Claude Haiku 5.5 (High) vs GPT-5.6 Luna (Xhigh)
Which is better for the money: Claude Haiku 5.5 (High) 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 2026-10-24.
Clear winner
Verdict
Pick Claude Haiku 5.5 (High)
GPT-5.6 Luna (Xhigh) vs Claude Haiku 5.5 (High): 8.5% less intelligence, 90.6% more cost to run the AA benchmark, and 18.5% slower end-to-end.
| Metric | Claude Haiku 5.5 (High) | GPT-5.6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.8 | 34.6 | −8.5% GPT-5.6 Luna (Xhigh) is 8.5% less intelligent |
| Total AA cost (lower is better) | $94.07 | $179.33 | +90.6% GPT-5.6 Luna (Xhigh) is 90.6% more expensive |
| End-to-end time (lower is better) | 26.02s | 30.83s | +18.5% GPT-5.6 Luna (Xhigh) is 18.5% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.20 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Haiku 5.5 (High) is on today's frontier: nothing is both smarter and cheaper.
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
Claude Haiku 5.5 (High)GPT-5.6 Luna (Xhigh)Today's Pareto frontierEvery other model
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