume"
-version = "0.13.11"
+version = "0.13.12"
 description = "A Python SDK for Hume AI"
 readme = "README.md"
 authors = []

diff --git a/src/hume/base_client.py b/src/hume/base_client.py
@@ -81,18 +81,10 @@ def __init__(
             timeout=_defaulted_timeout,
             logging=logging,
         )
-        self._empathic_voice: typing.Optional[EmpathicVoiceClient] = None
         self._tts: typing.Optional[TtsClient] = None
+        self._empathic_voice: typing.Optional[EmpathicVoiceClient] = None
         self._expression_measurement: typing.Optional[ExpressionMeasurementClient] = None
 
-    @property
-    def empathic_voice(self):
-        if self._empathic_voice is None:
-            from .empathic_voice.client import EmpathicVoiceClient  # noqa: E402
-
-            self._empathic_voice = EmpathicVoiceClient(client_wrapper=self._client_wrapper)
-        return self._empathic_voice
-
     @property
     def tts(self):
         if self._tts is None:
@@ -101,6 +93,14 @@ def tts(self):
             self._tts = TtsClient(client_wrapper=self._client_wrapper)
         return self._tts
 
+    @property
+    def empathic_voice(self):
+        if self._empathic_voice is None:
+            from .empathic_voice.client import EmpathicVoiceClient  # noqa: E402
+
+            self._empathic_voice = EmpathicVoiceClient(client_wrapper=self._client_wrapper)
+        return self._empathic_voice
+
     @property
     def expression_measurement(self):
         if self._expression_measurement is None:
@@ -176,18 +176,10 @@ def __init__(
             timeout=_defaulted_timeout,
             logging=logging,
         )
-        self._empathic_voice: typing.Optional[AsyncEmpathicVoiceClient] = None
         self._tts: typing.Optional[AsyncTtsClient] = None
+        self._empathic_voice: typing.Optional[AsyncEmpathicVoiceClient] = None
         self._expression_measurement: typing.Optional[AsyncExpressionMeasurementClient] = None
 
-    @property
-    def empathic_voice(self):
-        if self._empathic_voice is None:
-            from .empathic_voice.client import AsyncEmpathicVoiceClient  # noqa: E402
-
-            self._empathic_voice = AsyncEmpathicVoiceClient(client_wrapper=self._client_wrapper)
-        return self._empathic_voice
-
     @property
     def tts(self):
         if self._tts is None:
@@ -196,6 +188,14 @@ def tts(self):
             self._tts = AsyncTtsClient(client_wrapper=self._client_wrapper)
         return self._tts
 
+    @property
+    def empathic_voice(self):
+        if self._empathic_voice is None:
+            from .empathic_voice.client import AsyncEmpathicVoiceClient  # noqa: E402
+
+            self._empathic_voice = AsyncEmpathicVoiceClient(client_wrapper=self._client_wrapper)
+        return self._empathic_voice
+
     @property
     def expression_measurement(self):
         if self._expression_measurement is None:

diff --git a/src/hume/core/client_wrapper.py b/src/hume/core/client_wrapper.py
@@ -28,12 +28,12 @@ def get_headers(self) -> typing.Dict[str, str]:
         import platform
 
         headers: typing.Dict[str, str] = {
-            "User-Agent": "hume/0.13.11",
+            "User-Agent": "hume/0.13.12",
             "X-Fern-Language": "Python",
             "X-Fern-Runtime": f"python/{platform.python_version()}",
             "X-Fern-Platform": f"{platform.system().lower()}/{platform.release()}",
             "X-Fern-SDK-Name": "hume",
-            "X-Fern-SDK-Version": "0.13.11",
+            "X-Fern-SDK-Version": "0.13.12",
             **(self.get_custom_headers() or {}),
         }
         if self.api_key is not None:

