GPT-5.4 nano (Xhigh) vs Grok 4.3 (Non-reasoning)
Which is better for the money: GPT-5.4 nano (Xhigh) by OpenAI or Grok 4.3 (Non-reasoning) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-5.4 nano (Xhigh) scores 6.7 points higher (20.7 vs 14.0) but costs 1.3× as much to run the benchmark ($331 vs $250; both mid-range class). Pick GPT-5.4 nano (Xhigh) when the extra intelligence is worth the premium, otherwise Grok 4.3 (Non-reasoning).
| Metric | GPT-5.4 nano (Xhigh) | Grok 4.3 (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 20.7 | 14.0 | −32.4% Grok 4.3 (Non-reasoni… is 32.4% less intelligent |
| Total AA cost (lower is better) | $331.24 | $250.37 | −24.4% Grok 4.3 (Non-reasoni… is 24.4% cheaper |
| End-to-end time (lower is better) | 105.67s | 5.86s | −94.5% Grok 4.3 (Non-reasoni… is 94.5% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.25 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.3 (Non-reasoning) vs GPT-5.4 nano (Xhigh): 32.4% less intelligence, 24.4% less cost to run the AA benchmark, and 94.5% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.4 nano (Xhigh) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- Grok 4.3 (Non-reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
GPT-5.4 nano (Xhigh)Grok 4.3 (Non-reasoning)Today's Pareto frontierEvery other model
Matchup
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