Is Aion 1.0 or Claude Opus 4.6 Fast cheaper?
Aion 1.0 is cheaper ($0.752 / 1M tokens input / $1.50 / 1M tokens output) vs Claude Opus 4.6 Fast ($5.64 / 1M tokens input / $28.21 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.