{"observation":{"id":"8c0a2025-1a9c-4901-bf4c-6a1dc599c348","tool":"heygen","tool_name":"HeyGen","criterion":"product-understanding","criterion_name":"Product understanding","criterion_definition":"Whether the tool gets the product right in features and positioning, rather than being generic or inaccurate.","criterion_evidence_type":"transformation","criterion_rank_role":"decisive","criterion_rank_role_reason":"An ad has to describe the product accurately and position it correctly; generic or wrong messaging breaks the output. (3 of 3 judges)","scenario":"duolingo-mobile-app","scenario_name":"Duolingo – Mobile App","group_tag":"ugc-style-video-ads","scenario_description":"A short-form UGC promo prompt for a consumer mobile app, designed to test whether the tool can explain app benefits simply and persuasively while generating a realistic AI-presenter video.","modality":"mixed","input_text":"Product URL: https://www.duolingo.com/\n\nExact script:\nHook: Learning a new language has never been this easy.\nScript: I've been using Duolingo for a few minutes every day, and it's made language learning simple and fun. The short lessons are easy to follow, and the daily practice keeps me motivated. If you're planning to learn a new language, give Duolingo a try.\n\nOutput requirements:\n- Vertical (9:16)\n- 20–30 seconds\n- UGC-style AI presenter\n- Natural AI voice\n- Captions enabled","input_artifact_refs":[],"stresses":["Mobile app understanding","Consumer app promotion","Script quality","Avatar realism","Voice quality","Caption quality","Overall ad readiness"],"verdict":"failed","score":null,"score_total":null,"note":"Product understanding breaks in the B-roll cutaway: the phone screen shows a shopping app ('NEW YORK BAG $219, ADD TO CART') instead of Duolingo or any language-learning interface.","evidence_state":"verified","source":null,"artifacts":[{"url":"https://cdn.futuresmart.ai/public/aidemos/61d417b345ad4d2ab66fb9eb41648b92.png?v=1","role":"context","alt":null},{"url":"https://cdn.futuresmart.ai/public/aidemos/e1595503067242cdbfafa0a9676f1a5a.mp4?v=1","role":"output","alt":null}],"run_id":"9fdbb84b-4aa0-484d-8f89-5c46608019a5","study_title":"Generate UGC-Style Video Ads With AI Avatars","study_kind":"generation","research_task":"86baxegpg","tested_at":null,"completeness":"input-and-output","input":{"state":"text","text":"Product URL: https://www.duolingo.com/\n\nExact script:\nHook: Learning a new language has never been this easy.\nScript: I've been using Duolingo for a few minutes every day, and it's made language learning simple and fun. The short lessons are easy to follow, and the daily practice keeps me motivated. If you're planning to learn a new language, give Duolingo a try.\n\nOutput requirements:\n- Vertical (9:16)\n- 20–30 seconds\n- UGC-style AI presenter\n- Natural AI voice\n- Captions enabled","files":[],"modality":"mixed","stresses":["Mobile app understanding","Consumer app promotion","Script quality","Avatar realism","Voice quality","Caption quality","Overall ad readiness"]},"tool_page_slug":"heygen","tool_url":"https://aidemos.com/tools/heygen","permalink":"https://aidemos.com/evidence/8c0a2025-1a9c-4901-bf4c-6a1dc599c348","api_url":"https://ai.aidemos.com/v1/observations/8c0a2025-1a9c-4901-bf4c-6a1dc599c348"},"peers":[{"id":"3c8c0c8a-13ae-40cf-ad1d-841db194a417","tool":"akool","tool_name":"AKOOL","verdict":"struggled","score":null,"score_total":null,"note":"Keeps the language-learning message simple, but the output stays generic and does not make Duolingo feel distinctive.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/ada242395b9642fdacde72d4547aafe9.mp4?v=1","evidence_url":"https://aidemos.com/evidence/3c8c0c8a-13ae-40cf-ad1d-841db194a417"},{"id":"946d7259-1754-4278-b787-f11518190bc8","tool":"creatify-ai","tool_name":"Creatify.ai","verdict":"mixed","score":null,"score_total":null,"note":"For the app input, the ad correctly sold language-learning convenience and daily practice, but the report says the background stayed generic and the Duolingo interface was not clearly shown.","artifact_count":2,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/c2f231a60b8e4009acd41c18a618c58f.mp4?v=1","evidence_url":"https://aidemos.com/evidence/946d7259-1754-4278-b787-f11518190bc8"},{"id":"7a6225f6-e4ba-40b5-b2f7-b5ee9a7ca9ba","tool":"invideo-ai","tool_name":"Invideo AI","verdict":"mixed","score":null,"score_total":null,"note":"The output gets the brand right in the outro card, but the mid-script phone b-roll is generic message-bubble UI rather than an actual Duolingo lesson screen, so product specificity is only partial.","artifact_count":4,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/fd4d673833fa40308e43c13b7b13815e.png?v=1","evidence_url":"https://aidemos.com/evidence/7a6225f6-e4ba-40b5-b2f7-b5ee9a7ca9ba"},{"id":"18b113d7-c45a-4545-84ab-834fcf4baa28","tool":"joggai","tool_name":"JoggAI","verdict":"failed","score":null,"score_total":null,"note":"For an app prompt, the tool can leave out the app completely and produce only an avatar talking to camera, with no screenshot, graphic, or in-video product reference.