Claude Haiku 5.5 (Max) vs GPT-5.6 Luna (Xhigh)
Which is better for the money: Claude Haiku 5.5 (Max) by Anthropic or GPT-5.6 Luna (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Trade-off
Verdict
Depends on your budget
Claude Haiku 5.5 (Max) scores 8.8 points higher (43.4 vs 34.6) but costs 1.8× as much to run the benchmark ($330 vs $179; both mid-range class). Pick Claude Haiku 5.5 (Max) when the extra intelligence is worth the premium, otherwise GPT-5.6 Luna (Xhigh).
| Metric | Claude Haiku 5.5 (Max) | GPT-5.6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 43.4 | 34.6 | −20.3% GPT-5.6 Luna (Xhigh) is 20.3% less intelligent |
| Total AA cost (lower is better) | $330.25 | $179.33 | −45.7% GPT-5.6 Luna (Xhigh) is 45.7% cheaper |
| End-to-end time (lower is better) | 354.68s | 39.18s | −89.0% GPT-5.6 Luna (Xhigh) is 89.0% faster |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.20 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.6 Luna (Xhigh) vs Claude Haiku 5.5 (Max): 20.3% less intelligence, 45.7% less cost to run the AA benchmark, and 89.0% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Haiku 5.5 (Max) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Terra (Medium) scores 41.30 for $175.
Claude Haiku 5.5 (Max)GPT-5.6 Luna (Xhigh)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-haiku-5-5/gpt-5-6-luna-xhigh · Markdown: /api/v1/compare/claude-haiku-5-5/gpt-5-6-luna-xhigh?format=md · llms.txt · agent skill