--- sourceDocument: yokohama Combined Product Files sourceDocumentLink: https://www.servicenow.com/docs/r/yokohama/delta-xanadu-yokohama Release : - yokohama ft:locale : - en-US ft:publication_title : - yokohama Combined Product Files ft:clusterId : - delta3yx bundleId : - delta3yx --- # Combined Generative AI Controller release notes for upgrades from Xanadu to Yokohama # Combined Generative AI Controller release notes for upgrades from Xanadu to Yokohama {#ariaid-title1} Release version: Yokohama Updated October 8, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 7 minutes to read Summarize ![AI sparkle icon](https://servicenow.com/docs/portal-asset/ai-sparkle-icon) Summarized using AI This content was generated using new OpenAI-powered functionality. Results are provided on an as is basis and are not guaranteed to be accurate or complete. ## Summary of Combined Generative AI Controller release notes for upgrades from Xanadu to Yokohama This document consolidates the release notes for the Generative AI Controller across releases from Xanadu to Yokohama, helping ServiceNow customers understand new features, changes, and upgrade considerations. The Generative AI Controller is included and updated automatically when installing or upgrading any Now Assist application. This ensures seamless integration of generative AI capabilities within your ServiceNow environment. Show full answer Show less ## Key Features * **Metadata Logging and Language Support:** Introduction of a metadata log table capturing conversation details, feedback, and error codes. Enhanced language support with Dynamic Translation and logging of translated text improves usability for multilingual Now Assist users. * **Global Model Selection:** Now Assist Administrators can globally choose between GPT-4.0 and Now Assist LLM models, allowing compliance with regional restrictions and addressing limitations faced by users in specific geographies like APAC. * **Azure OpenAI Integration:** Support for configuring custom resource paths in Bring Your Own Key (BYOK) setups to connect the Generative AI Controller with Azure OpenAI deployments that include non-default endpoint paths. * **Administrative Access and AI Asset Management:** Administrators gain access to detailed Gen AI logs for debugging (with HR records restricted). Enhanced AI asset inventory tracking via AI Control Tower improves visibility into model lifecycle, including retirement dates. * **AI Model Version Mapping and Third-Party LLM Identification:** Tables now provide mappings between AI model versions, providers, and associated metadata, enabling better management and identification of LLM usage and characteristics. * **Domain-Based LLM Usage Control:** Ability to enable or disable Now Assist per domain to restrict LLM data processing as needed, offering greater control over AI usage within your organization. * **Access Control for AI Agents and Workflows:** ACLs can be configured to control discovery and execution of AI agents and agentic workflows, determining user visibility and operational modes (dynamic user vs. AI user) through AI Agent Studio. * **Data Privacy Enhancements:** Transition from Sensitive Data Handler to the Data Privacy application for anonymizing personally identifiable information (PII), with new configuration tables and forms for administrators to control anonymization policies. ## Key Changes * **Prompt Updates:** Improved prompts for all core capabilities (Generic Prompt, Generate Content, Summarization, Sentiment Analysis) and semantic filtering enhance processing efficiency and AI response quality. * **Now Assist Usage Measurement:** Transition from a 365-day look-back to a 365-day burn-down model for usage measurement, resetting at the contract anniversary, impacting how consumption is tracked and reported. * **Default Enablement of Skills:** For new customers, certain Now Assist skills are enabled by default upon installation. Existing customers upgrading to Yokohama Patch 11 will have any previously unconfigured skills automatically enabled, while skills explicitly turned off remain inactive. * **Removal of Sensitive Data Handler Dependency:** Sensitive Data Handler is deprecated and replaced by the Data Privacy application, with migration of regular expressions via fix scripts during upgrade. ## Upgrade and Activation Guidance * The Generative AI Controller is activated automatically with any Now Assist application installation or upgrade. * Pre- and post-upgrade tasks should be reviewed and completed to ensure smooth transition to Yokohama, including verifying Data Privacy configurations and AI asset inventory management. * If installation or update issues arise, customers should consult the specified knowledge article or open a Support case for assistance. ## Additional Information * **Localization:** Dynamic Translation leverages Microsoft Azure OEM for multi-language support and can be enabled via the AI Admin Hub. * **Security and Compliance:** Access to sensitive HR-related logs remains restricted to HR administrators, maintaining compliance with privacy standards. * **Browser and Accessibility:** No changes to browser requirements or accessibility compliance were introduced between Xanadu and Yokohama releases. Consolidated page of all release notes for Generative AI Controller from Xanadu to Yokohama. ## How to use this page To help you prepare for your upgrade, we have combined the cross-family Generative AI Controller release notes onto one page. Read this summary of the new features, changes, and updated information for your product from Xanadu to Yokohama. Tip: If there were no updates for a release notes section in a certain family release, we included a short note for your reference. For example, if a product did not have any updates in Tokyo, the row says "No updates for this release." ## Important information for upgrading Generative AI Controller to Yokohama Before you upgrade to Yokohama, review these pre- and post-upgrade tasks and complete the tasks