GPT-5 mini (High) vs Grok 4.3 (High)
Which is better for the money: GPT-5 mini (High) by OpenAI or Grok 4.3 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Grok 4.3 (High) scores 8.1 points higher (24.9 vs 16.8) but costs 1.9× as much to run the benchmark ($363 vs $189; both mid-range class). Pick Grok 4.3 (High) when the extra intelligence is worth the premium, otherwise GPT-5 mini (High).
| Metric | GPT-5 mini (High) | Grok 4.3 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 16.8 | 24.9 | +48.2% Grok 4.3 (High) is 48.2% more intelligent |
| Total AA cost (lower is better) | $188.66 | $363.24 | +92.5% Grok 4.3 (High) is 92.5% more expensive |
| End-to-end time (lower is better) | 58.72s | 24.88s | −57.6% Grok 4.3 (High) is 57.6% faster |
| Price per 1M tokens (in / out) | $0.25 / $2.00 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.3 (High) vs GPT-5 mini (High): 48.2% more intelligence, 92.5% more cost to run the AA benchmark, and 57.6% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5 mini (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
- 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 mini (High)Grok 4.3 (High)Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-mini/grok-4-3 · Markdown: /api/v1/compare/gpt-5-mini/grok-4-3?format=md · llms.txt · agent skill