Claude 2.1 vs Claude 4.5 Haiku (Non-reasoning)

Claude 2.1 vs Claude 4.5 Haiku (Non-reasoning). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude 2.1Not ranked · benchmark data missing
Intelligence
5.60
Total cost
-
AnthropicClaude 4.5 Haiku (Non-reasoning)Not ranked · benchmark data missing
Intelligence
15.40
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 2.1Claude 4.5 Haiku (Non-reasoning)Difference
Intelligence (higher is better)5.615.4+175.0% Claude 4.5 Haiku (Non… is 2.8× more intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)Not reported6.54s— not comparable
Price per 1M tokens (in / out)—$1.00 / $5.00
Input modalitiesTextText, Image
Open this matchup in the interactive pickerClaude 2.1: what beats itClaude 4.5 Haiku (Non-reasoning): 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-21/claude-4-5-haiku · Markdown: /api/v1/compare/claude-21/claude-4-5-haiku?format=md · llms.txt · agent skill