diff --git a/src/hume/tts/__init__.py b/src/hume/tts/__init__.py
@@ -9,6 +9,7 @@
     from .types import (
         AudioEncoding,
         AudioFormatType,
+        Context,
         ErrorResponse,
         Format,
         FormatMp3,
@@ -21,6 +22,7 @@
         PostedContextWithGenerationId,
         PostedContextWithUtterances,
         PostedTts,
+        PostedTtsStream,
         PostedUtterance,
         PostedUtteranceVoice,
         PostedUtteranceVoiceWithId,
@@ -46,6 +48,7 @@
     "AudioEncoding": ".types",
     "AudioFormatType": ".types",
     "BadRequestError": ".errors",
+    "Context": ".types",
     "ErrorResponse": ".types",
     "Format": ".types",
     "FormatMp3": ".types",
@@ -58,6 +61,7 @@
     "PostedContextWithGenerationId": ".types",
     "PostedContextWithUtterances": ".types",
     "PostedTts": ".types",
+    "PostedTtsStream": ".types",
     "PostedUtterance": ".types",
     "PostedUtteranceVoice": ".types",
     "PostedUtteranceVoiceWithId": ".types",
@@ -107,6 +111,7 @@ def __dir__():
     "AudioEncoding",
     "AudioFormatType",
     "BadRequestError",
+    "Context",
     "ErrorResponse",
     "Format",
     "FormatMp3",
@@ -119,6 +124,7 @@ def __dir__():
     "PostedContextWithGenerationId",
     "PostedContextWithUtterances",
     "PostedTts",
+    "PostedTtsStream",
     "PostedUtterance",
     "PostedUtteranceVoice",
     "PostedUtteranceVoiceWithId",

diff --git a/src/hume/tts/client.py b/src/hume/tts/client.py
@@ -53,7 +53,6 @@ def synthesize_json(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> ReturnTts:
         """
@@ -101,8 +100,6 @@ def synthesize_json(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -147,7 +144,6 @@ def synthesize_json(
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         )
         return _response.data
@@ -163,7 +159,6 @@ def synthesize_file(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> typing.Iterator[bytes]:
         """
@@ -211,8 +206,6 @@ def synthesize_file(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration. You can pass in configuration such as `chunk_size`, and more to customize the request and response.
 
@@ -252,7 +245,6 @@ def synthesize_file(
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         ) as r:
             yield from r.data
@@ -268,7 +260,6 @@ def synthesize_file_streaming(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> typing.Iterator[bytes]:
         """
@@ -314,8 +305,6 @@ def synthesize_file_streaming(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration. You can pass in configuration such as `chunk_size`, and more to customize the request and response.
 
@@ -353,7 +342,6 @@ def synthesize_file_streaming(
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         ) as r:
             yield from r.data
@@ -369,7 +357,6 @@ def synthesize_json_streaming(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> typing.Iterator[TtsOutput]:
         """
@@ -417,8 +404,6 @@ def synthesize_json_streaming(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -458,7 +443,6 @@ def synthesize_json_streaming(
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         ) as r:
             yield from r.data
@@ -620,7 +604,6 @@ async def synthesize_json(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> ReturnTts:
         """
@@ -668,8 +651,6 @@ async def synthesize_json(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -722,7 +703,6 @@ async def main() -> None:
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         )
         return _response.data
@@ -738,7 +718,6 @@ async def synthesize_file(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> typing.AsyncIterator[bytes]:
         """
@@ -786,8 +765,6 @@ async def synthesize_file(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration. You can pass in configuration such as `chunk_size`, and more to customize the request and response.
 
@@ -835,7 +812,6 @@ async def main() -> None:
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         ) as r:
             async for _chunk in r.data:
@@ -852,7 +828,6 @@ async def synthesize_file_streaming(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> typing.AsyncIterator[bytes]:
         """
@@ -898,8 +873,6 @@ async def synthesize_file_streaming(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration. You can pass in configuration such as `chunk_size`, and more to customize the request and response.
 
@@ -945,7 +918,6 @@ async def main() -> None:
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         ) as r:
             async for _chunk in r.data:
@@ -962,7 +934,6 @@ async def synthesize_json_streaming(
         split_utterances: typing.Optional[bool] = OMIT,
         strip_headers: typing.Optional[bool] = OMIT,
         version: typing.Optional[OctaveVersion] = OMIT,
-        instant_mode: typing.Optional[bool] = OMIT,
         request_options: typing.Optional[RequestOptions] = None,
     ) -> typing.AsyncIterator[TtsOutput]:
         """
@@ -1010,8 +981,6 @@ async def synthesize_json_streaming(
 
             For a comparison of Octave versions, see the [Octave versions](/docs/text-to-speech-tts/overview#octave-versions) section in the TTS overview.
 
-        instant_mode : typing.Optional[bool]
-
         request_options : typing.Optional[RequestOptions]
             Request-specific configuration.
 
@@ -1059,7 +1028,6 @@ async def main() -> None:
             split_utterances=split_utterances,
             strip_headers=strip_headers,
             version=version,
-            instant_mode=instant_mode,
             request_options=request_options,
         ) as r:
             async for _chunk in r.data: