Aion-2.0 vs Sonar
Prices checked
Aion-2.0 takes 2 of 5 rounds against Sonar. Both cost $1 per million tokens to run.
Aion-2.0
131k context · tool calling
$1/M tokensOpenRouter's own price · $0.58 per 1,000 pages
Maker's price in (lower wins)
$0.80/M
$1/M
Maker's price out (lower wins)
$1.60/M
$1/M
Cheapest price (lower wins)
none below the maker
none below the maker
Maker's price, blended (lower wins)
$1/M
$1/M
Cost per 1,000 pages (lower wins)
$0.58
$0.66
Context
131k tokens
128k tokens
Open weights
no
no
Tool calling
yes
no
Structured output
no
not published
Reads images
no
no
Reasoning
yes
no
Released
21 Dec 2025
1 Jan 2024
Providers selling it
7
15
Price we measure against
OpenRouter
the maker's own
Trains on your prompts (no is better)
no provider to check
no provider to check
Providers selling both · 3
Kilo Gateway$1 / $1
LLMTR$1 / $1
OpenRouter$1 / $1
Aion-2.0, then Sonar, per million tokens.
Go further
Add a third or fourth model, or change the weighting, in the tool.
What moved this week
AI/ML API · 23% cheaper ·
$1 / $1 $1.30 / $1.30
Frequently asked
- Which is cheaper, Aion-2.0 or Sonar?
- Neither: both run at $1 per million tokens, blended 3 in : 1 out, read on 31 Oct 2026.
- Where is each one cheapest?
- Aion-2.0: nobody sells it below OpenRouter's own price with a stated reason, so $1 is the number to beat. Sonar: nobody sells it below the maker's own price with a stated reason, so $1 is the number to beat.
- Can I buy both from one provider?
- Yes. 3 providers sell both: Kilo Gateway, LLMTR, OpenRouter. The cheapest of them for the two together is Kilo Gateway.
- Which holds more context?
- Aion-2.0, at 131k tokens against 128k.
Prices exclude tax, read 31 Oct 2026 from each provider's own catalog. They are per M tokens, blended 3 in : 1 out, and a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.
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