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Batch delivery went from 243 to 82 seconds
Both runs used the same three first frames, prompts, and settings. In the serial run, we completed and downloaded each clip before submitting the next. In the concurrent run, we submitted three independent image-to-video jobs together. All three clips returned successfully in each run.
| Shot | Serial completion time | Concurrent completion time | Displayed charge per call |
|---|---|---|---|
| Reading shot | 83.94 s | 75.95 s | $0.3529 |
| Phone lighting up | 65.56 s | 57.06 s | $0.3529 |
| Character looking up | 85.46 s | 77.83 s | $0.3529 |
Per-shot timing runs from submission to the first completed status observed by the client, with polling every eight seconds. Batch timing includes downloads. We ran one batch of three jobs per condition, with the serial run first. The results reflect these inputs and the service load at the time.
Scale concurrent batches without a plan upgrade
ModelGo enterprise video customers can submit concurrent jobs on their existing plan and pay per model call. When a deadline or multiple variants are due, teams can submit independent shots together and get footage into review sooner. Actual throughput depends on the model and upstream capacity.
Runway’s API, for example, sets concurrency by usage tier, with higher tiers tied to higher credit-purchase thresholds.
From AI storyboards and character references to image-to-video
In this late-night suspense scene, the lead character is reading when she receives a message from an unknown sender that reads “Don’t turn around.” She slowly looks up. The three shots share a character and setting, with the message added in post. Once the storyboard is ready, use Seedream 4.0 for references and first frames, then animate each shot with Kling 3.0.
Lock the character and setting
Prepare a character reference and a setting reference. Establish the hair, wardrobe, lamp, window, and phone placement, then approve the references before proceeding.
Generate the first frames
The reading shot uses both references. The phone and reaction shots reuse the reading shot’s first frame to carry through the character’s appearance and the room lighting.
Submit independent shots together
Give each shot its own first frame and action direction. Save each job ID, poll its status, and download the result. Start the batch once the required references are ready.
Images were 1440×2560. We requested five-second, 720p clips with native audio and automatic multi-shot mode disabled. All six outputs were 720×1280 at 24 fps and ran for about 5.042 seconds each.
Prompts for five image generations and three video shots
Character and setting references2 prompts
Character reference
English translation
Original 2D suspense motion comic, clean linework, cel shading, restrained expressions, cool blue night light against warm lamplight, vertical 9:16. A single character reference of a 25-year-old East Asian woman with straight, shoulder-length black hair parted in the middle, no bangs, dark brown eyes, a gray crew-neck sweater, and no jewelry. Front-facing half-body view with a calm expression, a plain light gray background, a clear face and outfit, and no text.Original prompt
原创二维悬疑漫剧,干净线稿,赛璐璐上色,克制的表情,冷蓝夜色与暖色台灯对比,9:16竖构图。单人角色参考图:25岁成年东亚女性,黑色齐肩直发,中分,无刘海,深棕眼睛,灰色圆领毛衣,无首饰。正面半身,表情平静,浅灰纯色背景,脸部和服装清晰,无文字。Setting reference
English translation
Original 2D suspense motion comic, clean linework, cel shading, restrained expressions, cool blue night light against warm lamplight, vertical 9:16. An empty study with a fixed layout. A light wood desk, warm lamp on the right, window with blue night light on the left, and bookshelf behind it. One black phone at the center of the desk, face up with its screen off. No text or other phones.Original prompt
原创二维悬疑漫剧,干净线稿,赛璐璐上色,克制的表情,冷蓝夜色与暖色台灯对比,9:16竖构图。无人小书房,固定空间布局:浅木书桌,桌面右侧暖色台灯,左侧窗户可见冷蓝夜色,后方书架。桌面中央一部黑色手机,屏幕朝上且关闭,无文字,无其他手机。Three shot first frames3 prompts
Reading shot first frame
References used: character and setting.
English translation
Original 2D suspense motion comic, clean linework, cel shading, restrained expressions, cool blue night light against warm lamplight, vertical 9:16. Reference 1 establishes the character, hairstyle, and clothing. Reference 2 establishes the study and desk layout. Keep the same character and room. A medium three-quarter view of the woman reading at the desk with her head slightly lowered. A black phone lies face up at the center of the desk with its screen off. The lamp on the right is on. Hold this simple starting pose. No text.Original prompt
原创二维悬疑漫剧,干净线稿,赛璐璐上色,克制的表情,冷蓝夜色与暖色台灯对比,9:16竖构图。参考图1提供人物身份、发型和衣服,参考图2提供书房与桌面布局。保持同一人物、同一书房。侧前方中景,人物坐在桌前安静看书,头略低,手机平放在桌面中央,屏幕朝上且关闭,右侧台灯亮着。保持简单动作的起始姿态,无文字。Phone shot first frame
References used: reading shot first frame and setting.
English translation
Original 2D suspense motion comic, clean linework, cel shading, restrained expressions, cool blue night light against warm lamplight, vertical 9:16. Use both references to keep the same light wood desk, black phone, lamp, and lighting. Close-up of the phone lying flat, face up with its screen off. Warm lamplight falls across the desk. No people, hands, or text. Keep the whole phone visible and leave room on the screen for a text overlay in post.Original prompt
原创二维悬疑漫剧,干净线稿,赛璐璐上色,克制的表情,冷蓝夜色与暖色台灯对比,9:16竖构图。参考两张图保持同一张浅木书桌、黑色手机、台灯与照明。手机屏幕的近景特写,手机保持平放,屏幕朝上且关闭;暖色台灯光落在桌面上。无人物、无手、无文字,手机形状完整,构图给屏幕留出后期文字空间。Reaction shot first frame
References used: character and reading shot first frame.
English translation
Original 2D suspense motion comic, clean linework, cel shading, restrained expressions, cool blue night light against warm lamplight, vertical 9:16. Reference 1 establishes the face, hair, and gray sweater. Reference 2 establishes the study, seated orientation, and lighting from both sides. Close-up of the character looking down at the desk, calm and with her mouth closed. Use this as the starting frame for her to slowly look up. No text.Original prompt
原创二维悬疑漫剧,干净线稿,赛璐璐上色,克制的表情,冷蓝夜色与暖色台灯对比,9:16竖构图。参考图1保持同一人物的脸、发型、灰色毛衣,参考图2保持同一书房、人物坐向和左右照明。人物面部近景,目光朝向画面下方桌面,表情平静,嘴闭合,作为随后缓慢抬眼的起始画面,无文字。Three image-to-video shots3 prompts
Reading shot
Reference used: reading shot first frame.
English translation
One continuous shot. Preserve the character’s appearance, clothing, and room layout from the source image. She sits at the desk with gentle breathing and natural blinks. Her gaze stays down. Use a very slow push-in. Keep the desk and phone still and her mouth closed.Original prompt
单个连续镜头。保持原图人物外貌、衣服和空间布局。人物坐在桌前,只有轻微呼吸和自然眨眼,目光保持朝下。镜头极缓慢推进,桌面与手机保持静止,嘴闭合。Phone lighting up
Reference used: phone shot first frame.
English translation
One continuous locked-off close-up. The same black phone lies flat on the desk. Its screen changes from off to a soft, even glow with no text or icons. Keep the phone and background still. No hand enters the frame.Original prompt
单个连续特写,固定镜头。同一部黑色手机平放在桌面上,屏幕从熄灭变为均匀柔和亮光,不出现文字或图标。手机和背景保持静止,无手进入画面。Character looking up
Reference used: reaction shot first frame.
English translation
One continuous locked-off close-up. Preserve the character’s identity and face shape. She slowly lifts her gaze from below the frame to look ahead. Her eyes widen slightly and her expression shifts from calm to alert, then holds. Keep her mouth closed and head movement minimal.Original prompt
单个连续近景,固定镜头。保持人物身份和脸型。人物缓慢将目光从画面下方抬向前方,眼睛轻微睁大,表情从平静转为警觉,最后停住。嘴闭合,头部只做很小幅度移动。| Image step | Request to response | Displayed charge per call |
|---|---|---|
| Character reference | 14.85 s | $0.0212 |
| Setting reference | 7.30 s | $0.0212 |
| Reading shot first frame | 24.60 s | $0.0212 |
| Phone shot first frame | 28.60 s | $0.0212 |
| Reaction shot first frame | 24.95 s | $0.0212 |
Reviewing character consistency and motion
All six videos decoded successfully. Below are the concurrent versions, with the first, middle, and final frame of each shot shown left to right.



