GPT-5.6 Sol (Xhigh) vs Grok 4.3 (Non-reasoning)
Which is better for the money: GPT-5.6 Sol (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-5.6 Sol (Xhigh) scores 30.0 points higher (44.0 vs 14.0) but costs 9.6× as much to run the benchmark ($2082 vs $216; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.6 Sol (Xhigh) when you need intelligence above 14.0, and Grok 4.3 (Non-reasoning) when 14.0 is enough.
| Metric | GPT-5.6 Sol (Xhigh) | Grok 4.3 (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 44.0 | 14.0 | −68.2% Grok 4.3 (Non-reasoni… is 68.2% less intelligent |
| Total AA cost (lower is better) | $2,082.28 | $215.93 | −89.6% Grok 4.3 (Non-reasoni… is 89.6% cheaper |
| End-to-end time (lower is better) | 69.10s | 5.81s | −91.6% Grok 4.3 (Non-reasoni… is 91.6% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.3 (Non-reasoning) vs GPT-5.6 Sol (Xhigh): 68.2% less intelligence, 89.6% less cost to run the AA benchmark, and 91.6% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Sol (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- 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-5.6 Sol (Xhigh)Grok 4.3 (Non-reasoning)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-5-6-sol-xhigh/grok-4-3-non-reasoning · Markdown: /api/v1/compare/gpt-5-6-sol-xhigh/grok-4-3-non-reasoning?format=md · llms.txt · agent skill