GPT-5.6 Sol (Low) vs GPT-5 Codex (High)

GPT-5.6 Sol (Low) vs GPT-5 Codex (High). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5.6 Sol (Low)Off the frontier
Intelligence
33.50
Total cost
$637
OpenAIGPT-5 Codex (High)Not ranked · benchmark data missing
Intelligence
24.90
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.

MetricGPT-5.6 Sol (Low)GPT-5 Codex (High)Difference
Intelligence (higher is better)33.524.9−25.7% GPT-5 Codex (High) is 25.7% less intelligent
Total AA cost (lower is better)$637.28Not reported— not comparable
End-to-end time (lower is better)8.05s13.09s+62.6% GPT-5 Codex (High) is 62.6% slower
Price per 1M tokens (in / out)$4.00 / $20.0$1.25 / $10.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.6 Sol (Low): what beats itGPT-5 Codex (High): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-sol-low/gpt-5-codex · Markdown: /api/v1/compare/gpt-5-6-sol-low/gpt-5-codex?format=md · llms.txt · agent skill