Reading | The character looks up too soon
She looks up early in the concurrent clip. In the serial clip, her eyes close around the midpoint and end. Use a section where her gaze stays down in the edit, or give the model tighter gaze directions on a rerun.



Phone | The screen lights up, but the framing is wide
The screen lights up in both clips. Frame the phone tighter next time so there is room for a legible message overlay.



Reaction | The upward glance and expression are clear
The gray sweater and generated hairstyle carry through. In the edit, time the upward glance to follow the phone lighting up.
Review the reference images first. The character reference came back with blunt bangs, and the setting reference introduced a figure outside the window. The first frames retained the hairstyle and wardrobe, while the figure did not recur. The adjustments above are suggestions for the next run.
How ModelGo helps short drama and motion-comic teams manage costs
- Get footage into review sooner. When several scenes or variants are due together, submit independent shots concurrently so editors can start reviewing sooner.
- Rerun the shots that need work. Each video has its own job ID. If a glance comes too early or a shot is too wide, rerun that shot and keep the rest.
- Track generation spend by shot. Match ModelGo console charges to shot numbers and track first takes, reruns, and accepted clips when budgeting an episode.
We reconciled five image and six video charges by request ID. The displayed charge per video was $0.3529. Concurrency brought batch delivery forward by about 161 seconds. Individual charges are displayed to four decimal places, and the subtotals use the console totals.
| Stage | Outputs | Settled cost (USD) |
|---|---|---|
| References and first frames | 5 images | $0.1061 |
| Video across both runs | 6 clips | $2.1176 |
| Total | 11 calls | $2.2237 |
These are model charges for the two test runs. An episode budget should also include reruns, footage review, editing, and voice-over.
From generated shots to a 15-second rough cut
The three shots in order
Reading00:00
Phone lights upAbout 00:05
Character looks upAbout 00:10
We assembled the three serial clips into a roughly 15.13-second cut. The text message, voice-over, and music are added in post.
Enterprise Testing | Batch Delivery from Your Storyboards
Enterprise access
Book a DemoUse Book a Demo to contact ModelGo VIP Sales and request up to $200 in enterprise testing credits. The team will review your planned models, production needs, and expected job volume to help set up a test.
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Prepare representative shots
Choose several shots you produce regularly. Bring first frames, prompts, model choices, resolution, and duration, along with expected batch size and peak concurrency.
Book a demo and agree on a test plan
Use Book a Demo to align with the ModelGo team on models, batch size, and target concurrency. Confirm the credits available and how they can be used.
Increase load and record results
Start with a small batch, then build up to your target concurrency. Record time to first delivery, total batch time, completion rate, and reruns. Divide total generation spend by the number of accepted shots to estimate cost per usable shot.