Claude Opus 5 (Xhigh) vs Grok 4.3 (Non-reasoning)
Which is better for the money: Claude Opus 5 (Xhigh) by Anthropic 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
Claude Opus 5 (Xhigh) scores 35.7 points higher (49.7 vs 14.0) but costs 27× as much to run the benchmark ($5868 vs $216; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Opus 5 (Xhigh) when you need intelligence above 14.0, and Grok 4.3 (Non-reasoning) when 14.0 is enough.
| Metric | Claude Opus 5 (Xhigh) | Grok 4.3 (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 49.7 | 14.0 | −71.8% Grok 4.3 (Non-reasoni… is 71.8% less intelligent |
| Total AA cost (lower is better) | $5,867.76 | $215.93 | −96.3% Grok 4.3 (Non-reasoni… is 96.3% cheaper |
| End-to-end time (lower is better) | 40.34s | 5.81s | −85.6% Grok 4.3 (Non-reasoni… is 85.6% faster |
| Price per 1M tokens (in / out) | $5.00 / $25.0 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.3 (Non-reasoning) vs Claude Opus 5 (Xhigh): 71.8% less intelligence, 96.3% less cost to run the AA benchmark, and 85.6% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Grok 4.3 (Non-reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Claude Opus 5 (Xhigh)Grok 4.3 (Non-reasoning)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/claude-opus-5-xhigh/grok-4-3-non-reasoning · Markdown: /api/v1/compare/claude-opus-5-xhigh/grok-4-3-non-reasoning?format=md · llms.txt · agent skill