| Document and Entity Information | Dec. 03, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 3, 2020 |
| Entity Registrant Name | Veritone, Inc. |
| Entity Central Index Key | 0001615165 |
| Entity File Number | 001-38093 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 47-1161641 |
| Entity Address, Address Line One | 575 Anton Boulevard |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Costa Mesa |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92626 |
| City Area Code | 888 |
| Local Phone Number | 507-1737 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Security 12b Title | Common Stock, par value $0.001 per share |
| Trading Symbol | VERI |
| Security Exchange Name | NASDAQ |
