GPT-5.4 mini (Xhigh) vs Grok 4.3 (High)
Which is better for the money: GPT-5.4 mini (Xhigh) by OpenAI or Grok 4.3 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick Grok 4.3 (High)
Grok 4.3 (High) vs GPT-5.4 mini (Xhigh): 3.3% more intelligence, 76.2% less cost to run the AA benchmark, and 78.5% faster end-to-end.
| Metric | GPT-5.4 mini (Xhigh) | Grok 4.3 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.1 | 24.9 | +3.3% Grok 4.3 (High) is 3.3% more intelligent |
| Total AA cost (lower is better) | $1,524.02 | $363.24 | −76.2% Grok 4.3 (High) is 76.2% cheaper |
| End-to-end time (lower is better) | 115.75s | 24.88s | −78.5% Grok 4.3 (High) is 78.5% faster |
| Price per 1M tokens (in / out) | $0.75 / $4.50 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.4 mini (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Grok 4.3 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
GPT-5.4 mini (Xhigh)Grok 4.3 (High)Today's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-4-mini/grok-4-3 · Markdown: /api/v1/compare/gpt-5-4-mini/grok-4-3?format=md · llms.txt · agent skill