Claude Sonnet 5 (Low) vs Grok 4.3 (High)
Which is better for the money: Claude Sonnet 5 (Low) by Anthropic or Grok 4.3 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick Grok 4.3 (High)
Grok 4.3 (High) vs Claude Sonnet 5 (Low): 2.5% more intelligence, 44.3% less cost to run the AA benchmark, and 241.3% slower end-to-end.
| Metric | Claude Sonnet 5 (Low) | Grok 4.3 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.3 | 24.9 | +2.5% Grok 4.3 (High) is 2.5% more intelligent |
| Total AA cost (lower is better) | $652.70 | $363.24 | −44.3% Grok 4.3 (High) is 44.3% cheaper |
| End-to-end time (lower is better) | 8.46s | 28.87s | +241.3% Grok 4.3 (High) is 241.3% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
- Grok 4.3 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Claude Sonnet 5 (Low)Grok 4.3 (High)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-sonnet-5-low/grok-4-3 · Markdown: /api/v1/compare/claude-sonnet-5-low/grok-4-3?format=md · llms.txt · agent skill