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Thumbnail AI prompts you can use right away to create hero images that show the click point of a video or piece of content. Quickly create Shorts covers, social thumbnails, and content hero images.

2026.05.22

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AI-generated Idol Fancam Thumbnail made with GPT Image 2

Idol Fancam Thumbnail

GPT Image 2· Image
가상의 아이돌 직캠 썸네일을 만들어줘. 실제 아이돌이나 기존 그룹은 사용하지 말고, 무대 위 역동적인 댄스 포즈, LED 배경, 선명한 콘서트 조명, 현실적인 무대 사진 느낌으로 구성해줘. 한글 카피 '레전드 직캠'이 잘 읽히게 넣고, 과한 채도나 스티커 남발은 피해야 해.
AI-generated Daily Vlog Thumbnail made with GPT Image 2

Daily Vlog Thumbnail

GPT Image 2· Image
일상 브이로그용 썸네일을 만들어줘. 정돈된 침대, 커피잔과 책, 햇살이 들어오는 작은 책상을 3컷 사진 콜라주로 배치하고, 여백을 많이 둔 차분한 구성으로 만들어줘. 한글 제목 '느린 일요일'은 작고 감성적인 폰트로 넣어줘. 크림 톤, 자연스러운 그림자, 실제 생활 사진 질감을 살리고, 과한 색감/스티커/AI 같은 인물은 넣지 마.
AI-generated Gaming Video Thumbnail made with GPT Image 2

Gaming Video Thumbnail

GPT Image 2· Image
게임 영상용 썸네일을 만들어줘. 큰 한글 카피 '역대급 반전'이 잘 읽히게 넣고, 극적인 게임 캐릭터 실루엣, 폭발적인 레드/퍼플 배경, 놀란 스트리머 얼굴 컷아웃, 굵은 코믹 스타일 타이포와 빛나는 외곽선을 활용해 클릭률 높은 16:9 썸네일로 구성해줘.
AI-generated Finance Explainer Thumbnail made with GPT Image 2

Finance Explainer Thumbnail

GPT Image 2· Image
경제/재테크 정보 영상용 썸네일을 만들어줘. 큰 한글 카피 '월급 관리 공식'이 잘 읽히게 넣고, 돈 아이콘, 계산기, 상승 그래프, 자신감 있는 발표자 컷아웃, 네이비와 라임 포인트 컬러를 활용해서 신뢰감 있으면서도 클릭하고 싶은 16:9 썸네일로 구성해줘.
Example image of Celestial Train Station in the Clouds generated with Nano Banana Pro

Celestial Train Station in the Clouds

NanoBanana Pro· Image
{"scene_description":"A surreal, monumental wide shot of a celestial railway station suspended in the clouds, featuring a transparent glass train on golden rails.","subject":{"type":"Futuristic Steam Train","features":{"material":"solid carved crystal and glass chassis","details":"intricate gold filigree gears, visible internal mechanics","wagons":"translucent compartments filled with soft warm light"},"attire":"N/A","position":"gliding smoothly along a curving white marble viaduct"},"action":{"primary":"traveling through the sky","secondary":"emitting steam that turns into actual clouds","effect":"refracting sunlight through the glass train body"},"environment":{"setting":"High-altitude cloudscape","foreground_elements":["Monumental Corinthian columns supporting the tracks","Polished white marble platform with tiny passengers for scale","Golden railings"],"background_elements":["The track spiraling upwards towards a pale visible moon","Miniature cities far below in the valley gap."]},"lighting":{"style":"Magical Golden Hour","key_light":{"type":"Low sun","color":"Warm amber/gold","illuminates":["The gold tracks","The edges of the glass train","The marble texture"]},"shadows":"Long, dramatic shadows cast by the columns onto the clouds"},"style":{"medium":"3D Conceptual Art","aesthetic":"Neo-Classical Sci-Fi, Surrealism","quality":"8k resolution, hyper-detailed","details":"architectural precision, atmospheric depth"},"scene_composition":{"subject_action":"Train moving away from camera around a bend","camera_behavior":"Drone shot, high angle, vertigo-inducing","depth_layering":"Sharp foreground railing -> Glass Train -> Hazy distant world"},"camera_and_lens":{"focal_length_feel":"14mm Ultra-Wide","aperture_effect":"Deep depth of field (f/11)","camera_angle":"High-angle looking down into the abyss","lens_type":"Rectilinear","bokeh_style":"None"}}
@_MehdiSharifi_
AI-generated Travel Vlog Thumbnail made with GPT Image 2

