Claude Haiku 5.5 (Xhigh) vs GPT-6 Luna (Xhigh)
Which is better for the money: Claude Haiku 5.5 (Xhigh) 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 (Xhigh) scores 6.6 points higher (41.2 vs 34.6) but costs 2.4× as much to run the benchmark ($158 vs $66.8; both mid-range class). Pick Claude Haiku 5.5 (Xhigh) when the extra intelligence is worth the premium, otherwise GPT-6 Luna (Xhigh).
| Metric | Claude Haiku 5.5 (Xhigh) | GPT-6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 41.2 | 34.6 | −16.0% GPT-6 Luna (Xhigh) is 16.0% less intelligent |
| Total AA cost (lower is better) | $157.58 | $66.81 | −57.6% GPT-6 Luna (Xhigh) is 57.6% cheaper |
| End-to-end time (lower is better) | 59.82s | 21.27s | −64.4% GPT-6 Luna (Xhigh) is 64.4% 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 (Xhigh): 16.0% less intelligence, 57.6% less cost to run the AA benchmark, and 64.4% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Haiku 5.5 (Xhigh) 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 (Xhigh)GPT-6 Luna (Xhigh)Today's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-haiku-5-5-xhigh/gpt-6-luna-xhigh · Markdown: /api/v1/compare/claude-haiku-5-5-xhigh/gpt-6-luna-xhigh?format=md · llms.txt · agent skill