Claude 4.5 Sonnet (Reasoning) vs Kimi K2 Thinking

Claude 4.5 Sonnet (Reasoning) vs Kimi K2 Thinking. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude 4.5 Sonnet (Reasoning)Off the frontier
Intelligence
20.70
Total cost
$1501
KimiKimi K2 ThinkingNot ranked · benchmark data missing
Intelligence
22.00
Total cost
-
Verdict

Comparison incomplete

A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

MetricClaude 4.5 Sonnet (Reasoning)Kimi K2 ThinkingDifference
Intelligence (higher is better)20.722.0+6.3% Kimi K2 Thinking is 6.3% more intelligent
Total AA cost (lower is better)$1,501.22Not reported— not comparable
End-to-end time (lower is better)20.89s22.40s+7.2% Kimi K2 Thinking is 7.2% slower
Price per 1M tokens (in / out)$3.00 / $15.0$0.60 / $2.50
Input modalitiesText, ImageText
Open this matchup in the interactive pickerClaude 4.5 Sonnet (Reasoning): what beats itKimi K2 Thinking: what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-4-5-sonnet-thinking/kimi-k2-thinking · Markdown: /api/v1/compare/claude-4-5-sonnet-thinking/kimi-k2-thinking?format=md · llms.txt · agent skill