How much does Aion 3.5 Mini cost?

Aion 3.5 Mini costs $0.70/M input tokens and $1.40/M output tokens, with separate rates for Cache Read at $0.18/M tokens.

What is the context length of Aion 3.5 Mini?

Aion 3.5 Mini has a 262,144 token context window. It supports up to 32,768 completion tokens.

Does Aion 3.5 Mini support tool calling and structured outputs?

Yes. Aion 3.5 Mini accepts tools and tool_choice for function calling. It supports response_format for JSON output, without JSON-schema enforcement.

Which providers serve Aion 3.5 Mini?

Aion 3.5 Mini is served by 1 provider on OpenRouter: AionLabs.

What other text models does Aion Labs have?

Aion 3.5, Aion-3.0-Mini, Aion-3.0 and 2 more are other text models from Aion Labs.

When was Aion 3.5 Mini released?

Aion 3.5 Mini was released on September 23, 2026.

AionLabs: Aion 3.5 Mini

aion-labs/aion-3.5-mini

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Aion 3.5 Mini is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It is the smaller, lower-cost sibling of Aion 3.5 and uses the same collaborative generation process in which multiple specialized models each contribute to a response, producing stronger narrative structure and more compelling tension and conflict.

Modalities

In / out price

$0.70 / $1.40per 1M

Context

262K

Released

Sep 23, 2026

Providers

This model is hosted by one provider. OpenRouter forwards every request without routing.

Latency / throughput


	$0.70	$1.40	$0.18	1.58s	56 tok/s	100.00%

Input $0.70Output $1.40
56 tok/s100.00% uptime

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Weighted average

Input

$0.3318/M tokens

Output

$1.40/M tokens

Aion 3.5 Mini — Price history

Price history

No effective price data for this selection

		$0.332	$1.40	70.8%	100.0%

Effective in $0.332Effective out $1.40
Token share
100.0%

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Uptime (3d)

100.00%

Availability (3d)

99.34%

Availability over the last 3 days

Last 72 hours

Availability 99.34%

3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability

99.30%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Janitor AI

Janitor AI is a chatbot platform where users create and chat with custom AI characters for interactive roleplay, storytelling, and immersive fiction.

1.06Btokens

SillyTavern

SillyTavern is the LLM frontend for power users, a chat interface that connects to any model and gives deep control through character creation, roleplay, and prompt customization.

673Mtokens

Hermes Agent

Hermes Agent is an open-source, self-improving AI agent by Nous Research that runs persistently with memory across sessions, and builds reusable skills from experience. It comes with 40+ built-in tools, including web search, browser automation, and vision, plus scheduled automations and subagents.

257Mtokens

OpenMind

new

237Mtokens

Kilo Code

Kilo Code is an open-source AI coding agent that works across VS Code, JetBrains, and CLI to help developers ship code faster with agentic workflows.

171Mtokens

Rest of OpenRouter

83.5M

Top 5 Apps

62.9M

Not currently available through EU in-region routing. In-region routing docs

More models from Aion Labs

Aion 3.5

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 contribute to a response, producing stronger narrative structure and more compelling tension and conflict.

Text262K context$3 / $6

Aion-3.0-Mini

Aion-3.0 Mini is a multi-model roleplaying and storytelling system from AionLabs, built on the DeepSeek family of models. It uses a collaborative generation process in which multiple specialized models each contribute to a response, producing stronger narrative structure and more compelling tension and conflict.

Text131K context$0.70 / $1.40

Aion-3.0

Aion-3.0 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 contribute to a response, producing stronger narrative structure and more compelling tension and conflict.

Text131K context$3 / $6

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. It also handles mature and darker themes with more nuance and depth.

Text131K context$0.80 / $1.60

Aion-1.0

Aion-1.0 is a multi-model system designed for high performance across various tasks, including reasoning and coding. It is built on DeepSeek-R1, augmented with additional models and techniques such as Tree of Thoughts (ToT) and Mixture of Experts (MoE). It is Aion Lab's most powerful reasoning model.

Text33K context

Aion-1.0-Mini

Aion-1.0-Mini 32B parameter model is a distilled version of the DeepSeek-R1 model, designed for strong performance in reasoning domains such as mathematics, coding, and logic. It is a modified variant of a FuseAI model that outperforms R1-Distill-Qwen-32B and R1-Distill-Llama-70B, with benchmark results available on its Hugging Face page, independently replicated for verification.

Text16K context

Aion-RP 1.0

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 rather than an instruct model, designed to produce more natural and varied writing.

Text33K context$0.80 / $1.60

AionLabs: Aion 3.5 Mini

Providers