Claude Sonnet 5.5 (High, Default Fallback) vs Grok 4.6 (Xhigh)
Which is better for the money: Claude Sonnet 5.5 (High, Default Fallback) by Anthropic or Grok 4.6 (Xhigh) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick Claude Sonnet 5.5 (High, Default Fallback)
Grok 4.6 (Xhigh) vs Claude Sonnet 5.5 (High, Default Fallback): 5.6% less intelligence, 118.2% more cost to run the AA benchmark, and 141.4% slower end-to-end.
| Metric | Claude Sonnet 5.5 (High, Default Fallback) | Grok 4.6 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 46.8 | 44.2 | −5.6% Grok 4.6 (Xhigh) is 5.6% less intelligent |
| Total AA cost (lower is better) | $1,027.40 | $2,241.91 | +118.2% Grok 4.6 (Xhigh) is 2.2× more expensive |
| End-to-end time (lower is better) | 16.50s | 39.83s | +141.4% Grok 4.6 (Xhigh) is 141.4% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5.5 (High, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- Grok 4.6 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
Claude Sonnet 5.5 (High, Default Fallback)Grok 4.6 (Xhigh)Today's Pareto frontierEvery other model
Matchup
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