Travel Vlog Thumbnail

GPT Image 2· Image
여행 브이로그용 썸네일을 만들어줘. 얇은 흰 여백이 있는 4컷 사진 콜라주 구성으로, 차창 밖 해안도로, 푸른 바다, 호텔방 캐리어, 뒷모습 여행자 컷을 배치해줘. 한글 제목 '제주 2박 3일'은 크지 않게 깔끔한 산세리프 폰트로 넣어줘. 실제 스마트폰/미러리스 사진처럼 자연광과 현실적인 색감으로 만들고, 과한 노란 보정이나 스티커, AI 같은 얼굴은 피해야 해.
Example image of Weekend Photo Dump Nine Grid generated with Nano Banana Pro

Weekend Photo Dump Nine Grid

NanoBanana Pro· Image
Generate a 9-image ‘photo dump’ grid of this person’s weekend: a mirror selfie, a café shot, friends at dinner, a blurry party photo, a walking shot, a laptop/coffee work shot, a pet moment, a sunset, and a candid laugh.
@imaxichuhai
AI-generated Mukbang Thumbnail made with GPT Image 2

Mukbang Thumbnail

GPT Image 2· Image
먹방 영상용 썸네일을 만들어줘. 큰 한글 카피 '이 조합 미쳤다'가 잘 읽히게 넣고, 매콤한 떡볶이와 치킨 클로즈업, 신난 표정의 인물, 레드/오렌지 계열의 먹음직스러운 색감, 김이 나는 효과, 굵은 흰색/노란색 타이포를 활용해 16:9 썸네일로 구성해줘.
AI-generated Korean Webtoon-style Summer Romance Promotional Thumbnail made with GPT Image 2

Korean Webtoon-style Summer Romance Promotional Thumbnail

GPT Image 2· Image
Korean webtoon-style summer romance promotional thumbnail. Left: tall Korean male in white linen shirt, Han River sunset. Right: Korean female in floral sundress, convenience store background. Center: glowing heart with Korean text '이번 여름, 고백은 선착순'. Top banner: '웹툰 신작'. Vibrant saturated summer K-drama aesthetic.
@himukai_an
AI-generated Vertical 9:16 TikTok-style GRWM Beauty Thumbnail Set in a Warm made with GPT Image 2

Vertical 9:16 TikTok-style GRWM Beauty Thumbnail Set in a Warm

GPT Image 2· Image
A vertical 9:16 TikTok-style GRWM beauty thumbnail set in a warm, sunlit Mediterranean-inspired bedroom. A stylish young woman with {argument name="hair color" default="dark brown"} hair in a messy curly updo sits at a marble vanity, leaning forward with one arm folded and the other hand applying lip balm or lipstick to her mouth. Her face is covered by a centered rectangular blur block for privacy, but the rest of her styling is elegant and natural: tan glowing skin, delicate gold necklace with a small round pendant, thin gold bracelet, stacked gold rings, and a white lace camisole with thin straps. In the foreground on the vanity are exactly 7 visible beauty objects: 1 round tabletop vanity mirror on the left, 1 cup holding 5 makeup brushes, 1 clear glass dropper bottle, 1 tall white pump skincare bottle, 1 small black dropper bottle, 1 beige rounded cosmetic sponge or puff, and 1 pale green squeeze tube on the right. The background shows a softly blurred cozy bedroom with 1 arched window on the left, 1 leafy potted plant, 1 bed with white bedding and a mustard accent pillow, exposed wooden ceiling detail, and 1 framed landscape painting on the wall. Use golden-hour sunlight streaming from the left, soft shadows, creamy skin tones, shallow depth of field, luxury lifestyle editorial photography, intimate self-care mood, polished but natural composition. Add bold playful Spanish headline text in the upper left in three stacked lines reading {argument name="headline text" default="Mi rutina de belleza matutina"}, with each line large and rounded, white outline and soft drop shadow, using pastel colors: first line white, second line pink, third line pale yellow. Add 3 pink doodle accent strokes above the headline, 1 curved pink underline-swoosh beneath it, and 1 small yellow sun icon to the right of the last line. Place a clean white {argument name="brand text" default="Pollo.ai"} logo in the upper right. High-end influencer thumbnail aesthetic, crisp product focus in foreground, warm inviting lifestyle scene.
@S0N_IA_
AI-generated Vibrant Anime-style YouTube Thumbnail for a Livestream Gaming Broadcast made with GPT Image 2

