--- schema_version: "1" id: 8ba014d6e1c8d9756364ef001e7a8ae07a99599abae02caaf681aa4d25aded8b title: Einstein Copy Insights collection: admin version: current locale: en-us portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_anb_einstein_copy_insights.md canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_anb_einstein_copy_insights.htm&release=264.0.0&type=5 source_site: help.salesforce.com content_type: documentation content_hash: d6597355318519081540e49ce2ff620776f86fb212ce2a55894183dd4b94678a description: Einstein Copy Insights uses text analytics and natural language processing to analyze the text from your commercial email subject lines to uncover language insights. Use these insights to craft subject lines and body copy that drive stronger email engagement. products: - Marketing - Marketing Cloud Intelligence release: "264" --- # Einstein Copy Insights Einstein Copy Insights uses text analytics and natural language processing to analyze the text from your commercial email subject lines to uncover language insights. Use these insights to craft subject lines and body copy that drive stronger email engagement. With the performance tester, you can find out how your subject line is likely to affect a message’s engagement rate by comparing it to past subject lines and their engagement rates. You can evaluate a single subject line or compare up to 10 subject lines. Enable Einstein generative AI to generate, iterate on, test, copy, and download subject lines and body copy in Einstein Copy Insights. Use this feature as a planning tool or whiteboard to brainstorm with your team. You can also create subject lines and body copy directly in Content Builder using generative AI. In Einstein Copy Insights setup, you can export generative AI data to support your safety compliance efforts. Export comprehensive audits of the past 90 days of generative AI content, including inputs, outputs, and user feedback. Review the audit to ensure alignment with your brand guidelines and consistency across all AI-generated content. ## Considerations Keep these considerations in mind when using Einstein Copy Insights. **Analytics** - Einstein Copy Insights assesses a 90-day rolling window of email engagement data to produce insights. - Einstein Copy Insights are updated one time each week. - Insights are based on email engagement rates. - To populate the model, Einstein Copy Insights requires at least 10 different subject lines sent to at least 30 subscribers within a 30-day period. All 10 subject lines must contain the same two- or three-word phrase, for example, “great deal” or “great deal today.” **Subject Line Tester** - Einstein Copy Insights assesses a 90-day rolling window of email engagement data to produce insights. - The subject line tester requires at least 10 different subject lines sent to at least 30 subscribers within a 30-day period. All 10 subject lines must contain the same two- or three-word phrase, for example, “great deal” or “great deal today.” - To use subject line tester, you must opt in to Global Models. [Learn more](https://help.salesforce.com/s/articleView?id=mktg.mc_anb_einstein_sto_global_data_model.htm&release=264.0.0&type=5 "Einstein intelligence is built on data. The more data Einstein has, the more powerful the resulting predictions. Most organizations don’t have enough data to build their own models. To give you more meaningful predictive AI, Salesforce builds global predictive models that scan for aggregate, anonymous trends across many Salesforce customers. To protect your customer data, your account is opted out of the global data model by default.") **Generative AI** - You can generate subject lines and body copy in English, French, German, Italian, Japanese, Portuguese, and Spanish. - Generative AI insights are available only in English. - To use Einstein generative AI features in Marketing Cloud Engagement, enable it in Einstein Copy Insights Setup. - **[Set Up Einstein Copy Insights](https://help.salesforce.com/s/articleView?id=mktg.mc_anb_set_up_einstein_copy_insights.htm&release=264.0.0&type=5)** When you enable Einstein Copy Insights, all users in the business unit can view the insights. You can also use Einstein generative AI features in Marketing Cloud Engagement. Einstein generative AI isn’t enabled by default, even if Einstein Copy Insights is turned on. You can disable Einstein Copy Insights at any time. - **[View Einstein Copy Insights](https://help.salesforce.com/s/articleView?id=mktg.mc_anb_view_einstein_copy_insights.htm&release=264.0.0&type=5)** To review insights and find the word and phrase combinations that drive better email engagement, navigate to the insights hub. - **[Subject Line Groups](https://help.salesforce.com/s/articleView?id=mktg.mc_anb_einstein_copy_insights_subject_line_groups.htm&release=264.0.0&type=5)** Einstein analyzes most of your commercial subject lines in order to detect and surface interesting insights and patterns in the language that you use. - **[Einstein Subject Line Tester Model Card](https://help.salesforce.com/s/articleView?id=mktg.mc_anb_einstein_subject_line_tester_model_card.htm&release=264.0.0&type=5)** The model in this card analyzes and evaluates contact engagement based on email subject lines. - **[Subject Line Tester](https://help.salesforce.com/s/articleView?id=mktg.mc_anb_einstein_subject_line_tester.htm&release=264.0.0&type=5)** Find out how your message’s subject line is likely to influence message performance. Test the performance of a single message or compare up to 10 subject lines. The subject line tester is available only if you opt in to global models. Subject line tester won't appear on the dashboard if global models aren't enabled. You can also use the tester to analyze subject lines generated in Einstein Copy Insights if you have Einstein generative AI features and global models enabled. - **[Creating Content in Einstein Copy Insights Using Einstein Generative AI](https://help.salesforce.com/s/articleView?id=mktg.mc_anb_einstein_genai_in_eci.htm&release=264.0.0&type=5)** Use Einstein to generate subject lines and body copy in messages. Test the likelihood of subject line success, and ideate and iterate with colleagues to land on the perfect message content in your preferred language.