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Models

Wolkyen models

Pluto 1.6 is the current model. Pluto 1 and Pluto 0.5 are archived. Fly1.6 is on the Fly page and the API. The API also has fly-1.5 and fly-1.2. Neptun3 One is out.

Pluto 1.6

The current model. Closed source. Try it in chat.

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Pluto 1 and Pluto 0.5 are archived. The last open-weight Plutos. Neptun3

Pluto 1

A 1.2B Instruct model for quick answers. 100+ tokens per second on GPUs, up to 50 on CPU. Non-reasoning. Almost as good as a 2B, far faster. 1.2B parameters.

Pluto page

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Multi-LLM

PlutoM1

Name
PlutoM1
Parameter size
1.2b-1.7b
Architecture
hybrid
Type
Multi-LLM
Contenders
Pluto 1 & Pluto 1.5
Judge
Qwen 3.5
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Neptun3 One

A 350M open-weight model with a hybrid architecture, native tool use, and quantizations that run on your own hardware. 350M parameters.

Hugging Face

218 downloads

ollama run hf.co/Wolkyen/Neptun3-One:Q4_K_M

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Fly1.6-long

Long answer. Needs a sign-in.

Open Fly

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ex-neptune