Claude Opus 4.8 (Max) vs GPT-5.5 Instant (May 2026)

Claude Opus 4.8 (Max) vs GPT-5.5 Instant (May 2026). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

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 Opus 4.8 (Max)GPT-5.5 Instant (May 2026)Difference
Intelligence (higher is better)41.822.7−45.7% GPT-5.5 Instant (May … is 45.7% less intelligent
Total AA cost (lower is better)$6,873.86Not reported— not comparable
End-to-end time (lower is better)51.76sNot reported— not comparable
Price per 1M tokens (in / out)$5.00 / $25.0$5.00 / $30.0
Input modalitiesText, ImageText, Image
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-4-8/gpt-5-5-instant-05-26 · Markdown: /api/v1/compare/claude-opus-4-8/gpt-5-5-instant-05-26?format=md · llms.txt · agent skill