How fast is MiniMax H3 Max?

Fast enough to change how you work. In our own runs a 5-second 480P clip returned in under ten seconds. Longer and higher-resolution clips take proportionally more, but MiniMax H3 Max is built around turnaround rather than maximum fidelity.

What resolutions and lengths does MiniMax H3 Max support?

480P and 768P, and any whole number of seconds from 5 to 15. There is no 2K tier and no 4-second option on MiniMax H3 Max — both live on MiniMax H3 instead.

Can MiniMax H3 Max animate my own image?

Yes. Pass a public image URL as the first frame to animate outward from it, as the last frame to land on it, or both to have MiniMax H3 Max generate the motion between them. Input images are not billed.

Does MiniMax H3 Max support reference images, video or audio?

No. Reference-to-video is the one capability MiniMax H3 Max gives up for speed, and requests carrying reference inputs are rejected. Use MiniMax H3 when you need subject or style references.

Is MiniMax H3 Max free or paid?

Paid, but there is nothing to commit to. New accounts get free credits on signup, which is enough to try MiniMax H3 Max before spending anything. After that you pay per second of finished video at the rate in the table above.

Does MiniMax H3 Max require a monthly subscription?

No. Billing is pay as you go: you buy credits, and MiniMax H3 Max draws from them per generation. $1 buys 1,000 credits, credits never expire, and there is no seat count or monthly minimum.

How do I get a MiniMax H3 Max API key?

Sign up, open the API keys page in your dashboard, and create one. The same key works for MiniMax H3 Max and every other model on reAPI — there is no per-model approval step and no waitlist.

What happens if a generation fails?

You are not charged. Credits are reserved when a MiniMax H3 Max job starts and returned in full if it fails, so a rejected or errored generation costs nothing.

MiniMax H3 Max — Fast Text and Image to Video

MiniMax H3 Max is the speed-tuned version of MiniMax H3. Type a prompt or drop in a still, and a 5-15 second clip comes back in seconds rather than minutes. Pay per second of finished video, with no plan to sign up for.

Highlights: Fast generation · 480P & 768P · 5-15s · text & image input
Best for: High-volume short video on a deadline
Input: Text prompt, first frame, last frame
Output: MP4 video

Input

Prompt*

Up to 7,000 characters

Aspect ratio*

Seven options, from 21:9 down to 9:16

Duration6

5 to 15 seconds

Resolution

480P or 768P

Estimated cost~$0.456456 credits

Result

Try one of these prompts

Pricing

Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.

First test cost

$0.238238 credits

One 5-second sample at the cheapest tier.

Testing budget guide

Add credits

$10

≈ 42 tests

$50

≈ 210 tests

$100

≈ 421 tests

480P video, per second: $0.048; Price · 1 second
768P video, per second: $0.076; Price · 1 second

What is MiniMax H3 Max?

MiniMax H3 Max is a video generation model from MiniMax, built as the fast variant of MiniMax H3. It takes a text prompt, a still image, or a pair of first and last frames, and returns a 5 to 15 second clip at 480P or 768P. The trade for that speed is a narrower feature set: MiniMax H3 Max drops the 2K tier and the reference-image, reference-video and reference-audio inputs that the full MiniMax H3 carries. If your work is short-form and you care more about turnaround than about 2K masters, MiniMax H3 Max is the one to reach for. On reAPI it runs behind the same video endpoint as every other model here, billed by the second with no subscription.

What you can build with this model

Real-world workflows and production use cases you can build and ship with this model.

Short-form character video, at volume

Social calendars eat clips. MiniMax H3 Max holds a character's face and outfit across a whole 15-second take, so a week of posts is an afternoon of prompting instead of a render queue you check on tomorrow.

Generate a clip

Title cards and motion design

Type sequences, logo reveals, lower thirds. Give MiniMax H3 Max a first frame from your design tool and it carries the lighting and material through the move, which is the part that usually costs a day in After Effects.

Narrative scenes you can actually iterate on

Two people at a table, a look that lands, a beat of silence. Because MiniMax H3 Max returns in seconds, you can rewrite the direction and watch the difference immediately instead of batching versions overnight.

Why reAPI for MiniMax H3 Max

Speed you can feel

MiniMax H3 Max was tuned for turnaround. Short clips come back in seconds, which changes prompting from a batch job into a conversation.

Start from a still

Feed MiniMax H3 Max a first frame, a last frame, or both. Your art direction survives into the video instead of being re-guessed from text.

Pay for output, not seats

Billing is per second of finished video. Input images cost nothing, failed generations are refunded, and there is no monthly plan.

MiniMax H3 Max vs MiniMax H3

Same family, different trade. MiniMax H3 Max buys speed by giving up the top resolution tier and the reference inputs. Here is exactly what moves.

Capability

MiniMax H3 Max on reAPI

MiniMax H3

Generation speed

Tuned for fast turnaround

Standard generation time

Output resolution

480P and 768P

768P and 2K

Clip length

5 to 15 seconds

4 to 15 seconds

Text to video

Supported

Image to video

First frame, last frame, or both

Reference image, video, audio

Not supported

Supported

Comparison reflects publicly documented model behavior at the time of writing. Both models are available on reAPI through the same endpoint, so switching between them is a change of one field.

Start in three steps

step 01
Get a key
Create an API key from your dashboard. New accounts start with free credits, enough to run several MiniMax H3 Max clips before you top up.
Open
step 02
Try it here
The playground on this page posts to the live MiniMax H3 Max endpoint. Change the prompt, pick a resolution, and watch the cost update before you send.
Open
step 03
Ship it
Copy the request into your app. One POST creates the MiniMax H3 Max job, one GET returns the finished MP4.
Open

docs/api/minimax-h3-max

API reference

Drop-in code and the full parameter table.

View full reference

curl -X POST https://reapi.ai/api/v1/videos/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "minimax-h3-max",
    "prompt": "A barista pours steamed milk into a dark espresso",
    "aspect_ratio": "16:9",
    "resolution": "768P",
    "duration": 6
  }'

Parameter validation failed

Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.

Authentication or balance issue

401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.

Content or material rejected

Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.

Task failed or timed out

A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.

Frequently asked questions

Common questions about this model.

MiniMax H3 Max is MiniMax's speed-optimised video model. It generates 5 to 15 second clips at 480P or 768P from a text prompt or a still image, and is positioned as the fast counterpart to the fuller MiniMax H3.