A method implemented by one or more processors, the method comprising: receiving, when an entry field of a graphical user interface of a first application is being rendered at a computing device, a spoken utterance from a user, the method is characterised in that the computing device provides access to an automated assistant that is separate from the first application and utilizes one or more speech-to-text models stored at the computing device; generating, based on the spoken utterance, a candidate text string that characterizes at least a portion of the spoken utterance provided by the user, wherein the candidate text string is generated using the one or more speech-to-text models stored at the computing device; determining, by the automated assistant and based on the candidate text string, whether to consider any particular portion of the candidate text string as invoking a particular assistant operation that is different from an operation of incorporating a particular portion of the candidate text string into the entry field and different from another operation of incorporating additional content into the entry field, wherein the particular assistant operation comprises interacting with a second application based on the candidate text string, wherein the second application is installed on the computing device; when a determination is made to consider the particular portion of the candidate text string as invoking the particular assistant operation: causing the automated assistant to perform the particular assistant operation based at least on the particular portion of the candidate text string; and when a determination is made to consider the particular portion of the candidate text string as not invoking the particular assistant operation: determining, by the automated assistant and based on the particular portion of the candidate text string, whether to incorporate the particular portion of the candidate text string into the entry field or incorporate the additional content into the entry field, and causing, based on determining whether to incorporate the particular portion of the candidate text string into the entry field or incorporate the additional content into the entry field, the particular portion of the candidate text string or the additional content to be provided as input to the entry field of the graphical user interface. receiving, when an entry field of a graphical user interface of a first application is being rendered at a computing device, a spoken utterance from a user, the method is characterised in that the computing device provides access to an automated assistant that is separate from the first application and utilizes one or more speech-to-text models stored at the computing device; the method is characterised in that the computing device provides access to an automated assistant that is separate from the first application and utilizes one or more speech-to-text models stored at the computing device; generating, based on the spoken utterance, a candidate text string that characterizes at least a portion of the spoken utterance provided by the user, wherein the candidate text string is generated using the one or more speech-to-text models stored at the computing device; least a portion of the spoken utterance provided by the user, wherein the candidate text string is generated using the one or more speech-to-text models stored at the computing device; determining, by the automated assistant and based on the candidate text string, whether to consider any particular portion of the candidate text string as invoking a particular assistant operation that is different from an operation of incorporating a particular portion of the candidate text string into the entry field and different from another operation of incorporating additional content into the entry field, wherein the particular assistant operation comprises interacting with a second application based on the candidate text string, wherein the second application is installed on the computing device; when a determination is made to consider the particular portion of the candidate text string as invoking the particular assistant operation: causing the automated assistant to perform the particular assistant operation based at least on the particular portion of the candidate text string; and when a determination is made to consider the particular portion of the candidate text string as not invoking the particular assistant operation: determining, by the automated assistant and based on the particular portion of the candidate text string, whether to incorporate the particular portion of the candidate text string into the entry field or incorporate the additional content into the entry field, and causing, based on determining whether to incorporate the particular portion of the candidate text string into the entry field or incorporate the additional content into the entry field, the particular portion of the candidate text string or the additional content to be provided as input to the entry field of the graphical user interface. determining, by the automated assistant and based on the particular portion of the candidate text string, whether to incorporate the particular portion of the candidate text string into the entry field or incorporate the additional content into the entry field, and causing, based on determining whether to incorporate the particular portion of the candidate text string into the entry field or incorporate the additional content into the entry field, the particular portion of the candidate text string or the additional content to be provided as input to the entry field of the graphical user interface.