Claude Fable 5.1 (High, Default Fallback) vs Grok 4.7 (Xhigh)
Which is better for the money: Claude Fable 5.1 (High, Default Fallback) by Anthropic or Grok 4.7 (Xhigh) 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 Fable 5.1 (High, Default Fallbac… scores 4.8 points higher (51.2 vs 46.4) but costs 1.1× as much to run the benchmark ($5242 vs $4967; both flagship class). Pick Claude Fable 5.1 (High, Default Fallbac… when the extra intelligence is worth the premium, otherwise Grok 4.7 (Xhigh).
| Metric | Claude Fable 5.1 (High, Default Fallback) | Grok 4.7 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.2 | 46.4 | −9.4% Grok 4.7 (Xhigh) is 9.4% less intelligent |
| Total AA cost (lower is better) | $5,241.59 | $4,967.35 | −5.2% Grok 4.7 (Xhigh) is 5.2% cheaper |
| End-to-end time (lower is better) | 26.71s | 46.09s | +72.6% Grok 4.7 (Xhigh) is 72.6% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.7 (Xhigh) vs Claude Fable 5.1 (High, Default Fallback): 9.4% less intelligence, 5.2% less cost to run the AA benchmark, and 72.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Fable 5.1 (High, Default Fallback) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Grok 4.7 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
Claude Fable 5.1 (High, Default Fallback)Grok 4.7 (Xhigh)Today's Pareto frontierEvery other model
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