---
id: "aion-labs/aion-2.0"
also: ["aion-labs/aion-2.0-20260223"]
card_usd_per_m: "0.8 in, 1.6 out, at aion-labs"
cheapest_list_usd_per_m: "0.8 in, 1.6 out, at aion-labs on openrouter"
cheapest_effective_usd_per_m: "0.4035 in, 1.5995 out, at aion-labs on openrouter"
context: 131072
max_output: 32768
input: ["text"]
output: ["text"]
released: "2026-02-23"
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["include_reasoning", "max_tokens", "reasoning", "response_format", "temperature", "tool_choice", "tools", "top_p"]
endpoints: 1
gateways: "openrouter (1)"
no_training: 1
trains: 0
retains_prompts: 1
---
# AionLabs: Aion-2.0

Aion-2.0 is a variant of DeepSeek V3.2 optimized for immersive roleplaying and storytelling. It is particularly strong at introducing tension, crises, and conflict into stories, making narratives feel more engaging....