Aion 3.5 Mini vs Claude Opus 5.5
Price, context window & benchmark comparison
VS
Compare different models
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 Mini | Claude 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 window | 262K | 1M |
| Max output | 33K | 128K |
| Intelligence index | — | 57.6 |
| Coding index | — | — |
| Providers | — | 11 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-23 | 2026-09-22 |
| Retirement | — | — |
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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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