Aion 3.5 Mini vs Claude Opus 5.5

Price, context window & benchmark comparison

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Aion 3.5 Mini

AionLabs
$0.70 / $1.40
Input / Output · per 1M tokens
VS
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Claude Opus 5.5

Anthropic
$4.00 / $20.00
Input / Output · per 1M tokens
Compare different models
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Verdict: Aion 3.5 Mini is 9.1× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix. Claude Opus 5.5 has the larger context window (1M vs 262K).
Aion 3.5 MiniClaude Opus 5.5
Input price / 1M$0.70$4.00
Output price / 1M$1.40$20.00
Blended price (3:1)$0.87$8.00
Cached input / 1M$0.18$0.20
Context window262K1M
Max output33K128K
Intelligence index57.6
Coding index
Providers11
Best provider uptime (30m)100.0%
Vision inputNoYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-232026-09-22
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FAQ

Which is cheaper, Aion 3.5 Mini or Claude Opus 5.5?

Aion 3.5 Mini is 9.1× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix.

Aion 3.5 Mini vs Claude Opus 5.5: which has a bigger context window?

Aion 3.5 Mini: 262,144 tokens. Claude Opus 5.5: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Aion 3.5 Mini ≈ $2,100, Claude Opus 5.5 ≈ $18,000.

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