# Celeris 1 API

Celeris's Celeris 1, through an OpenAI-compatible API. Providers quote it on an open exchange, and each request goes to the offer with the lowest estimated charge that meets your rules.

- Providers compete for each request. The exchange ranks the offers that meet your rules by estimated charge. It fixes your maximum charge before the first token, and you pay for the tokens that the model uses.
- The OpenAI and Anthropic APIs. Use the OpenAI or Anthropic SDK that you have. Set the base URL and your key, and send celeris-1 as the model.
- Your data rules. Send x-liquid-retention: none and only offers whose provider does not keep your content compete for the request.

## Facts

- Model name: celeris-1
- Maker: Celeris
- Context window: 8,192 tokens
- Input price: $2.003 per million tokens
- Output price: $6.008 per million tokens
- Providers: 1 independent provider
- Regions: us

## Providers

- [Architect](https://liquidinference.ai/providers/805445a7-0e40-4c1b-9baf-7b3b01e30e42.md): us, $2.003 input and $6.008 output per million tokens, $2.003 cache read per million tokens, 8,192 tokens of context

## Scores

- HLE: 6.8, #183 of 273
- GPQA: 63.1, #170 of 250
- AA-LCR: 38.0, #186 of 237
- SciCode: 21.6, #121 of 123
- MMLU-Pro: 78.0, #55 of 133

Scores: Artificial Analysis (https://artificialanalysis.ai/)

## Request

```sh
curl https://router.inference.ai.exchange/v1/chat/completions \
  -H "Authorization: Bearer $LIQUID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "celeris-1",
    "messages": [{"role":"user","content":"Say hello."}]
  }'
```

## Questions

### What is Celeris 1?

Celeris 1 is a model from Celeris.

### How much does Celeris 1 cost?

Offers now ask $2.003 per million input tokens and $6.008 per million output tokens. A job pays for the tokens it uses. The exchange picks the cheapest eligible offer.

### What is the context length of Celeris 1?

The largest offer takes 8,192 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.

### What can Celeris 1 do?

Its providers list Reasoning effort, JSON object, JSON schema, Frequency penalty, Logit bias, Log probabilities, Min-p sampling, Presence penalty, Repetition penalty, Seed, Stop sequences, Top-k sampling, Top-p sampling, Text, Tools.

### What inputs and outputs does Celeris 1 support?

Text → Text.

### Which providers serve Celeris 1?

1 independent provider quote it now, with 1 offer. The table above ranks them by the cost of a typical job.

### How do I call Celeris 1?

Send "celeris-1" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.

### When was Celeris 1 listed?

The exchange first listed it on 10/9/2026. This is not its release date.

## Related pages

- [This page in a browser](https://liquidinference.ai/models/celeris-1)
- [Set up a client](https://liquidinference.ai/connect/celeris-1)
- [All models](https://liquidinference.ai/models)
- [Providers](https://liquidinference.ai/providers.md)
- [Discover the best model for your budget](https://liquidinference.ai/discover)
- [Quickstart](https://liquidinference.ai/docs/quickstart.md)
- [llms.txt: the index of every page, as Markdown](https://liquidinference.ai/llms.txt)
- [llms-full.txt: every page in one file](https://liquidinference.ai/llms-full.txt)