Home › Compare › AionLabs: Aion 3.5 vs MoonshotAI: Kimi K3.1 Pro
AionLabs: Aion 3.5 vs MoonshotAI: Kimi K3.1 Pro: API Pricing Compared
Comparing AionLabs: Aion 3.5 and MoonshotAI: Kimi K3.1 Pro: on combined input+output list price, AionLabs: Aion 3.5 is cheaper at $9 vs $12 per 1M tokens — a difference of $3 (25%). AionLabs: Aion 3.5 costs $3 in / $6 out with a 262,144-token context; MoonshotAI: Kimi K3.1 Pro costs $2 in / $10 out with a 1,048,576-token context.
| AionLabs: Aion 3.5 | MoonshotAI: Kimi K3.1 Pro | |
|---|---|---|
| Input /1M | $3 | $2 |
| Output /1M | $6 | $10 |
| Cached input /1M | $0.75 | $0.2 |
| Context window | 262,144 | 1,048,576 |
| Max output tokens | 32,768 | 943,718 |
| Cost @ 10M in + 2M out / mo | $42 | $40 |
Estimate your own workload in the cost calculator, or open the full pages for AionLabs: Aion 3.5 and MoonshotAI: Kimi K3.1 Pro.
Frequently asked questions
Which is cheaper, AionLabs: Aion 3.5 or MoonshotAI: Kimi K3.1 Pro?
AionLabs: Aion 3.5 is cheaper on combined list price: $9 vs $12 per 1M tokens (input + output). At 10M input + 2M output tokens per month, AionLabs: Aion 3.5 costs $42 and MoonshotAI: Kimi K3.1 Pro costs $40.
Which has the larger context window, AionLabs: Aion 3.5 or MoonshotAI: Kimi K3.1 Pro?
AionLabs: Aion 3.5 has a context window of 262,144 tokens; MoonshotAI: Kimi K3.1 Pro has 1,048,576 tokens. The larger one is MoonshotAI: Kimi K3.1 Pro.
Price snapshot October 24, 2026, refreshed daily.