Aion 3.5
by AionLabsaion-labs/aion-3.5
LLMCompare cannot run Aion 3.5 yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.
See the models that can be run nowAion 3.5 at a glance
- Context length
- 262,144 tokens
- Maximum output
- 32,768 tokens
- Accepts
- Text
- Returns
- Text
- Features
- ReasoningJSON outputTool callingPrompt caching
- Reasoning effort levels
maxhighlowReasoning is always on for this model.- Released
- 23 Sep 2026
- Knowledge cutoff
- Not published
Model facts synced from the OpenRouter model list on 21 Oct 2026.
Aion 3.5 pricing by route
A route is the service LLMCompare calls to reach the model. Aion 3.5 has 1 route. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Cache readper 1M tokens | Price verified on | Source |
|---|---|---|---|---|---|---|
| OpenRouterDefault | Not configured | $3.00 | $6.00 | $0.75 | openrouter.ai/aion-labs/aion-3.5 |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to Aion 3.5 costs. The starting numbers are examples. Change them to match your task.
Part of the input tokens above, billed at the cache read price.
Billed in addition to the output tokens.
- Cost per call
- $0.006
- 8 credits
- Cost of 100 calls
- $0.60
- 800 credits
Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
These are the parameters LLMCompare can set when it calls the model through OpenRouter.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
temperature | Number | 0 to 2in steps of 0.1 | Provider default |
top_p | Number | 0 to 1in steps of 0.05 | Provider default |
max_tokens | Integer | 1 to 32,768 | Provider default |
reasoning_effort | One of | maxhighlow | high |
response_format | One of | textjson_object | Provider default |
About 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...
Description as published for this model. LLMCompare has not edited it.
Models to compare with Aion 3.5
Text models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Context | Max output | Input priceper 1M tokens | Output priceper 1M tokens | Features | Released | On LLMCompare |
|---|---|---|---|---|---|---|---|---|
Aion-3.0AionLabsaion-labs/aion-3.0 | 131k | 32.8k | $3.00 | $6.00 | JSONToolsCache | No route yet | ||
Aion-2.0AionLabsaion-labs/aion-2.0 | 131k | 32.8k | $0.80 | $1.60 | JSONToolsCache | No route yet | ||
Aion-RP 1.0 (8B)AionLabsaion-labs/aion-rp-llama-3.1-8b | 32.8k | 29.5k | $0.80 | $1.60 | — | No route yet | ||
Mistral Medium 3.5Mistralmistralai/mistral-medium-3-5 | 262k | 210k | $1.50 | $7.50 | ReasoningJSONToolsVision | No route yet | ||
Pareto 26.9unbiasedunbiased/pareto-26.9 | 262k | 131k | $2.50 | $7.50 | JSONToolsCacheVision | No route yet | ||
o3OpenAIopenai/o3 | 200k | 100k | $2.00 | $8.00 | JSONToolsCacheVision | No route yet |
Questions about Aion 3.5
- How much does Aion 3.5 cost?
- On the OpenRouter route, Aion 3.5 costs $3.00 per 1 million input tokens and $6.00 per 1 million output tokens, in US dollars. Input tokens that Aion 3.5 reads from the prompt cache cost $0.75 per 1 million tokens. LLMCompare verified this price on 21 Oct 2026.
- What is the context length of Aion 3.5?
- Aion 3.5 has a context length of 262,144 tokens and returns up to 32,768 output tokens in one call.
- What inputs does Aion 3.5 accept?
- Aion 3.5 accepts these inputs: Text. Aion 3.5 returns: Text.
- Which reasoning effort levels does Aion 3.5 support?
- Aion 3.5 supports these reasoning effort levels: max, high, low. Reasoning is always on for Aion 3.5 and cannot be turned off.
- Can I test Aion 3.5 on my own data?
- Not yet. LLMCompare lists the prices and parameters of Aion 3.5, but no route to Aion 3.5 is configured on LLMCompare, so it cannot be selected for an evaluation.