Claude 4 Sonnet (Reasoning) vs Claude Haiku 5.5 (Max)

Claude 4 Sonnet (Reasoning) vs Claude Haiku 5.5 (Max). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude 4 Sonnet (Reasoning)Not ranked · benchmark data missing
Intelligence
18.90
Total cost
-
AnthropicClaude Haiku 5.5 (Max)Off the frontier
Intelligence
43.40
Total cost
$330
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 Sonnet (Reasoning)Claude Haiku 5.5 (Max)Difference
Intelligence (higher is better)18.943.4+129.6% Claude Haiku 5.5 (Max) is 2.3× more intelligent
Total AA cost (lower is better)Not reported$330.25— not comparable
End-to-end time (lower is better)Not reported318.47s— not comparable
Price per 1M tokens (in / out)—$0.10 / $0.50
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude 4 Sonnet (Reasoning): what beats itClaude Haiku 5.5 (Max): 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-sonnet-thinking/claude-haiku-5-5 · Markdown: /api/v1/compare/claude-4-sonnet-thinking/claude-haiku-5-5?format=md · llms.txt · agent skill