GPT-6 Luna (Medium) vs Qwen3.5 9B (Reasoning)
Which is better for the money: GPT-6 Luna (Medium) by OpenAI or Qwen3.5 9B (Reasoning) by Alibaba? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick GPT-6 Luna (Medium)
Qwen3.5 9B (Reasoning) vs GPT-6 Luna (Medium): 62.5% less intelligence, 955.1% more cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | GPT-6 Luna (Medium) | Qwen3.5 9B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.9 | 11.2 | −62.5% Qwen3.5 9B (Reasoning) is 62.5% less intelligent |
| Total AA cost (lower is better) | $31.17 | $328.86 | +955.1% Qwen3.5 9B (Reasoning) is 11× more expensive |
| End-to-end time (lower is better) | Not reported | 43.82s | — not comparable |
| 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 (Medium) 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 (Medium)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-medium/qwen3-5-9b · Markdown: /api/v1/compare/gpt-6-luna-medium/qwen3-5-9b?format=md · llms.txt · agent skill