Claude Haiku 5.5 (High) vs GPT-6 Luna (Xhigh)
Which is better for the money: Claude Haiku 5.5 (High) by Anthropic or GPT-6 Luna (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Claude Haiku 5.5 (High) scores 3.2 points higher (37.8 vs 34.6) but costs 1.4× as much to run the benchmark ($94.1 vs $66.8; both mid-range class). Pick Claude Haiku 5.5 (High) when the extra intelligence is worth the premium, otherwise GPT-6 Luna (Xhigh).
| Metric | Claude Haiku 5.5 (High) | GPT-6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.8 | 34.6 | −8.5% GPT-6 Luna (Xhigh) is 8.5% less intelligent |
| Total AA cost (lower is better) | $94.07 | $66.81 | −29.0% GPT-6 Luna (Xhigh) is 29.0% cheaper |
| End-to-end time (lower is better) | 26.02s | 21.27s | −18.3% GPT-6 Luna (Xhigh) is 18.3% faster |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Luna (Xhigh) vs Claude Haiku 5.5 (High): 8.5% less intelligence, 29.0% less cost to run the AA benchmark, and 18.3% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Haiku 5.5 (High) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Luna (Xhigh) is on today's frontier: nothing is both smarter and cheaper.
Claude Haiku 5.5 (High)GPT-6 Luna (Xhigh)Today's Pareto frontierEvery other model
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