Aion-2.0 vs GLM-4.5
Prices checked
GLM-4.5 takes 2 of 5 rounds against Aion-2.0. It is also the cheaper of the two to run, at $0.35 per million tokens against $1.
Aion-2.0
131k context · tool calling
$1/M tokensOpenRouter's own price · $0.58 per 1,000 pages
Z.aiWins 2 roundsGLM-4.5
131k context · tool calling · open weights
$0.35/M tokensCheapest price, at Submodel · $0.17 per 1,000 pages
Maker's price in (lower wins)
$0.80/M
$0.60/M
Maker's price out (lower wins)
$1.60/M
$2.20/M
Cheapest price (lower wins)
none below the maker
$0.35/M at Submodel
Maker's price, blended (lower wins)
$1/M
$1/M
Cost per 1,000 pages (lower wins)
$0.58
$0.17
Context
131k tokens
131k tokens
Open weights
no
yes
Tool calling
yes
yes
Structured output
no
not published
Reads images
no
no
Reasoning
yes
yes
Released
21 Dec 2025
28 Jul 2025
Providers selling it
7
23
Price we measure against
OpenRouter
the maker's own
Trains on your prompts (no is better)
no provider to check
not published
Providers selling both · 5
NanoGPT$1 / $0.55
Kilo Gateway$1 / $1
LLMTR$1 / $1
Nous Portal$1 / $1
OpenRouter$1 / $1
Aion-2.0, then GLM-4.5, per million tokens.
Go further
Add a third or fourth model, or change the weighting, in the tool.
Frequently asked
- Which is cheaper, Aion-2.0 or GLM-4.5?
- GLM-4.5, at $0.35 per million tokens against $1 for Aion-2.0, blended 3 in : 1 out, read on 21 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. GLM-4.5: $0.35 at Submodel.
- Can I buy both from one provider?
- Yes. 5 providers sell both: NanoGPT, Kilo Gateway, LLMTR, Nous Portal, OpenRouter. The cheapest of them for the two together is NanoGPT.
- Which holds more context?
- Both hold 131k tokens in one call.
Prices exclude tax, read 21 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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