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/7091a0095a044c99ac097c9e36090b10.png?v=1","evidence_url":"https://aidemos.com/evidence/18b113d7-c45a-4545-84ab-834fcf4baa28"},{"id":"a4316236-44b9-465a-84f0-c9ab5bf6f6f0","tool":"vidnoz-ai","tool_name":"Vidnoz AI","verdict":"worked","score":null,"score_total":null,"note":"Understands a language-learning app well enough to position it around short lessons, daily practice, and simple, fun learning.","artifact_count":2,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/f25b8326c2154e5688b7d75b8d2dc085.mp4?v=1","evidence_url":"https://aidemos.com/evidence/a4316236-44b9-465a-84f0-c9ab5bf6f6f0"}],"other_criteria":[{"id":"9012a876-7dac-4276-89c3-aa9dc9ebcf9d","criterion":"avatar-realism","criterion_name":"Avatar realism","rank_role":"decisive","verdict":"worked","score":null,"score_total":null,"note":"The Duolingo output reads as a casual creator-style presenter rather than an AI-obvious stock avatar, with the report calling the setting genuinely UGC-authentic.","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/9012a876-7dac-4276-89c3-aa9dc9ebcf9d"},{"id":"1dd03c75-de2c-4a5b-99da-30920f49b10d","criterion":"b-roll-product-integration","criterion_name":"B-roll / product integration","rank_role":"decisive","verdict":"failed","score":null,"score_total":null,"note":"The supporting footage is not product-integrated because the cutaway uses the wrong app entirely, so the B-roll does not match the Duolingo testimonial being spoken.","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/1dd03c75-de2c-4a5b-99da-30920f49b10d"},{"id":"563c5021-098b-4a1f-b449-465d7e93d46c","criterion":"caption-quality","criterion_name":"Caption quality","rank_role":"decisive","verdict":"mixed","score":null,"score_total":null,"note":"Captions are present, but around 0:04-0:05 they overlap with a leftover badge graphic and become garbled, creating hard-to-read double-exposed text.","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/563c5021-098b-4a1f-b449-465d7e93d46c"},{"id":"7e43c5e4-07e8-4b3b-8141-9f792f225667","criterion":"platform-formats","criterion_name":"Platform formats","rank_role":"context","verdict":"worked","score":null,"score_total":null,"note":"This is the only run that delivers the requested full-bleed vertical 9:16 frame with no letterboxing.","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/7e43c5e4-07e8-4b3b-8141-9f792f225667"},{"id":"64e1c84b-48cc-4206-a23d-413108d746c3","criterion":"script-quality-persuasiveness","criterion_name":"Script quality & persuasiveness","rank_role":"decisive","verdict":"worked","score":null,"score_total":null,"note":"The script is delivered verbatim from start to finish and lands on a natural CTA, ending correctly on 'give Duolingo a try.'","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/64e1c84b-48cc-4206-a23d-413108d746c3"}],"appears_in":[{"page_type":"ranking","slug":"ugc-video-ad-generators","title":"Best AI Tools for Generating UGC-Style Video Ads With AI Avatars","url":"https://aidemos.com/best/ugc-video-ad-generators","binding":"run"}],"same_scenario":[{"id":"3c8c0c8a-13ae-40cf-ad1d-841db194a417","tool":"akool","tool_name":"AKOOL","verdict":"struggled","score":null,"score_total":null,"note":"Keeps the language-learning message simple, but the output stays generic and does not make Duolingo feel distinctive."},{"id":"946d7259-1754-4278-b787-f11518190bc8","tool":"creatify-ai","tool_name":"Creatify.ai","verdict":"mixed","score":null,"score_total":null,"note":"For the app input, the ad correctly sold language-learning convenience and daily practice, but the report says the background stayed generic and the Duolingo interface was not clearly shown."},{"id":"7a6225f6-e4ba-40b5-b2f7-b5ee9a7ca9ba","tool":"invideo-ai","tool_name":"Invideo AI","verdict":"mixed","score":null,"score_total":null,"note":"The output gets the brand right in the outro card, but the mid-script phone b-roll is generic message-bubble UI rather than an actual Duolingo lesson screen, so product specificity is only partial."},{"id":"18b113d7-c45a-4545-84ab-834fcf4baa28","tool":"joggai","tool_name":"JoggAI","verdict":"failed","score":null,"score_total":null,"note":"For an app prompt, the tool can leave out the app completely and produce only an avatar talking to camera, with no screenshot, graphic, or in-video product reference."},{"id":"a4316236-44b9-465a-84f0-c9ab5bf6f6f0","tool":"vidnoz-ai","tool_name":"Vidnoz AI","verdict":"worked","score":null,"score_total":null,"note":"Understands a language-learning app well enough to position it around short lessons, daily practice, and simple, fun learning."}]}