as needed. {#dfrn3-generativeaicontroller-summary__entry__2} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | Upgrade information : Generative AI Controller is installed and updated when you install or update any Now Assist application. If you have issues installing or updating applications, see this [knowledge article](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1637452) for steps that may address your issue. Otherwise, you can make a Support case. | [ ] ## New features Between your current release family and Yokohama, new features were introduced for Generative AI Controller. {#dfrn3-generativeaicontroller-summary__entry__8} | Release | Release notes | |-|-| | Xanadu | **[Xanadu Patch 3](https://www.servicenow.com/docs/access?context=xanadu-patch-3&family=xanadu&ft:locale=en-US)** [Metadata log table for generative AI requests](https://www.servicenow.com/docs/access?context=reference-for-generative-ai-controller&family=xanadu&ft:locale=en-US) : Use the new metadata log table that includes information about the requesting conversation, the capability definition, provided feedback (if any), and error codes. [Translation for Now Assist](https://www.servicenow.com/docs/access?context=translation-for-now-assist&family=xanadu&ft:locale=en-US) : Support users who speak different languages with new language information in LLM request metadata, better controls for Dynamic Translation, and translated text logging. **[Xanadu Patch 7](https://www.servicenow.com/docs/access?context=xanadu-patch-7&family=xanadu&ft:locale=en-US)** Global Model selection for conversational skills : Enable Now Assist Admins to choose between GPT4.o and Now Assist LLM model for data routing at a global level. This ensures compliance with any regional restrictions and helpful for APAC users who may face limitations with US-based models, such as GPT-4.0. | | Yokohama | [\[Placeholder link text to key configure-custom-resource-path-byok\]](https://www.servicenow.com/docs/access?context=configure-custom-resource-path-byok&family=yokohama&ft:locale=en-US) : Connect Generative AI Controller to your Azure OpenAI deployment by configuring a custom resource path in your bring your own key (BYOK) model configuration. Use this when your Azure OpenAI endpoint includes a path segment that Generative AI Controller does not add by default. [Administrator access to Gen AI log](https://www.servicenow.com/docs/access?context=reference-for-generative-ai-controller&family=yokohama&ft:locale=en-US) : Access the Gen AI log \[sys_generative_ai_log\] table to gain insights for debugging purposes. Records related to HR remain restricted to HR admins. [Enhanced AI asset inventory](https://www.servicenow.com/docs/access?context=reference-for-generative-ai-controller&family=yokohama&ft:locale=en-US) : Track the enhanced AI asset inventory through AI Control Tower using new metadata fields in the Model \[sys_generative_ai_model_config\] and Prompt \[sys_generative_ai_config\] tables. Gain better visibility into AI asset status and life-cycle details, such as retirement dates. [AI Model Version Mappings](https://www.servicenow.com/docs/access?context=reference-for-generative-ai-controller&family=yokohama&ft:locale=en-US) : Review the mappings between AI model versions, their providers in the Gen AI Model Version Mapping \[sys_gen_ai_model_version_mapping\] table. It shows mapping between source and target models, along with associated metadata, such as skill type, model type, resource associations, and provider information. [Identify third-party LLM information](https://www.servicenow.com/docs/access?context=reference-for-generative-ai-controller&family=yokohama&ft:locale=en-US) : Access the Gen AI Log Metadata \[sys_gen_ai_log_metadata\] table to identify which LLM model, version, and requested language was used to generate the AI content. [Restrict LLM usage based on the domain](https://www.servicenow.com/docs/access?context=generative-ai-controller-rn&family=yokohama&ft:locale=en-US) : Enable or disable Now Assist for each domain so that you can restrict the use of LLMs and avoid using AI for data processing, if needed. [Global Model selection for conversational skills](https://www.servicenow.com/docs/access?context=manage-large-language-models&family=yokohama&ft:locale=en-US) : Enable Now Assist Admins to choose between GPT4.o and Now Assist LLM model for data routing at a global level. This ensures compliance with any regional restrictions and helpful for APAC users who may face limitations with US-based models, such as GPT-4.0. | [ ] ## Changes Between your current release family and Yokohama, some changes were made to existing Generative AI Controller features. {#dfrn3-generativeaicontroller-summary__entry__14} | Release | Release notes | |-|-| | Xanadu | [Directions for generative AI updates for Generative AI Controller](https://www.servicenow.com/docs/access?context=reference-for-generative-ai-controller&family=xanadu&ft:locale=en-US) : The prompts, which are the instructions to the large language model (LLM), for all four capabilities (Generic Prompt, Generate Content, Summarization, and Sentiment Analysis), semantic filtering, and recursive summarization have been updated. | | Yokohama | [Changes to Now Assist usage measurement](https://www.servicenow.com/docs/access?context=monitoring-now-assist-usage&family=yokohama&ft:locale=en-US) : Starting with Yokohama Patch 5, Now Assist usage measurement is transitioning from a 365-day look-back model to a 365-day burn-down model, with usage resetting at the contract anniversary date. For more information, refer to [KB KB2704710: Now Assist Usage - Overview \& New Measurement Logic](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2704710). [Some Now Assist skills are turned on by default](https://www.servicenow.com/docs/access?context=now-assist-skills-on-by-default&family=yokohama&ft:locale=en-US) : The new default behavior works as follows: * New customers: When you install a Now Assist product, designated skills