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Model Comparison

aion-2.0vsclaude-sonnet-4

Model Comparison

Compare performance, benchmarks, and characteristics

aion-2.0

openrouter

Context131072 tokens

Input Price$0.8 / 1M tokens

Output Price$1.6 / 1M tokens

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claude-sonnet-4

anthropic

Context200K tokens

Input Price$3 / 1M tokens

Output Price$15 / 1M tokens

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Model Comparison

Metric	aion-2.0 openrouter	claude-sonnet-4 anthropic
Pricing
Input Price	$0.8 / 1M tokens	$3 / 1M tokens
Output Price	$1.6 / 1M tokens	$15 / 1M tokens
Capabilities
Context Window	131072 tokens	200K tokens
Capabilities	reasoning	tools
Input type	text	text, image
Category Scores
Overall Average	0.0	60.6
Maths	N/A	74.3
Finance	N/A	56.5
Science	N/A	72.7
Writing	N/A	63.5
Academia	N/A	58.2
Marketing	N/A	64.6
Programming	N/A	34.1
Benchmark Tests
HLE	_	9.6
AIME	_	77.3
GPQA	_	77.7
SciCode	_	40.0
MATH-500	_	99.1
MMLU-Pro	_	84.2
LiveCodeBench	_	65.5
AA Math Index	_	74.3
AA Coding Index	_	34.1
AAII	_	38.7

aion-2.0 Advantages

• Lower input token cost ($0.8 / 1M tokens vs $3 / 1M tokens)

claude-sonnet-4 Advantages

• Higher benchmark scores (60.6 vs 0.0)
• Larger context window (200K tokens vs 131072 tokens)

Compare openrouter/aion-2.0 vs anthropic/claude-sonnet-4