GPT-5 Codex (High) vs Qwen3.5 9B (Reasoning)

GPT-5 Codex (High) vs Qwen3.5 9B (Reasoning). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5 Codex (High)Not ranked · benchmark data missing
Intelligence
24.90
Total cost
-
AlibabaQwen3.5 9B (Reasoning)Off the frontier
Intelligence
11.20
Total cost
$329
Verdict

Comparison incomplete

A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

MetricGPT-5 Codex (High)Qwen3.5 9B (Reasoning)Difference
Intelligence (higher is better)24.911.2−55.0% Qwen3.5 9B (Reasoning) is 55.0% less intelligent
Total AA cost (lower is better)Not reported$328.86— not comparable
End-to-end time (lower is better)13.09s43.21s+230.1% Qwen3.5 9B (Reasoning) is 230.1% slower
Price per 1M tokens (in / out)$1.25 / $10.0$0.14 / $0.20
Input modalitiesText, ImageText, Image, Video
Open this matchup in the interactive pickerGPT-5 Codex (High): what beats itQwen3.5 9B (Reasoning): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-codex/qwen3-5-9b · Markdown: /api/v1/compare/gpt-5-codex/qwen3-5-9b?format=md · llms.txt · agent skill