Aion 3.5 vs Decision-1
Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.
Specs & pricing
| Aion 3.5 | Decision-1 | |
|---|---|---|
| Company | Aion Labs | Microsoft |
| Released | Sep 2026 | Oct 2026 |
| Context window | 262K | — |
| Input /1M tokens | $3 | $0.042 |
| Output /1M tokens | $6 | free |
| Open weights | No | No |
Benchmarks
| Benchmark | Aion 3.5 | Decision-1 |
|---|---|---|
| Speed (tok/s) | 53 tok/s | — |
Scores come from published leaderboards and official model cards (sources listed on the benchmarks page) and refresh daily. Pricing via vendor pages and OpenRouter.