GPT-6 Luna (Low) vs Qwen3.5 9B (Reasoning)
Which is better for the money: GPT-6 Luna (Low) by OpenAI or Qwen3.5 9B (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-6 Luna (Low)
Qwen3.5 9B (Reasoning) vs GPT-6 Luna (Low): 47.9% less intelligence, 2993.7% more cost to run the AA benchmark, and 526.5% slower end-to-end.
| Metric | GPT-6 Luna (Low) | Qwen3.5 9B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 21.5 | 11.2 | −47.9% Qwen3.5 9B (Reasoning) is 47.9% less intelligent |
| Total AA cost (lower is better) | $10.63 | $328.86 | +2993.7% Qwen3.5 9B (Reasoning) is 31× more expensive |
| End-to-end time (lower is better) | 6.99s | 43.79s | +526.5% Qwen3.5 9B (Reasoning) is 526.5% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.14 / $0.20 | |
| Input modalities | Text, Image | Text, Image, Video |
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Low) is on today's frontier: nothing is both smarter and cheaper.
- Qwen3.5 9B (Reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
GPT-6 Luna (Low)Qwen3.5 9B (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-6-luna-low/qwen3-5-9b · Markdown: /api/v1/compare/gpt-6-luna-low/qwen3-5-9b?format=md · llms.txt · agent skill