GPT-6.1 Terra (Medium) vs Kimi K2.6 (Reasoning)
Which is better for the money: GPT-6.1 Terra (Medium) by OpenAI or Kimi K2.6 (Reasoning) by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-6.1 Terra (Medium)
Kimi K2.6 (Reasoning) vs GPT-6.1 Terra (Medium): 34.6% less intelligence, 704.1% more cost to run the AA benchmark, and 707.2% slower end-to-end.
| Metric | GPT-6.1 Terra (Medium) | Kimi K2.6 (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 41.3 | 27.0 | −34.6% Kimi K2.6 (Reasoning) is 34.6% less intelligent |
| Total AA cost (lower is better) | $175.20 | $1,408.86 | +704.1% Kimi K2.6 (Reasoning) is 8.0× more expensive |
| End-to-end time (lower is better) | 6.93s | 55.94s | +707.2% Kimi K2.6 (Reasoning) is 707.2% slower |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $0.95 / $4.00 | |
| Input modalities | Text, Image | Text, Image, Video |
Today's Pareto frontier
Against the frontier
- GPT-6.1 Terra (Medium) is on today's frontier: nothing is both smarter and cheaper.
- Kimi K2.6 (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-6.1 Terra (Medium)Kimi K2.6 (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-6-1-terra-medium/kimi-k2-6 · Markdown: /api/v1/compare/gpt-6-1-terra-medium/kimi-k2-6?format=md · llms.txt · agent skill