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Aion-2.0 API pricing
As of October 21, 2026, AionLabs Aion-2.0 costs $0.80 per million input tokens and $1.60 per million output tokens through OpenRouter, with cached input at $0.20 per million.
Aion-2.0 benchmarks and specs · Every Aion Labs model's price
- Input, per million tokens$0.80
- Output, per million tokens$1.60
- Cached input, per million$0.20
- Context window131K tokens
- Max output33K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.0016 | $1.60 | Yes |
| Repository review | 50K input + 3K output tokens | $0.045 | $44.80 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.176 | $176.00 | No, it would need splitting |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
We read this price every day and have since October 15, 2026. It has not changed yet; any change will be listed here with its date.
- October 15, 2026 First recorded: $0.80 input, $1.60 output
Cheaper models as good as Aion-2.0
Aion-2.0 has no overall or coding score, so we make no quality claim against it.
Aion-2.0 pricing questions
- How much does Aion-2.0 cost per million tokens?
- $0.80 per million input tokens and $1.60 per million output tokens, as listed on OpenRouter on October 21, 2026.
- Does Aion-2.0 support prompt caching?
- Yes. OpenRouter lists cached input at $0.20 per million tokens, against $0.80 for uncached input.
- Has the price of Aion-2.0 changed?
- Not since we started recording it daily on October 15, 2026.