# Aion-RP (slim)

> Aion-RP, a family of models by AionLabs, listed from OpenRouter. Indexed, not reviewed: facts and our own checks, no score or ranking. Aion-RP-Llama-3.1-8B ranks the highest in the character evaluation portion of the RPBench-Auto benchmark, a roleplaying-specific variant of…

- Full: https://www.anchorterminal.com/tools/aion-rp.md (~500 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/tools/aion-rp.json · canonical https://www.anchorterminal.com/tools/aion-rp
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

# Aion-RP

> Indexed, not reviewed: facts from OpenRouter and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: model family, by AionLabs
- Category: Model APIs & inference (https://www.anchorterminal.com/categories/inference.md)
- Listed because: OpenRouter lists it, with prices from the providers that serve it.
- What OpenRouter says: Aion-RP-Llama-3.1-8B ranks the highest in the character evaluation portion of the RPBench-Auto benchmark, a roleplaying-specific variant of Arena-Hard-Auto, where LLMs evaluate each other’s responses. It is a fine-tuned base model...

## Models (1)

| Model | OpenRouter id | Released | Context | Input $/1M | Output $/1M | Supports |
| --- | --- | --- | --- | --- | --- | --- |
| Aion-RP 1.0 (8B) | `aion-labs/aion-rp-llama-3.1-8b` | 2025-02 | 32k | $0.80 | $1.60 |  |

Prices and limits as OpenRouter lists them; a provider's own price can differ.

- JSON: https://www.anchorterminal.com/api/v1/tools/aion-rp.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming