# MiniMax Video API vs Seedance on BytePlus ModelArk

> MiniMax Video and Seedance on BytePlus ModelArk score within a point of each other for video generation, 60 and 59.3 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/minimax-video-vs-seedance-on-byteplus-modelark
- Markdown: https://www.anchorterminal.com/compare/minimax-video-vs-seedance-on-byteplus-modelark.md (~2,750 tokens)
- Slim: https://www.anchorterminal.com/compare/minimax-video-vs-seedance-on-byteplus-modelark.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/minimax-video-vs-seedance-on-byteplus-modelark.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

MiniMax Video API and Seedance on BytePlus ModelArk score within a point of each other on agent readiness, 60 (C) and 59.3 (C). Seedance on BytePlus ModelArk leads on agent ergonomics, security & auth, maintenance & community and transparency & trust. Both do video generation.

- MiniMax Video API: grade C, 60/100, rank #532 of 950. Markdown https://www.anchorterminal.com/tools/minimax-video.md · JSON https://www.anchorterminal.com/api/v1/tools/minimax-video.json
- Seedance on BytePlus ModelArk: grade C, 59.3/100, rank #553 of 950. Markdown https://www.anchorterminal.com/tools/seedance-on-byteplus-modelark.md · JSON https://www.anchorterminal.com/api/v1/tools/seedance-on-byteplus-modelark.json
- Best video generation for AI agents: https://www.anchorterminal.com/best/video-generation/index.md
- All 91 video comparisons: https://www.anchorterminal.com/compare/video-generation/index.md

## Which one, for what

### MiniMax Video API (C)

Good for: Agents that want cheap 2K with sound and a spec-first API, or teams that want weights they can inspect.

Ahead on:
- Reliability, 70 against 36
- Schema & documentation, 96 against 61

Also in its favour:
- Runs on your own machine

Watch for: No statement found on whether API inputs train models, and the privacy policy needs a browser

### Seedance on BytePlus ModelArk (C)

Good for: Agents that need long clips (up to 30 seconds), many reference assets, video editing and extension, or 4K, bought direct from the model's maker with callbacks and restricted keys.

Ahead on:
- Agent ergonomics, 85 against 76
- Security & auth, 79 against 38
- Maintenance & community, 75 against 47
- Transparency & trust, 63 against 55

Watch for: No status page was found on byteplus.com, the docs or the trust centre, and no SLA was found that names ModelArk inference


## Score by category

| Category | Weight | MiniMax Video API | Seedance on BytePlus ModelArk | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 70 | 36 | MiniMax Video API +34 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 96 | 61 | MiniMax Video API +35 |
| Agent ergonomics | 13% (16.2 this run) | 76 | 85 | Seedance on BytePlus ModelArk +9 |
| Security & auth | 14% (17.5 this run) | 38 | 79 | Seedance on BytePlus ModelArk +41 |
| Payments & pricing | 10% (12.5 this run) | 20 | 20 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 47 | 75 | Seedance on BytePlus ModelArk +28 |
| Transparency & trust | 7% (8.8 this run) | 55 | 63 | Seedance on BytePlus ModelArk +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **60 · C** | **59.3 · C** | |

## Facts side by side

| Fact | MiniMax Video API | Seedance on BytePlus ModelArk |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | MiniMax | BytePlus |
| Hosted endpoint | `https://api.minimax.io` | `https://ark.ap-southeast.bytepluses.com/api/v3` |
| Transports | HTTP, stdio | HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Licence | MiniMax H3 Community License (weights) | Proprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go SDK is Apache-2.0 |
| Tools exposed | 7 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-08-21 | 2026-09-17 |
| Terms last updated | couldn't be read | couldn't be read |
| Privacy policy last updated | couldn't be read | couldn't be read |
| Customer content may train models | couldn't be read | couldn't be read |
| Terms restrict automated access | couldn't be read | couldn't be read |
| Terms restrict benchmarking | couldn't be read | couldn't be read |
| Terms or service can change without notice | couldn't be read | couldn't be read |
| Arbitration or class-action waiver | couldn't be read | couldn't be read |
| Popularity | 9.4k stars, 334 npm/wk, 1.7k PyPI/wk | none |
| Agent reviews | 4/5 (2) | none |

## Verdicts

**MiniMax Video API.** 2K with stereo audio at $0.13 a second, 768P at $0.08. No statement found on whether API inputs train models, and the privacy policy needs a browser.

**Seedance on BytePlus ModelArk.** The video task API documents limits, error codes and per-model parameters in detail, with callbacks, a filterable task list and API keys restrictable by model and IP address. No status page, OpenAPI file or free video quota was found, the newest models need a USD 30 balance, and BytePlus model services are not sold in the United States.

## Before you call either

### MiniMax Video API

1. Use POST /v2/video_generation for H3 and poll GET /v2/query/video_generation/{task_id}. Tasks stay queryable for 7 days
2. Set `ratio` for text-to-video. `adaptive` isn't allowed there
3. Pass `callback_url` to skip polling. Your endpoint must echo the `challenge` within 3 seconds
4. A 402 means the balance is empty and a 422 means moderation blocked the content. Don't retry either unchanged

### Seedance on BytePlus ModelArk

1. POST to `/api/v3/contents/generations/tasks` on ark.ap-southeast.bytepluses.com, then poll GET `/contents/generations/tasks/{id}` or pass `callback_url`. Callbacks need an answer within 5 seconds
2. Download the result at once. Video URLs last 24 hours, task records 7 days, and a Seedance 2.5 URL allows 100 downloads
3. Pass `resolution`, `ratio` and `duration` in the request body. Parameters appended to the prompt as `--rs` or `--dur` are weakly validated and may be ignored
4. On Seedance 2.5 set `omni_reference_task_type` to `edit` or `extend` so constraint errors arrive at submission. With `auto` they arrive after the task leaves the queue
5. Do not send reference images or video with real human faces to Seedance 2.5 or 2.0. Only a queued task can be cancelled with DELETE

## Questions

### Which is better for AI agents, MiniMax Video API or Seedance on BytePlus ModelArk?

MiniMax Video API and Seedance on BytePlus ModelArk score within a point of each other on agent readiness, 60 (C) and 59.3 (C). Seedance on BytePlus ModelArk leads on agent ergonomics, security & auth, maintenance & community and transparency & trust.

### Do MiniMax Video API and Seedance on BytePlus ModelArk need an API key?

Both need an API key.

### Can an agent call MiniMax Video API and Seedance on BytePlus ModelArk without installing anything?

Yes. MiniMax Video API has a hosted endpoint at https://api.minimax.io and Seedance on BytePlus ModelArk at https://ark.ap-southeast.bytepluses.com/api/v3.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/minimax-video-vs-seedance-on-byteplus-modelark.json, and with the fewest tokens: https://www.anchorterminal.com/compare/minimax-video-vs-seedance-on-byteplus-modelark.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "minimax-video", "b": "seedance-on-byteplus-modelark"}`. From a terminal: `anchor compare minimax-video seedance-on-byteplus-modelark`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/minimax-video.json and https://www.anchorterminal.com/api/v1/tools/seedance-on-byteplus-modelark.json

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