GPT-5.5 Instant (June 2026) vs Grok Code Fast 1

GPT-5.5 Instant (June 2026) vs Grok Code Fast 1. 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.

MetricGPT-5.5 Instant (June 2026)Grok Code Fast 1Difference
Intelligence (higher is better)26.014.1−45.8% Grok Code Fast 1 is 45.8% less intelligent
Total AA cost (lower is better)$1,184.34Not reported— not comparable
End-to-end time (lower is better)17.49sNot reported— not comparable
Price per 1M tokens (in / out)$5.00 / $30.0—
Input modalitiesText, ImageText
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-instant-06-26/grok-code-fast-1 · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/grok-code-fast-1?format=md · llms.txt · agent skill