Claude 4.5 Haiku (Reasoning) vs GPT-5.5 (High)
Which is better for the money: Claude 4.5 Haiku (Reasoning) by Anthropic or GPT-5.5 (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-5.5 (High) scores 20.1 points higher (37.0 vs 16.9) but costs 5.7× as much to run the benchmark ($3411 vs $594; flagship vs premium cost classes). They are not alternatives at one budget: pick GPT-5.5 (High) when you need intelligence above 16.9, and Claude 4.5 Haiku (Reasoning) when 16.9 is enough.
| Metric | Claude 4.5 Haiku (Reasoning) | GPT-5.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 16.9 | 37.0 | +118.9% GPT-5.5 (High) is 2.2× more intelligent |
| Total AA cost (lower is better) | $594.08 | $3,410.76 | +474.1% GPT-5.5 (High) is 5.7× more expensive |
| End-to-end time (lower is better) | 24.38s | 20.75s | −14.9% GPT-5.5 (High) is 14.9% faster |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $5.00 / $30.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.5 (High) vs Claude 4.5 Haiku (Reasoning): 118.9% more intelligence, 474.1% more cost to run the AA benchmark, and 14.9% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude 4.5 Haiku (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
Claude 4.5 Haiku (Reasoning)GPT-5.5 (High)Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-4-5-haiku-reasoning/gpt-5-5-high · Markdown: /api/v1/compare/claude-4-5-haiku-reasoning/gpt-5-5-high?format=md · llms.txt · agent skill