GPT-5.6 Luna (Xhigh) vs Qwen3.5 397B A17B (Reasoning)
Which is better for the money: GPT-5.6 Luna (Xhigh) by OpenAI or Qwen3.5 397B A17B (Reasoning) by Alibaba? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-5.6 Luna (Xhigh)
Qwen3.5 397B A17B (Reasoning) vs GPT-5.6 Luna (Xhigh): 46.8% less intelligence, 424.7% more cost to run the AA benchmark, and 42.1% slower end-to-end.
| Metric | GPT-5.6 Luna (Xhigh) | Qwen3.5 397B A17B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 18.4 | −46.8% Qwen3.5 397B A17B (Re… is 46.8% less intelligent |
| Total AA cost (lower is better) | $179.33 | $940.97 | +424.7% Qwen3.5 397B A17B (Re… is 5.2× more expensive |
| End-to-end time (lower is better) | 45.86s | 65.18s | +42.1% Qwen3.5 397B A17B (Re… is 42.1% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.60 / $3.60 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Terra (Medium) scores 41.30 for $175.
- Qwen3.5 397B A17B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
GPT-5.6 Luna (Xhigh)Qwen3.5 397B A17B (Reasoning)Today'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-5-6-luna-xhigh/qwen3-5-397b-a17b · Markdown: /api/v1/compare/gpt-5-6-luna-xhigh/qwen3-5-397b-a17b?format=md · llms.txt · agent skill