GLM-5.1 (Reasoning) vs GPT-5.3 Codex (xhigh)

GLM-5.1 (Reasoning) vs GPT-5.3 Codex (xhigh). 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.

MetricGLM-5.1 (Reasoning)GPT-5.3 Codex (xhigh)Difference
Intelligence (higher is better)27.432.5+18.6% GPT-5.3 Codex (xhigh) is 18.6% more intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)77.31s69.02s−10.7% GPT-5.3 Codex (xhigh) is 10.7% faster
Price per 1M tokens (in / out)$1.20 / $4.40$1.75 / $14.0
Input modalitiesNot reportedNot reported
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/glm-5-1/gpt-5-3-codex · Markdown: /api/v1/compare/glm-5-1/gpt-5-3-codex?format=md · llms.txt · agent skill