GPT-6 Luna (Medium) vs Inkling 2 Small
Which is better for the money: GPT-6 Luna (Medium) by OpenAI or Inkling 2 Small by Thinking Machines? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-11-06.
Trade-off
Verdict
Depends on your budget
Inkling 2 Small scores 12.1 points higher (30.6 vs 18.5) but costs 20× as much to run the benchmark ($792 vs $39.5; premium vs budget cost classes). They are not alternatives at one budget: pick Inkling 2 Small when you need intelligence above 18.5, and GPT-6 Luna (Medium) when 18.5 is enough.
| Metric | GPT-6 Luna (Medium) | Inkling 2 Small | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 18.5 | 30.6 | +65.4% Inkling 2 Small is 65.4% more intelligent |
| Total AA cost (lower is better) | $39.55 | $791.81 | +1902.0% Inkling 2 Small is 20× more expensive |
| End-to-end time (lower is better) | 19.21s | 20.92s | +8.9% Inkling 2 Small is 8.9% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.30 / $1.00 | |
| Input modalities | Text, Image | Text, Image |
Inkling 2 Small vs GPT-6 Luna (Medium): 65.4% more intelligence, 1902.0% more cost to run the AA benchmark, and 8.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Medium) is on today's frontier: nothing is both smarter and cheaper.
- Inkling 2 Small is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 52.50 for $718.
GPT-6 Luna (Medium)Inkling 2 SmallToday's Pareto 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/inkling-2-small · Markdown: /api/v1/compare/gpt-6-luna-medium/inkling-2-small?format=md · llms.txt · agent skill