Claude Haiku 5.5 (Medium) vs GPT-6 Luna (High)
Which is better for the money: Claude Haiku 5.5 (Medium) by Anthropic or GPT-6 Luna (High) 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 (Medium) scores 1.6 points higher (34.5 vs 32.9) but costs 1.2× as much to run the benchmark ($56.4 vs $47.9; mid-range vs budget cost classes). Pick Claude Haiku 5.5 (Medium) when the extra intelligence is worth the premium, otherwise GPT-6 Luna (High).
| Metric | Claude Haiku 5.5 (Medium) | GPT-6 Luna (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.5 | 32.9 | −4.6% GPT-6 Luna (High) is 4.6% less intelligent |
| Total AA cost (lower is better) | $56.36 | $47.85 | −15.1% GPT-6 Luna (High) is 15.1% cheaper |
| End-to-end time (lower is better) | 10.41s | 12.43s | +19.4% GPT-6 Luna (High) is 19.4% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Luna (High) vs Claude Haiku 5.5 (Medium): 4.6% less intelligence, 15.1% less cost to run the AA benchmark, and 19.4% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Haiku 5.5 (Medium) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Luna (High) is on today's frontier: nothing is both smarter and cheaper.
Claude Haiku 5.5 (Medium)GPT-6 Luna (High)Today's Pareto frontierEvery other model
Matchup
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