GPT-5.5 (Xhigh) vs Beam 1.0
Which is better for the money: GPT-5.5 (Xhigh) by OpenAI or Beam 1.0 by Reflection? 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
GPT-5.5 (Xhigh) scores 8.1 points higher (38.4 vs 30.3) but costs 17× as much to run the benchmark ($5294 vs $319; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.5 (Xhigh) when you need intelligence above 30.3, and Beam 1.0 when 30.3 is enough.
| Metric | GPT-5.5 (Xhigh) | Beam 1.0 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.4 | 30.3 | −21.1% Beam 1.0 is 21.1% less intelligent |
| Total AA cost (lower is better) | $5,294.36 | $318.73 | −94.0% Beam 1.0 is 94.0% cheaper |
| End-to-end time (lower is better) | 44.96s | 8.02s | −82.2% Beam 1.0 is 82.2% faster |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $0.40 / $1.20 | |
| Input modalities | Text, Image | Text |
Beam 1.0 vs GPT-5.5 (Xhigh): 21.1% less intelligence, 94.0% less cost to run the AA benchmark, and 82.2% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Beam 1.0 is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
GPT-5.5 (Xhigh)Beam 1.0Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5/reflection-beam · Markdown: /api/v1/compare/gpt-5-5/reflection-beam?format=md · llms.txt · agent skill