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Model Comparison

kimi-k2.5vsclaude-sonnet-4.5

Model Comparison

Compare performance, benchmarks, and characteristics

kimi-k2.5

openrouter

Context262144 tokens

Input Price$0.38 / 1M tokens

Output Price$2.48 / 1M tokens

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claude-sonnet-4.5

anthropic

Context200K tokens

Input Price$3 / 1M tokens

Output Price$15 / 1M tokens

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Model Comparison

Metric	kimi-k2.5 openrouter	claude-sonnet-4.5 anthropic
Pricing
Input Price	$0.38 / 1M tokens	$3 / 1M tokens
Output Price	$2.48 / 1M tokens	$15 / 1M tokens
Capabilities
Context Window	262144 tokens	200K tokens
Capabilities	tools, reasoning	tools, reasoning
Input type	text, image	text, image
Category Scores
Overall Average	66.2	66.7
Science	81.0	77.7
Writing	71.8	66.9
Academia	67.2	63.1
Marketing	71.5	67.2
Programming	39.5	38.6
Maths	N/A	88.0
Finance	N/A	65.5
Benchmark Tests
HLE	29.4	17.3
GPQA	87.8	83.4
SciCode	49.0	44.7
MMLU-Pro	87.1	87.5
LiveCodeBench	_	71.4
AA Math Index	_	88.0
AA Coding Index	39.5	38.6
AAII	46.7	42.9

kimi-k2.5 Advantages

• Lower input token cost ($0.38 / 1M tokens vs $3 / 1M tokens)
• Larger context window (262144 tokens vs 200K tokens)

claude-sonnet-4.5 Advantages

• Higher benchmark scores (66.7 vs 66.2)

Compare openrouter/kimi-k2.5 vs anthropic/claude-sonnet-4.5