GPT-5.3 Codex (Xhigh) vs Grok 4.5 (High)
GPT-5.3 Codex (Xhigh) vs Grok 4.5 (High). 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.
| Metric | GPT-5.3 Codex (Xhigh) | Grok 4.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.5 | 38.8 | +19.4% Grok 4.5 (High) is 19.4% more intelligent |
| Total AA cost (lower is better) | Not reported | $1,243.85 | — not comparable |
| End-to-end time (lower is better) | 62.23s | 18.82s | −69.8% Grok 4.5 (High) is 69.8% faster |
| Price per 1M tokens (in / out) | $1.75 / $14.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-3-codex/grok-4-5 · Markdown: /api/v1/compare/gpt-5-3-codex/grok-4-5?format=md · llms.txt · agent skill