Aion 3.5 Mini vs Claude Opus 5.5

Claude Opus 5.5 leads on 1 of 1 benchmarks where both are measured. Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.

Specs & pricing

Aion 3.5 MiniClaude Opus 5.5
CompanyAion LabsAnthropic
ReleasedSep 2026Sep 2026
Context window262K1.0M
Input /1M tokens$0.7$4
Output /1M tokens$1.4$20
Open weightsNoNo

Benchmarks

BenchmarkAion 3.5 MiniClaude Opus 5.5
Speed (tok/s)55 tok/s97 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.