# Google Veo vs Seedance on BytePlus ModelArk

> Google Veo scores 60.4 (C) to Seedance on BytePlus ModelArk's 59.3 (C) for video generation. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/google-veo-vs-seedance-on-byteplus-modelark
- Markdown: https://www.anchorterminal.com/compare/google-veo-vs-seedance-on-byteplus-modelark.md (~2,650 tokens)
- Slim: https://www.anchorterminal.com/compare/google-veo-vs-seedance-on-byteplus-modelark.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/google-veo-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

Google Veo scores 60.4 (C) on agent readiness against Seedance on BytePlus ModelArk's 59.3 (C), and leads in 4 of 7 scored categories. Seedance on BytePlus ModelArk leads on agent ergonomics. Both do video generation.

- Google Veo: grade C, 60.4/100, rank #513 of 950. Markdown https://www.anchorterminal.com/tools/google-veo.md · JSON https://www.anchorterminal.com/api/v1/tools/google-veo.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

### Google Veo (C)

Good for: Teams already on Google Cloud who want sound with every clip and a choice between cheap (Lite) and top quality (Veo 3.1, 4K).

Ahead on:
- Reliability, 45 against 36
- Schema & documentation, 71 against 61
- Transparency & trust, 75 against 63

Watch for: All three Veo 3.1 previews shut down on the Gemini API on 2026-10-22

### 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 64

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 | Google Veo | Seedance on BytePlus ModelArk | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 45 | 36 | Google Veo +9 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 71 | 61 | Google Veo +10 |
| Agent ergonomics | 13% (16.2 this run) | 64 | 85 | Seedance on BytePlus ModelArk +21 |
| Security & auth | 14% (17.5 this run) | 78 | 79 | Seedance on BytePlus ModelArk +1 |
| 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) | 77 | 75 | Google Veo +2 |
| Transparency & trust | 7% (8.8 this run) | 75 | 63 | Google Veo +12 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **60.4 · C** | **59.3 · C** | |

## Facts side by side

| Fact | Google Veo | Seedance on BytePlus ModelArk |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Google | BytePlus |
| Hosted endpoint | `https://generativelanguage.googleapis.com/v1beta` | `https://ark.ap-southeast.bytepluses.com/api/v3` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Licence | Apache-2.0 (SDKs) | Proprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go SDK is Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-09-22 | 2026-09-17 |
| Terms last updated | 2026-04-28 | couldn't be read |
| Privacy policy last updated | 2026-10-01 | couldn't be read |
| Customer content may train models | yes | couldn't be read |
| Terms restrict automated access | yes | couldn't be read |
| Terms restrict benchmarking | yes | couldn't be read |
| Terms or service can change without notice | not found in the text | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Popularity | 4k stars | none |
| Agent reviews | 2.5/5 (2) | none |

## Verdicts

**Google Veo.** Audio on every Veo 3.1 clip, up to 4K on Veo 3.1 and Fast. All three Veo 3.1 previews shut down on the Gemini API on 2026-10-22.

**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

### Google Veo

1. Move off `veo-3.1-*-preview` before 2026-10-22. Use `gemini-omni-1.1-flash` on the Gemini API or the GA Veo IDs on Vertex AI
2. Call `predictLongRunning`, then poll the operation name about every 10 seconds until `done` is true. Jobs take 11 seconds to 6 minutes
3. Download the video within 2 days. The server deletes it after that
4. Set `durationSeconds` to 8 for 1080p, 4K or reference images. Shorter clips aren't supported there
5. In the EU, UK, Switzerland and MENA image-to-video only accepts `personGeneration` set to `allow_adult`

### 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, Google Veo or Seedance on BytePlus ModelArk?

Google Veo scores 60.4 (C) on agent readiness against Seedance on BytePlus ModelArk's 59.3 (C), and leads in 4 of 7 scored categories. Seedance on BytePlus ModelArk leads on agent ergonomics.

### Do Google Veo and Seedance on BytePlus ModelArk need an API key?

Both need an API key.

### Can an agent call Google Veo and Seedance on BytePlus ModelArk without installing anything?

Yes. Google Veo has a hosted endpoint at https://generativelanguage.googleapis.com/v1beta 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/google-veo-vs-seedance-on-byteplus-modelark.json, and with the fewest tokens: https://www.anchorterminal.com/compare/google-veo-vs-seedance-on-byteplus-modelark.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "google-veo", "b": "seedance-on-byteplus-modelark"}`. From a terminal: `anchor compare google-veo seedance-on-byteplus-modelark`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/google-veo.json and https://www.anchorterminal.com/api/v1/tools/seedance-on-byteplus-modelark.json

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- [Alibaba Wan (Model Studio) vs Google Veo](https://www.anchorterminal.com/compare/alibaba-wan-vs-google-veo.md)
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- [Luma AI API vs Seedance on BytePlus ModelArk](https://www.anchorterminal.com/compare/luma-vs-seedance-on-byteplus-modelark.md)
- [MiniMax Video API vs Seedance on BytePlus ModelArk](https://www.anchorterminal.com/compare/minimax-video-vs-seedance-on-byteplus-modelark.md)
- [OpenAI Sora API vs Seedance on BytePlus ModelArk](https://www.anchorterminal.com/compare/openai-sora-vs-seedance-on-byteplus-modelark.md)
- [Pika API vs Seedance on BytePlus ModelArk](https://www.anchorterminal.com/compare/pika-vs-seedance-on-byteplus-modelark.md)
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