AionLabs: Aion-1.0

Aion-1.0 is a text-only reasoning model from AionLabs, accepting no image or audio input. It offers a 131,072-token context window and up to 32,768 output tokens per completion, which gives it reasonable room for long-document work or extended reasoning chains. It does not support tool use or structured output, so workflows that depend on function calling or guaranteed JSON formatting will need a different option. On price, it sits at $4.00 per million input tokens and $8.00 per million output tokens, a mid-range figure that is neither budget nor premium. The harder problem for buyers is that Aion-1.0 carries no independent benchmark coverage at this time, making performance comparisons speculative. Teams willing to run their own evaluations on reasoning-heavy tasks may find it worth testing, but those who need third-party evidence before committing budget should wait until coverage exists.