AionLabs
Aion 3.5 API pricing.
Aion 3.5 is AionLabs’s model on the API market, released 23 Sept 2026. Prices are per million tokens in USD, as last read from the price list.
$3.00Input / 1M
$6.00Output / 1M
262KContext
33KMax output
Specification
USD per million tokens- Provider
- AionLabs
- Model id
aion-labs/aion-3.5- Input
- $3.00
- Output
- $6.00
- Cached input
- $0.75
- Context window
- 262K tokens
- Maximum output
- 33K tokens
- Takes
- text
- Returns
- text
- Tool use
- Yes
- Reasoning
- Yes
- Released
- 23 Sept 2026
- First tracked
- 23 Sept 2026
At $3.00 per million input tokens, Aion 3.5 is dearer than 303 of the 340 models on the price list.
Price changes
Tracked since 17 Sept 2026No price change has been recorded since tracking began on 17 Sept 2026. Prices are checked every six hours, and any change is listed here and on model changes.
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More from AionLabs
Cheapest input first- Aion 3.5 Mini$0.70 in · $1.40 out
- Aion-3.0-Mini$0.70 in · $1.40 out
- Aion-2.0$0.80 in · $1.60 out
- Aion-RP 1.0 (8B)$0.80 in · $1.60 out
- Aion-3.0$3.00 in · $6.00 out
Prices and specifications come from OpenRouter’s catalogue, last read 2 Nov 2026. A provider’s own price may differ; how this is collected.