Aion-2.0
AionLabs · released Feb 23, 2026
- Type
- Closed
- Input
- $0.80
- Output
- $1.60
- Cached
- $0.20
List price · per 1M tokens · AionLabs at 131K context · source ↗
Our take
Written Sep 12, 2026Aion-2.0 is a proprietary text-only model from AionLabs with a 131,072-token request limit, released in early 2026. It offers identical pricing across its two hosted endpoints and a known throughput figure on the direct route, though no benchmark scores are available to verify its quality.
Pick this for long-document processing where you need a six-figure token limit and open weights are not required. Use it when predictable pricing across providers matters, since both endpoints charge the same rate. Skip it if you need measured quality data to justify cost, or if licensing transparency is important to your compliance workflow.
The case for it
- 131,072-token request limit, substantial for long-document work.
- Identical pricing on both tracked endpoints, so provider choice does not affect cost.
- 50 tokens per second reported on the direct Aion-Labs endpoint.
The case against it
- No benchmark scores in our data — chat, reasoning, coding and knowledge quality all unverified.
- Proprietary with no licence terms disclosed; the licence field is unverified in our data.
- Higher per-token cost than many options with proven quality, and no evidence yet to support the price point.
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.
AionLabs, 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 AionLabs on 131K of context.
- per 1M tokens
- $0.80 in / $1.60 out
- Context served
- 131K
- Throughput
- ~53 tok/s
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouterOpenRouter's own listing | $0.80 / $1.60checked 2 hours ago | 131K | not measured | Unknown | Unknown | Unknown |
| AionLabsThrough OpenRouter | $0.80 / $1.60checked 2 hours ago | 131K33K max reply | 53 tok/s | No | Yes30 days | 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 | ✓ | ✓ | ✗ |
| AionLabsThrough OpenRouter | ✓ | ✓ | ✗ |
Tool calling: 2 of 2 listings say yes. JSON output: 2 of 2 listings say yes. Strict schema: 0 of 2 listings say yes, 2 say no.
Models people weigh against Aion-2.0
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
- aion-labs-aion-2-0