Calculate the cost of using aion-3.5-mini from OpenRouter for your AI applications
Pricing data last updated:
Mode: Chat
Max: 262,144 tokens
Max: 32,768 tokens
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aion-3.5-mini is a chat model from OpenRouter, one of 502 chat models they offer. It is priced at $0.70 per 1M input tokens and $1.40 per 1M output tokens, ranking 2028 out of 3778 chat models by cost and cheaper than 46% of models in this category. aion-3.5-mini supports function calling, reasoning, prompt caching, structured output. Its 262K-token context window is in the top 45% among chat models.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
Use the maximum token limits shown above to understand the model's capacity. This model can handle up to 262,144 input tokens. The maximum output length is 32,768 tokens.
At $0.70 per 1M input tokens and $1.40 per 1M output tokens, aion-3.5-mini ranks 2028 out of 3778 chat models by input cost. It is more expensive compared to the median of $0.60 for chat models, and is cheaper than 46% of models in this category.
aion-3.5-mini is one of 502 OpenRouter chat models, with support for function calling, reasoning, prompt caching, structured output. its 262K-token context window places it in the top 45% of chat models.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs aion-3.5-mini |
|---|---|---|---|---|
| gpt-5.4-mini | Azure | $0.75 | $4.50 | +7% |
| gpt-5.4-mini-2026-03-17 | Azure | $0.75 | $4.50 | +7% |
| gemini-3.6-flash | Vertex AI | $0.75 | $3.75 | +7% |
Similar chat models from other providers
Yes. aion-3.5-mini costs $0.70 per 1M input tokens compared to gpt-5.4-mini's $0.75 per 1M input tokens, making it 7% more affordable. Both are chat models and share support for vision, function calling, reasoning, web search, prompt caching, structured output.
aion-3.5-mini input pricing is $0.70 per 1M tokens, which is 17% above the median of $0.60 for chat models. It ranks 2028 out of 3778 chat models by input cost, making it cheaper than 46% of models in this category. For output, it costs $1.40 per 1M tokens compared to the median of $1.75.
Among OpenRouter's 502 chat models, aion-3.5-mini ranks 258 by input cost.
The most comparable chat models to aion-3.5-mini are: gpt-5.4-mini from Azure ($0.75/1M input tokens); gpt-5.4-mini-2026-03-17 from Azure ($0.75/1M input tokens); gemini-3.6-flash from Vertex AI ($0.75/1M input tokens); gemini-3.7-flash from Vertex AI ($0.75/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.
You can monitor OpenRouter service health in real time on the Bifrost OpenRouter Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds.
aion-3.5-mini is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $0.70 and generating 1M output tokens costs $1.40.