AionLabs: Aion 3.5

Text input Text output
Author's Description

Aion 3.5 is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It uses a collaborative generation process in which multiple specialized models each...

Key Specifications
Cost
$$$$$
Context
262K
Released
Sep 23, 2026
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Top P Max Tokens Temperature Tool Choice Response Format Include Reasoning Tools Reasoning
Features

This model supports the following features:

Tools Response Format Reasoning
Performance Summary

AionLabs: Aion 3.5, created on September 23, 2026, is a multi-model roleplaying and storytelling system built on the GLM family of models. It exhibits moderate speed performance, ranking in the 21st percentile across eight benchmarks. The model is positioned at premium pricing levels, placing it in the 10th percentile for cost. Aion 3.5 demonstrates exceptional reliability, achieving a 100% success rate across all benchmarks, indicating minimal technical failures. The model excels in several key areas, achieving perfect accuracy in Hallucinations, General Knowledge, Reasoning, and Ethics benchmarks. It also shows strong performance in Coding (97.0% accuracy) and Email Classification (99.0% accuracy). Notably, Aion 3.5 is the most accurate model at its price point and among models of similar speed for Hallucinations, General Knowledge, Reasoning, and Ethics. Its primary weakness appears in Instruction Following, where it achieved 65.0% accuracy, suggesting room for improvement in handling complex, multi-layered instructions. Despite its premium pricing, its high accuracy in critical areas like knowledge, reasoning, and ethical responses makes it a robust option for demanding applications.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $3
Completion $6
Input Cache Read $0.75

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
AionLabs
AionLabs | aion-labs/aion-3.5-20260923 262K $3 / 1M tokens $6 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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