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 0.6 s?
131Kcontext

Ranking?

Full ranking →
1Gemini 4 Argon77.52MiniMax M3.1 Flash72.53Sonnet 5.571.84Muse Wonder Full71.35Opus 5.569.5
···
124NVIDIA Nemotron 3 Nano 4B0.4125Celeris 10.4126Granite 4.2 3B0.4

Strong at

C
Coding#77 of 134Agents & work tasks#115 of 177Reasoning#228 of 336Science#216 of 312Long context#203 of 314Knowledge#296 of 320

Benchmarks

in Agents & Tool Use
Terminal-Bench 2.111.2#126
Terminal-Bench 4.00#77
GDPval-AA (work tasks) 2.1301.4#115
AA-LCR (long context) 1.138#205
τ³-Banking · AA3.9#128
AutomationBench-AA0.4#125
AA-Briefcase 1.1 · Elo151.2#121

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?›

#228 of 336 in Chat & Knowledge, #77 of 134 in Coding, #125 of 135 in Agents & Tool Use, #116 of 135 in Vision & Documents.

Is Celeris 1 better than NVIDIA Nemotron 3 Nano 4B?›

On AutomationBench-AA, Celeris 1 scores 0.4 vs 0.4 — about the same.

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 DeepSeek V4.1 Flash 1017.

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?›

GPT-6 Luna (cheaper), DeepSeek V4.1 Flash 1017 (open weights).