Seed 2.1 Turbo
ByteDance Seed · released Aug 12, 2026
- Type
- Closed
- Input
- None held
- Output
- None held
- Cached
- None held
We don't hold a list price for this model yet · hosted only — we have no record of published weights
Our take
Written Sep 24, 2026Seed 2.1 Turbo is a hosted-only model: we list no download for it, so using it means choosing a host. It takes text, images and video in one request, and nothing in our data measures how good its answers are, so treat it as a candidate to trial on work you can check.
Use it for work that mixes a written question with a screenshot or a video clip and expects a written answer, or for long inputs you would rather not split into chunks first. Both offers we list are priced identically, so the choice between them is not a price decision. Skip it if you need measured evidence of coding, reasoning or chat quality before committing, or if you need to run the model on your own hardware.
The case for it
- Images and video go into the same request as the text, so a screenshot or a clip does not have to be described in words first.
- The request capacity takes long documents whole, though whether it reliably uses material from the far end of a long input is unverified in our data.
The case against it
- No benchmark scores are supplied, so chat, coding and reasoning ability all need a trial on work you can check yourself.
- We list no download for it, so hosted use is the only route we can point you to.
How good is it?
We hold no score for this model.
So there is no figure here for everyday use, coding, agent work or writing. That is a gap in our data, not a low score.
Where to rent it
Prices checked 2 hours ago — each listing carries its own date.
- per 1M tokens
- $0.50 in / $2.50 out
- Context served
- 262K
- Throughput
- Not measured
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouterOpenRouter's own listing | $0.50 / $2.50checked 2 hours ago | 262K | not measured | Unknown | Unknown | Unknown |
| Seedfp8Through OpenRouter | $0.50 / $2.50checked 2 hours ago | 262K236K max reply | 47 tok/s | No | No | Confirmed |
Across the 2 listings we hold: 1 says it does not train on prompts, 0 say they do and 1 does not say. 1 appears in the zero-retention registry we check; the rest are unknown to us.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| OpenRouterOpenRouter's own listing | ✓ | ✓ | ✓ |
| Seedfp8Through OpenRouter | ✓ | ✓ | ✓ |
Tool calling: 2 of 2 listings say yes. JSON output: 2 of 2 listings say yes. Strict schema: 2 of 2 listings say yes.
When we formed this view
Recent changes
What moved
first indexed by our pipelineEach date is the day we first saw the change, or the day the maker announced it.
What we do not know about this model yet
- No independent board has scored it, so we hold no quality figures at all.
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 1 of 2 listings does not say whether it trains on prompts.
- We don't hold a list price for this model yet — the gap is ours, not the lab's.
- We hold no cached-input rate for any of its listings.
- We hold no batch or off-peak rate for any of its listings.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
We hold no licence record for this model, and no record of published weights either — so we can neither summarise its terms nor point you at the weights.
Identifiers
- Takes in, gives back
- Text, images and video in, text out
- Catalogue slug
- bytedance-seed-seed-2-1-turbo