Home › Compare › AionLabs: Aion 3.5 vs Pareto 26.9
AionLabs: Aion 3.5 vs Pareto 26.9: API Pricing Compared
Comparing AionLabs: Aion 3.5 and Pareto 26.9: on combined input+output list price, AionLabs: Aion 3.5 is cheaper at $9 vs $10 per 1M tokens — a difference of $1 (10%). AionLabs: Aion 3.5 costs $3 in / $6 out with a 262,144-token context; Pareto 26.9 costs $2.5 in / $7.5 out with a 262,144-token context.
| AionLabs: Aion 3.5 | Pareto 26.9 | |
|---|---|---|
| Input /1M | $3 | $2.5 |
| Output /1M | $6 | $7.5 |
| Cached input /1M | $0.75 | $0.25 |
| Context window | 262,144 | 262,144 |
| Max output tokens | 32,768 | 131,072 |
| Cost @ 10M in + 2M out / mo | $42 | $40 |
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Frequently asked questions
Which is cheaper, AionLabs: Aion 3.5 or Pareto 26.9?
AionLabs: Aion 3.5 is cheaper on combined list price: $9 vs $10 per 1M tokens (input + output). At 10M input + 2M output tokens per month, AionLabs: Aion 3.5 costs $42 and Pareto 26.9 costs $40.
Which has the larger context window, AionLabs: Aion 3.5 or Pareto 26.9?
AionLabs: Aion 3.5 has a context window of 262,144 tokens; Pareto 26.9 has 262,144 tokens. The larger one is AionLabs: Aion 3.5.
Price snapshot October 21, 2026, refreshed daily.