Vibrant Anime-style YouTube Thumbnail for a Livestream Gaming Broadcast

GPT Image 2· Image
A vibrant anime-style YouTube thumbnail for a livestream gaming broadcast, in a wide 16:9 composition, with a neon purple and pink streamer room. Center the scene on a cute catgirl VTuber sitting at a desk, shown from the waist up, leaning forward energetically with one hand on a computer mouse and the other hand reaching toward the viewer. She has {argument name="hair color" default="light orange-blonde"} bob-cut hair with soft bangs, fluffy brown-and-cream cat ears, and a visible cat tail. Her face is intentionally obscured by a solid rectangular censor block in the center. She wears a black-and-white maid-inspired outfit with a frilly white blouse, black dress bodice, puff sleeves, white ruffles, black ribbon bow, and a gold bell choker. Place a mechanical keyboard with bright RGB lighting on the desk, a glowing gaming mouse, and a streamer microphone on the far left with pink-purple LED lighting. Put 2 cat-themed desk items in the foreground: a plush cat face on the bottom left and a black cat-shaped mug on the bottom right. Behind her is a gaming chair with paw-print details. On the left side, add large bold Korean headline text in thick white block letters with black fill shadows and a glowing purple outline, stacked in 2 lines: {argument name="headline text" default="방송중 대참사"}. Below it, add a smaller yellow comic-style burst caption with black outline reading {argument name="sub text" default="> 크리퍼 실화냐"}. On the right side, show 1 large computer monitor angled inward, displaying a Minecraft-like scene with bright blue sky, green trees, water, and a large green Creeper popping out toward the viewer, outlined dramatically like a sticker cutout. Add starburst effects and neon accents around the monitor to heighten the chaos. Use exaggerated thumbnail aesthetics: ultra-saturated colors, sharp cel shading, thick outlines, glossy highlights, high contrast, dynamic perspective, and a clickworthy streamer-disaster mood.
@rerxmsz06
AI-generated Bold Korean YouTube Thumbnail About AI Model Competition 2025, 16:9 made with GPT Image 2

Bold Korean YouTube Thumbnail About AI Model Competition 2025, 16:9

GPT Image 2· Image
Bold Korean YouTube thumbnail about AI model competition 2025, 16:9. Dark tech background with glowing Korean text. Three AI logos in dramatic VS battle format. Korean text: 'AI 전쟁 2025: 최강자는?' Lightning effects, cinematic Korean news aesthetic.
@MoveHiro1219

What Are Thumbnail AI Prompts?

Thumbnail prompts are AI prompts for quickly shaping hero images that show the click point of a video or piece of content. In Carat, you can generate images or video with models like GPT Image 2, then keep going with follow-up work such as editing the result, changing the aspect ratio, removing the background, upscaling, or converting to video.

Where You'll Use It

  • Shorts and Reels covers
  • Content hero images
  • Blog and news thumbnails
  • Before/after comparison images
  • Covers with a highlighted headline

Why This Tag Is Useful

Thumbnail work is less about simply making something that looks good and more about its intended use. A thumbnail is a small billboard that shows the content's promise at a glance. Making the topic, emotion, payoff, and contrast read fast helps it stand out in search results or a feed. When choosing a prompt, look first for examples that show the subject, composition, style, text placement, and intended channel.

Tips for Building Your Prompt

  1. Decide the channel and aspect ratio the result will be used in first.
  2. Spell out the key subject, background, lighting, and camera composition.
  3. If needed, separate out the brand name, product name, character traits, and color palette.
  4. After generating, check for text errors, logo accuracy, and likeness/copyright issues.

In Carat, once you run a prompt you can refine from the result you like, or continue with follow-up work like changing the aspect ratio, removing the background, upscaling, or converting to video.

Frequently Asked Questions

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