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Model Comparison

claude-opus-4.5vscogito-v2.1-671b

Model Comparison

Compare performance, benchmarks, and characteristics

claude-opus-4.5

anthropic

Context200K tokens

Input Price$5 / 1M tokens

Output Price$25 / 1M tokens

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cogito-v2.1-671b

openrouter

Context128K tokens

Input Price$1.25 / 1M tokens

Output Price$1.25 / 1M tokens

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Model Comparison

Metric	claude-opus-4.5 anthropic	cogito-v2.1-671b openrouter
Pricing
Input Price	$5 / 1M tokens	$1.25 / 1M tokens
Output Price	$25 / 1M tokens	$1.25 / 1M tokens
Capabilities
Context Window	200K tokens	128K tokens
Capabilities	tools, reasoning	reasoning
Input type	text, image	text
Category Scores
Overall Average	71.6	0.0
Maths	91.3	N/A
Finance	70.5	N/A
Science	81.3	N/A
Writing	71.2	N/A
Academia	68.2	N/A
Marketing	71.3	N/A
Programming	47.8	N/A
Benchmark Tests
HLE	28.4	_
GPQA	86.6	_
SciCode	49.5	_
MMLU-Pro	89.5	_
LiveCodeBench	87.1	_
AA Math Index	91.3	_
AA Coding Index	47.8	_
AAII	49.7	_

claude-opus-4.5 Advantages

• Higher benchmark scores (71.6 vs 0.0)
• Larger context window (200K tokens vs 128K tokens)

cogito-v2.1-671b Advantages

• Lower input token cost ($1.25 / 1M tokens vs $5 / 1M tokens)

Compare anthropic/claude-opus-4.5 vs openrouter/cogito-v2.1-671b