See the Cloud Speech
documentation
for which models have different variants. For example, the "phone_call" model
has both a standard and an enhanced variant. When you use an enhanced model,
you will generally receive higher quality results than for a standard model.
Protobuf type google.cloud.dialogflow.v2.SpeechModelVariant
Namespace
Google \ Cloud \ Dialogflow \ V2
Methods
static::name
Parameter
Name
Description
value
mixed
static::value
Parameter
Name
Description
name
mixed
Constants
SPEECH_MODEL_VARIANT_UNSPECIFIED
Value: 0
No model variant specified. In this case Dialogflow defaults to
USE_BEST_AVAILABLE.
Generated from protobuf enum SPEECH_MODEL_VARIANT_UNSPECIFIED = 0;
USE_BEST_AVAILABLE
Value: 1
Use the best available variant of the Speech model that the caller
is eligible for.
Please see the Dialogflow
docs for
how to make your project eligible for enhanced models.
Generated from protobuf enum USE_BEST_AVAILABLE = 1;
USE_STANDARD
Value: 2
Use standard model variant even if an enhanced model is available. See the
Cloud Speech
documentation
for details about enhanced models.
Generated from protobuf enum USE_STANDARD = 2;
USE_ENHANCED
Value: 3
Use an enhanced model variant:
If an enhanced variant does not exist for the given
model and request
language, Dialogflow falls back to the standard variant.
If the API caller isn't eligible for enhanced models, Dialogflow returns
an error. Please see the Dialogflow
docs
for how to make your project eligible.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Google Cloud Dialogflow V2 Client - Class SpeechModelVariant (2.1.2)\n\nVersion latestkeyboard_arrow_down\n\n- [2.1.2 (latest)](/php/docs/reference/cloud-dialogflow/latest/V2.SpeechModelVariant)\n- [2.1.1](/php/docs/reference/cloud-dialogflow/2.1.1/V2.SpeechModelVariant)\n- [2.0.1](/php/docs/reference/cloud-dialogflow/2.0.1/V2.SpeechModelVariant)\n- [1.17.2](/php/docs/reference/cloud-dialogflow/1.17.2/V2.SpeechModelVariant)\n- [1.16.0](/php/docs/reference/cloud-dialogflow/1.16.0/V2.SpeechModelVariant)\n- [1.15.1](/php/docs/reference/cloud-dialogflow/1.15.1/V2.SpeechModelVariant)\n- [1.14.0](/php/docs/reference/cloud-dialogflow/1.14.0/V2.SpeechModelVariant)\n- [1.13.0](/php/docs/reference/cloud-dialogflow/1.13.0/V2.SpeechModelVariant)\n- [1.12.3](/php/docs/reference/cloud-dialogflow/1.12.3/V2.SpeechModelVariant)\n- [1.11.0](/php/docs/reference/cloud-dialogflow/1.11.0/V2.SpeechModelVariant)\n- [1.10.2](/php/docs/reference/cloud-dialogflow/1.10.2/V2.SpeechModelVariant)\n- [1.9.0](/php/docs/reference/cloud-dialogflow/1.9.0/V2.SpeechModelVariant)\n- [1.8.0](/php/docs/reference/cloud-dialogflow/1.8.0/V2.SpeechModelVariant)\n- [1.7.2](/php/docs/reference/cloud-dialogflow/1.7.2/V2.SpeechModelVariant)\n- [1.6.0](/php/docs/reference/cloud-dialogflow/1.6.0/V2.SpeechModelVariant)\n- [1.5.0](/php/docs/reference/cloud-dialogflow/1.5.0/V2.SpeechModelVariant)\n- [1.4.0](/php/docs/reference/cloud-dialogflow/1.4.0/V2.SpeechModelVariant)\n- [1.3.2](/php/docs/reference/cloud-dialogflow/1.3.2/V2.SpeechModelVariant)\n- [1.2.0](/php/docs/reference/cloud-dialogflow/1.2.0/V2.SpeechModelVariant)\n- [1.1.1](/php/docs/reference/cloud-dialogflow/1.1.1/V2.SpeechModelVariant)\n- [1.0.1](/php/docs/reference/cloud-dialogflow/1.0.1/V2.SpeechModelVariant) \nReference documentation and code samples for the Google Cloud Dialogflow V2 Client class SpeechModelVariant.\n\nVariant of the specified [Speech\nmodel](/php/docs/reference/cloud-dialogflow/latest/V2.InputAudioConfig#_Google_Cloud_Dialogflow_V2_InputAudioConfig__getModel__) to use.\n\nSee the [Cloud Speech\ndocumentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)\nfor which models have different variants. For example, the \"phone_call\" model\nhas both a standard and an enhanced variant. When you use an enhanced model,\nyou will generally receive higher quality results than for a standard model.\n\nProtobuf type `google.cloud.dialogflow.v2.SpeechModelVariant`\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ Dialogflow \\\\ V2\n\nMethods\n-------\n\n### static::name\n\n### static::value\n\nConstants\n---------\n\n### SPEECH_MODEL_VARIANT_UNSPECIFIED\n\n Value: 0\n\nNo model variant specified. In this case Dialogflow defaults to\nUSE_BEST_AVAILABLE.\n\nGenerated from protobuf enum `SPEECH_MODEL_VARIANT_UNSPECIFIED = 0;`\n\n### USE_BEST_AVAILABLE\n\n Value: 1\n\nUse the best available variant of the Speech model that the caller\nis eligible for.\n\nPlease see the [Dialogflow\ndocs](https://cloud.google.com/dialogflow/docs/data-logging) for\nhow to make your project eligible for enhanced models.\n\nGenerated from protobuf enum `USE_BEST_AVAILABLE = 1;`\n\n### USE_STANDARD\n\n Value: 2\n\nUse standard model variant even if an enhanced model is available. See the\n[Cloud Speech\ndocumentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)\nfor details about enhanced models.\n\nGenerated from protobuf enum `USE_STANDARD = 2;`\n\n### USE_ENHANCED\n\n Value: 3\n\nUse an enhanced model variant:\n\n- If an enhanced variant does not exist for the given [model](/php/docs/reference/cloud-dialogflow/latest/V2.InputAudioConfig#_Google_Cloud_Dialogflow_V2_InputAudioConfig__getModel__) and request language, Dialogflow falls back to the standard variant.\n\nThe [Cloud Speech\ndocumentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)\ndescribes which models have enhanced variants.\n\n- If the API caller isn't eligible for enhanced models, Dialogflow returns an error. Please see the [Dialogflow\n docs](https://cloud.google.com/dialogflow/docs/data-logging) for how to make your project eligible.\n\nGenerated from protobuf enum `USE_ENHANCED = 3;`"]]