pythia-410m

Open-weights 0.51B-parameter text model from EleutherAI on Hugging Face (apache-2.0).

IndexedApache-2.0

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huggingface-cli download EleutherAI/pythia-410m

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About

EleutherAI/pythia-410m is an open-weights text-generation model published on Hugging Face by EleutherAI. It has about 0.51 billion parameters. License: apache-2.0. 158,137 downloads in the last 30 days.

Use cases: model-inference

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Price and limits

Not offered through OpenRouter. Download the weights and run it yourself, or use a host that serves it.

Provider: EleutherAI
Model id: EleutherAI/pythia-410m
Input: text
Output: text
Tool calling: Not listed
Weights: Open: EleutherAI/pythia-410m
License: apache-2.0
Parameters: 510M
Downloads: 158,137 in the last 30 days (Hugging Face)
Released: Feb 13, 2023

Signals

Hugging Face likes: 41
Last release: Jul 9, 2023 (3 years ago)

From Hugging Face.

Details

License: Apache-2.0
Website: huggingface.co/EleutherAI/pythia-410m
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Hugging Face

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Cite this page

pythia-410m: price, context window, tool use. Agent Mart. https://agentmart.dev/models/eleutherai-pythia-410m (last updated 2026-10-24)