are turned on automatically. * Existing customers who are upgrading (starting with Yokohama Patch 11): Any previously unconfigured skill is turned on automatically (the skill was never configured and turned on, then turned off again). Previously configured skills that were turned on, then off, remain inactive. [Configure ACLs for AI agents and agentic workflows](https://www.servicenow.com/docs/access?context=aia-security-implementation&family=yokohama&ft:locale=en-US) : Configure the access control lists for who can discover and trigger AI agents and agentic workflows in their guided setups in AI Agent Studio. You can determine whether an AI agent or agentic workflow behaves as a dynamic user or as an AI user. You can also specify if an AI agent or agentic workflow can be available to all authenticated users or publicly available. [Configure Data Privacy and Data Discovery to protect the personally identifying information (PII) of your users.](https://www.servicenow.com/docs/access?context=configure-now-assist-data-privacy&family=yokohama&ft:locale=en-US) : Generative AI Controller has changed to use the Data Privacy application instead of the Sensitive Data Handler to help anonymize PII. The process for choosing what gets anonymized and how has shifted to different tables and forms that your administrator must configure for your organization. | [ ] ## Removed Between your current release family and Yokohama, some Generative AI Controller features or functionality were removed. {#dfrn3-generativeaicontroller-summary__entry__20} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Deprecations Between your current release family and Yokohama, some Generative AI Controller features or functionality were deprecated. {#dfrn3-generativeaicontroller-summary__entry__26} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | The dependency on Sensitive Data Handler has been removed. Regular expressions that are configured with Sensitive Data Handler are applied to the Data Privacy application with a fix script when you upgrade to Yokohama. | [ ] ## Activation information Review information on how to activate Generative AI Controller. {#dfrn3-generativeaicontroller-summary__entry__32} | Release | Release notes | |-|-| | Xanadu | Generative AI Controller is a ServiceNow AI Platform feature that is available with activation of any ServiceNow® Now Assist application. For details, see [Installing Generative AI Controller](https://www.servicenow.com/docs/access?context=installing-generative-ai-controller&family=xanadu&ft:locale=en-US). | | Yokohama | Activation information : Generative AI Controller is a ServiceNow AI Platform feature that is available with activation of a Now Assist application. For details, see [Installing Generative AI Controller](https://www.servicenow.com/docs/access?context=installing-generative-ai-controller&family=yokohama&ft:locale=en-US) and [Install Now Assist plugins](https://www.servicenow.com/docs/access?context=install-now-assist-feature-plugins&family=yokohama&ft:locale=en-US). Important: Generative AI Controller is available in the ServiceNow Store. For details, see the "Activation information" section of these release notes. | [ ] ## Additional requirements If any additional requirements were introduced or changed for Generative AI Controller we have noted them here. {#dfrn3-generativeaicontroller-summary__entry__38} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Browser requirements If any specific browser requirements were introduced or changed for Generative AI Controller we have noted them here. {#dfrn3-generativeaicontroller-summary__entry__44} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Accessibility information Review details on accessibility information for Generative AI Controller, such as specific requirements or compliance levels. {#dfrn3-generativeaicontroller-summary__entry__50} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | [ ] ## Localization information If there are specific localization considerations for Generative AI Controller we have noted them here. {#dfrn3-generativeaicontroller-summary__entry__56} | Release | Release notes | |-|-| | Xanadu | Generative AI Controller uses [Microsoft Azure OEM for Dynamic Translation in Now Assist](https://www.servicenow.com/docs/access?context=dynamic-translation-na-ms-azure-oem&family=xanadu&ft:locale=en-US) for multi-language support. You can enable dynamic translation from the AI Admin Hub console. | | Yokohama | No updates for this release. | [ ] ## Highlight information If there are specific highlight considerations for Generative AI Controller we have noted them here. {#dfrn3-generativeaicontroller-summary__entry__62} | Release | Release notes | |-|-| | Xanadu | Xanadu Patch 3 * Review a read-only metadata log table for generative AI requests. * Use the improved language support for skills and capabilities, including the Dynamic Translation services and native translation by the LLMs. Xanadu Patch 1 * Updated prompts for capabilities, semantic filtering, and recursive summarization that improve latency and processing for Generative AI Controller capabilities and Now Assist skills. See [Generative AI Controller](https://www.servicenow.com/docs/access?context=generative-ai-controller&family=xanadu&ft:locale=en-US) for more information. | | Yokohama | [Yokohama Patch 11](https://www.servicenow.com/docs/access?context=yokohama-patch-11&family=yokohama&ft:locale=en-US) * Review changes to Now Assist usage measurement. * Some Now Assist skills, agents, and agentic workflows are on by default. * Additional role configuration is required for agentic workflows and AI agents included with Now Assist applications. Previous Patch releases * Protect your users by configuring settings for anonymization of personally identifiable information (PII) with the Data Privacy application. See [Generative AI Controller](https://www.servicenow.com/docs/access?context=generative-ai-controller&family=yokohama&ft:locale=en-US) for more information. | [ ]