Solar Pro 3
Upstage · released Jan 27, 2026
- Type
- Closed
- Input
- $0.15
- Output
- $0.60
- Cached
- $0.015
List price · per 1M tokens · Upstage at 131K context · source ↗
Our take
Written Sep 30, 2026Solar Pro 3 is a hosted-only text model: we list no download for it, so using it means choosing a host. Nothing here measures how good its answers are, so treat it as a candidate to trial on work you can check yourself.
Use it for everyday text work through a host, and for long documents that would otherwise need splitting before you send them. Both listed hosts charge the same rate, so the choice between them comes down to which you prefer rather than to price. Skip it if you need measured evidence of coding, reasoning or chat quality before committing, or if you meant to run the model on your own machine.
The case for it
- Long documents go in whole rather than being split first, though reliable recall across all of it is unverified in our data.
- OpenRouter and Upstage list the same rate, so picking between them is not a price decision.
The case against it
- No benchmark scores are supplied, so the only way to judge the answers is a trial on work you can check yourself.
- Neither offer carries a measured speed, so our data cannot tell you which host responds faster.
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 between 57 min and 59 min ago — each listing carries its own date.
Upstage, through OpenRouter
The lab is also the cheapest we hold. The strip above and this offer are the same one, so nothing on this page undercuts Upstage on 131K of context.
- per 1M tokens
- $0.15 in / $0.60 out
- Context served
- 131K
- Throughput
- ~110 tok/s
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouterOpenRouter's own listing | $0.15 / $0.60checked 59 min ago | 131K | not measured | Unknown | Unknown | Unknown |
| UpstageThrough OpenRouter | $0.15 / $0.60checked 57 min ago | 131K118K max reply | 110 tok/s | No | Yesunknown period | Unknown |
OpenRouterAcross the 2 listings we hold: 1 says it does not train on prompts, 0 say they do and 1 does not say. 0 appear 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 | ✓ | ✓ | ✓ |
| UpstageThrough 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.
Models people weigh against Solar Pro 3
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 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 in, text out
- Catalogue slug
- upstage-solar-pro-3