MiniMax H3 Singularity LoRA API

About MiniMax H3 Singularity LoRA

The MiniMax H3 Singularity LoRA API serves a community fine-tune of H3 that holds up under fast motion, with a loras array that accepts up to three standard H3 LoRA files. Image to video jobs typically finish in about 75 seconds and reference jobs in two to three minutes. Use it as a premium action tier behind a cheaper default rather than as your first call for every request.

Call it with the model name minimax/h3-singularity-lora/image-to-video on POST /jobs/createTask, from 47 credits for a 5-second clip ($0.47). New accounts get 30 free credits to try it in the Playground first.

Introduction

MiniMax H3 Singularity LoRA Image to video animates your opening frame on Singularity, a community fine-tune of the open-weights MiniMax H3 trained for crisp fast motion, and lets you load up to three of your own H3 LoRAs. Clips run 3 to 15 seconds at 480p, 540p, 768p or 1080p with a stereo soundtrack, keep the shape of your frame, and can end on an optional closing frame.

Choose a mode by starting material

Key features

Tuned for movement

Singularity was trained further on high-dynamic-range footage to cut motion blur during fast action and to keep faces from collapsing in wider shots. Spins, strikes and whip pans are where the difference from a regular video model shows most.

Your H3 LoRAs load unchanged

The fine-tune keeps MiniMax H3's architecture, so the LoRAs you already use with H3 load here as they are, up to three per request with their own strengths from 0 to 4.

Request parameters

Pricing

Prices are in credits, the same credits you use on the website (1 credit = $0.01). The hold is taken when the task is accepted and settled to the actual charge when it finishes; failed tasks are refunded.

Each task is rounded up to whole credits, so one run at the lowest tier costs 47 credits for a 5-second clip ($0.47).

For an exact number before you run, send the same body to POST /jobs/quote.

Use cases

A fight or stunt beat from one still

Start from a frame with the character already mid-action and write the next beat: the draw, the strike, the landing. Keep it to three to six seconds so the motion stays tight.

Performance clips from a promo photo

Turn a dancer's or performer's photo into a short routine with the camera orbiting them. The fine-tune holds the face while the body moves fast.

Stylised action with a LoRA

Add an anime or film-stock LoRA and the same action beat takes on that look, while Singularity keeps the movement readable.

Prompt guide & pro tips

Two or three beats, each with a camera move

Write: she spins, draws the blade, the camera whips around her. Physical verbs and one camera instruction per beat give the fine-tune something concrete to sharpen. Close with an Audio: line for impacts and breath.

Start from motion, not a pose

Opening frames where the subject is already moving give smoother results than a static standing pose. If you only have a posed frame, make the first beat a clear, simple movement.

Expect a slower render

A five-second 480p clip took about 80 seconds in our testing, around twice the regular MiniMax H3 LoRA family. Set timeouts accordingly and settle the action at 480p before paying for 1080p.

API quick start

Call the MiniMax H3 Singularity LoRA API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
2. Send the request. POST /jobs/createTask with model minimax/h3-singularity-lora/image-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "minimax/h3-singularity-lora/image-to-video",
  "input": {
    "prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
    "image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
    "resolution": "480p",
    "duration_seconds": 5
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

What to build with the MiniMax H3 Singularity LoRA API

• An action or dance filter where the user's photo becomes a short, sharp performance clip.
• A creator tool that lets users bring their own H3 style LoRA and apply it to stills.
• Two-character scenes for games or fan content, driven by one reference still per character.

MiniMax H3 Singularity LoRA parameter notes

• loras takes up to three entries with a URL and a scale. Files trained for MiniMax H3 load unchanged.
• There is no aspect_ratio on image to video; the output follows image_url. Reference to video does take aspect_ratio.
• resolution offers 480p, 540p, 768p and 1080p. 480p is the sensible preview tier.
• seed is supported, so you can hold it fixed while testing LoRA strengths.

How MiniMax H3 Singularity LoRA API pricing adds up

Billing is per second of output by resolution, with 1080p at about four times the 480p rate. On reference to video, reference clip seconds also count toward billed time (up to 15 seconds), and each reference image or audio clip adds a small per-reference charge, so quote reference-heavy requests before sending them.

• resolution 480p, 5-second clip: 47 credits ($0.47) each, 4700 credits ($47.00) for 100 clips
• resolution 1080p, 5-second clip: 188 credits ($1.88) each, 18800 credits ($188.00) for 100 clips

Async jobs, webhooks and rate limits

Every MiniMax H3 Singularity LoRA request is asynchronous: createTask returns a taskId straight away, and the result arrives when the job finishes. Poll GET /jobs/recordInfo every few seconds, or pass a public https callBackUrl and verify the X-Webhook-Signature header (HMAC-SHA256 over taskId, timestamp and the body hash) before trusting the payload. Each account gets 1,000 write requests per 10 seconds; a 429 carries Retry-After. Send an Idempotency-Key with createTask so a retried request for minimax/h3-singularity-lora/image-to-video never runs or bills twice.

Common MiniMax H3 Singularity LoRA API errors

MiniMax H3 Singularity LoRA API questions

All MiniMax models

The regular MiniMax H3 LoRA is quicker and cheaper for calm, slow shots and adds text-to-video. Switch to Singularity when a fight, a dance or a whip pan starts to smear.

• MiniMax H3 APIExpressive clips with audio, up to 2KFrom 28 credits for a 5-second clip
• MiniMax Speech 2.8 HD APIHigh-fidelity speech in 400+ voices with emotion controlFrom 18 credits per 1,000 characters
• MiniMax Music 3.0 APIFinished stereo songs, with vocals or instrumentalFrom 27 credits per run
• MiniMax H3 Singularity LoRA APICommunity-tuned H3 video that loads your own LoRAsFrom 45 credits for a 5-second clip
• MiniMax H3 Max APIFast clips with ambience, effects and musicFrom 38 credits for a 5-second clip
• MiniMax H3 LoRA APIMiniMax H3 video with sound and up to three of your LoRAsFrom 38 credits for a 5-second clip
• MiniMax H3 Image LoRA APIH3 stills and edits with up to three of your LoRAsFrom 7 credits per image
• MiniMax Speech 2.8 Turbo APIFast speech in 400+ voices with emotion controlFrom 11 credits per 1,000 characters

Other video APIs

• LTX-2 19B LoRA APILTX-2 clips with sound and your own LoRA stylesFrom 14 credits for a 5-second clip
• Wan 2.2 LoRA APIWan 2.2 video with your LoRAs on either expert passFrom 18 credits for a 5-second clip
• Wan 2.2 5B LoRA APILight 720p Wan 2.2 clips that load your own LoRAsFrom 18 credits per run
• Wan 2.1 LoRA APIWan 2.1 video and edits with your own LoRAs, camera moves includedFrom 36 credits per run

More about MiniMax H3 Singularity LoRA

Try it

MiniMax H3 Singularity LoRA Image to Video AI onlineCreate videos with MiniMax H3 Singularity LoRA in PopNow

Endpoints

MiniMax H3 Singularity LoRA · Reference to VideoMiniMax H3 Singularity LoRA · Extend Video

Docs

MiniMax H3 Singularity LoRA model ID and input schema in the API docsPopNow API quickstart: your first request in five minutesImage to video guide for the PopNow APIWebhooks: get MiniMax H3 Singularity LoRA results without polling