C

Celeris 1

Jul 2026
CCeleris 1
Compare in
on
$0.05per task?
$0.20 / $0.70per 1M in / out
1,521 tok/sfirst token in 0.5 s?
131Kcontext

Alternatives?

Benchmarks

in Coding
SciCode21.6#134

FAQ

How much does Celeris 1 cost?›

$0.20 per 1M input tokens and $0.70 per 1M output tokens. A typical benchmark task costs about $0.05 at default effort.

Is Celeris 1 free to use?›

There is no free API; the cheapest paid price is $0.20 per 1M input tokens.

How good is Celeris 1, and what is it best at?›

#226 of 334 in Chat & Knowledge, #75 of 132 in Coding, #123 of 133 in Agents & Tool Use, #114 of 133 in Vision & Documents.

Is Celeris 1 better than Apodex 1.1?›

On Terminal-Bench 4.0, Celeris 1 scores 0 vs 0 — about the same. It is 89% cheaper per task.

How can I use Celeris 1?›

Through the API of Celeris.

What is the context window of Celeris 1?›

131K tokens.

When was Celeris 1 released? Is there a newer version?›

Released 2026-07-24. It is the current version in its line.

Is Celeris 1 open source?›

No, Celeris 1 is a closed model available through an API. The closest open-weights option here is GLM 5.3.

Can Celeris 1 read images?›

No, it accepts text only.

What is Celeris 1?›

Celeris 1 is a closed language model from Celeris, released Jul 2026.

What are the best alternatives to Celeris 1?›

Claude Haiku 5.5 (cheaper), GPT-6 Luna (better), GLM 5.3 (open weights).