Quotas and limits

This document contains the current quotas and limits for use of Dialogflow. We reserve the right to change these constraints, and this page will be updated to reflect any changes.

Definitions

The following terms are used to describe pricing and quotas:

Request: A request is defined as any call to the Dialogflow service, whether direct with API usage or indirect with integration or console usage. Depending on the task and design of the agent, the number of requests needed for an end-user to accomplish a task with a Dialogflow agent can vary greatly.
Session: A session is a conversation between an end-user and a Dialogflow agent. A session remains active and its data is stored for 30 minutes after the last request is sent for the session. A session can be either a chat session or a voice session. For the purpose of calculating prices and quotas, one conversation can count as multiple sessions:
Consumer projects and resource projects: If you use multiple projects, it is possible that the project associated with your request authentication (consumer project) is not the same project that is associated with the agent in the request (resource project). In this case, the consumer project is used to determine prices and quotas. For more information, see Using multiple projects.

Quotas

Quotas are default constraints applied to your project. If you are using a paid edition, you can request a quota increase. The purpose of quotas is to throttle service load per client, which protects a service from being overloaded and a client from unexpected resource usage.

Dialogflow quotas vary, depending on the edition of your agent. Quotas apply to each project and are shared across all applications and IP addresses using a project.

The quotas listed below are the commonly encountered quotas. To review all quotas, see the GCP Console Dialogflow quotas page. To request a higher quota, click Apply for a higher quota in the quota edit form to submit a Dialogflow Quota Increase Request.

Quotas table

The following tables provide a quota comparison for editions by agent type. Unless a feature is indicated as included, pricing and quotas are cumulative for all features used by a request.

CX Agent

Feature	CX Edition
Text	1200 requests per minute
Audio input/output (speech recognition, speech-to-text, STT, speech synthesis, text-to-speech, TTS)	600 requests per minute
Design-time requests For example, calls to build or update an agent.	60 requests per minute
Other session requests For example, setting session entities or updating/querying context.	100 requests per minute

ES Agent

Feature	Trial Edition	Essentials Edition
Text ¶	180 requests per minute	600 requests per minute
Audio input † (also known as speech recognition, speech-to-text, STT)	100 requests per minute 1,000 requests per day 15,000 requests per month Maximum 60 seconds of audio length per request	300 requests per minute Maximum 60 seconds of audio length per request
Audio output † (also known as speech synthesis, text-to-speech, TTS)	Same as audio input	Same as audio input
Knowledge Connectors (Beta)	Maximum 10 MB total document size 1,000 requests per month 100 requests per day	Unlimited #
Sentiment analysis	Not available	Unlimited #
Dialogflow phone gateway (Beta) Includes audio input and output.	Toll-free number: Not available 3 total phone minutes per minute ‡ 30 phone minutes per day 500 phone minutes per month Phone number reserved for 30 days	100 total phone minutes per minute ‡
Mega agent	1000 requests per day	Unlimited #
Design-time requests For example, calls to build or update an agent.	60 requests per minute	60 requests per minute
Other session requests For example, setting session entities or updating/querying context.	100 requests per minute	100 requests per minute

†	Each StreamingDetectIntent stream is considered a single request, even though the stream might include multiple frames of `StreamingDetectIntentRequest` audio within the stream.
‡	"Phone minutes per minute" is the total sum of time per minute that is used by all users making calls through the phone system. For example: in one 60-second time period one user is on for 60 seconds, a second for 30 seconds, and a third for 30 seconds. This is calculated as 2 minutes per minute. More minutes per minute allows more users to use the system simultaneously.
#	Features marked as unlimited are still potentially limited by use of other features. For example, if your edition provides unlimited quota for knowledge connectors, a text request that uses knowledge connectors is still limited by the quota for text requests.
¶	Google Assistant audio input and output is considered a text request.

Limits

Limits are fixed constraints, which cannot be increased. Many resources and fields have count, duration, or length limitations, which are fixed constraints for the service implementation.

The following tables list commonly encountered limits. Feature-specific documentation and API reference documentation may provide additional limits.

Count limits

CX Agent

Description	Limit
Maximum number of agents per Google Cloud project	100
Maximum number of flows per agent	20
Maximum number of entity types per agent	250
Maximum number of webhooks per agent	100
Maximum number of environments per agent	20
Maximum number of pages per flow	250
Maximum number of route groups per flow	100
Maximum number of versions per flow	20
Maximum number of referenced intents per flow	2000
Maximum number of training phrases per intent and per language (except "Default Negative Intent")	2000
Maximum number of parameters per intent	20
Maximum number of entity entries per entity	30,000
Maximum number of entity synonyms per entity entry	200
Maximum number of entity reference values and synonyms per agent and per language	1,000,000
Maximum number of parameters per page	20
Maximum number of routes per page	2000
Maximum number of event handlers per page	100
Maximum number of routes per route group	2000

ES Agent

Description	Limit
Maximum number of agents per region and per Google Cloud project	1
Maximum number of intents	2000
Maximum number of entity types	250
Maximum number of training phrases per intent and per language *	2000
Maximum number of training phrases per agent and per language *	100,000
Maximum number of entity entries	30000
Maximum number of entity synonyms per entity entry	200
Maximum number of entity reference values and synonyms per agent and per language *	1,000,000
Maximum number of parameters per intent	20
Maximum number of input contexts per intent	5
Maximum number of output contexts per intent	30
Maximum number of text responses per intent and per language *	30
Maximum number of prompts per parameter and per language †	30

Duration limits

CX Agent

Description	Limit
Maximum timeout per webhook	30 seconds

ES Agent

Description	Limit
Maximum telephony call duration	3.5 hours

Length limits

CX Agent

Description	Limit
Maximum training phrase length	768 characters
Maximum text response length	4,000 characters
Maximum detect intent text input length	256 characters

ES Agent

Description	Limit
Minimum agent name length	1 character
Maximum agent name length	150 characters
Maximum agent description length	500 characters
Maximum intent name length	100 characters
Maximum entity type name length	30 characters
Maximum training phrase length	768 characters
Maximum action name length	250 characters
Maximum context name length	250 characters
Maximum entry value length	512 characters
Maximum parameter name length	30 characters
Maximum text response length	4000 characters
Maximum detect intent text input length *	256 characters
Maximum event name length	150 characters

Size limits

ES Agent

Description	Limit
Maximum agent size (unzipped content) for agent import/restore	50 MB

*	All limits related to intents that have a language component are validated on a per language basis. For example, if your agent supports English and French, an intent can have at most 2000 English training phrases and 2000 French training phrases.
†	For example, if your agent supports English and French, a parameter can have at most 30 English prompts and 30 French prompts.