GPT-5.6 Luna (Medium) vs Muse Glimmer (High)
Which is better for the money: GPT-5.6 Luna (Medium) by OpenAI or Muse Glimmer (High) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Clear winner
Verdict
Pick GPT-5.6 Luna (Medium)
Muse Glimmer (High) vs GPT-5.6 Luna (Medium): 30.0% less intelligence, 228.9% more cost to run the AA benchmark, and 325.4% slower end-to-end.
| Metric | GPT-5.6 Luna (Medium) | Muse Glimmer (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 25.0 | 17.5 | −30.0% Muse Glimmer (High) is 30.0% less intelligent |
| Total AA cost (lower is better) | $44.32 | $145.77 | +228.9% Muse Glimmer (High) is 3.3× more expensive |
| End-to-end time (lower is better) | 5.82s | 24.76s | +325.4% Muse Glimmer (High) is 325.4% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.30 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Medium) is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
- Muse Glimmer (High) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
GPT-5.6 Luna (Medium)Muse Glimmer (High)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-medium/muse-glimmer · Markdown: /api/v1/compare/gpt-5-6-luna-medium/muse-glimmer?format=md · llms.txt · agent skill