From the source
Harvey added GPT-5.1 to its model selector across Assistant, Vault, and Workflow Builder, offering stronger reasoning, faster responses, and clearer outputs.
The platform also introduced new features including Harvey Guide in Assistant, @ Mention in Composer, integration with Gyldendal Rettsdata for Norwegian legal sources, new local knowledge sources for several jurisdictions, the ability to upload documents alongside Ask LexisNexis, table reading in documents, password-protected file uploads, and workflow enhancements such as embedding vaults and regional knowledge sources and optional steps.
