Claude Haiku 5.5 (Xhigh) vs GPT-5.6 Luna (Non-reasoning)
Which is better for the money: Claude Haiku 5.5 (Xhigh) by Anthropic or GPT-5.6 Luna (Non-reasoning) 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 (Xhigh) scores 25.7 points higher (41.2 vs 15.5) but costs 6.9× as much to run the benchmark ($158 vs $23.0; mid-range vs budget cost classes). They are not alternatives at one budget: pick Claude Haiku 5.5 (Xhigh) when you need intelligence above 15.5, and GPT-5.6 Luna (Non-reasoning) when 15.5 is enough.
| Metric | Claude Haiku 5.5 (Xhigh) | GPT-5.6 Luna (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 41.2 | 15.5 | −62.4% GPT-5.6 Luna (Non-rea… is 62.4% less intelligent |
| Total AA cost (lower is better) | $157.58 | $22.97 | −85.4% GPT-5.6 Luna (Non-rea… is 85.4% cheaper |
| End-to-end time (lower is better) | 71.95s | 5.19s | −92.8% GPT-5.6 Luna (Non-rea… is 92.8% 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 (Non-reasoning) vs Claude Haiku 5.5 (Xhigh): 62.4% less intelligence, 85.4% less cost to run the AA benchmark, and 92.8% 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-5.6 Luna (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
Claude Haiku 5.5 (Xhigh)GPT-5.6 Luna (Non-reasoning)Today's Pareto frontierEvery other model
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