GPT-6 Astra (Low) vs Kimi K3.1 Pro
Which is better for the money: GPT-6 Astra (Low) by OpenAI or Kimi K3.1 Pro by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Kimi K3.1 Pro scores 9.3 points higher (55.1 vs 45.8) but costs 2.0× as much to run the benchmark ($3117 vs $1537; flagship vs premium cost classes). Pick Kimi K3.1 Pro when the extra intelligence is worth the premium, otherwise GPT-6 Astra (Low).
| Metric | GPT-6 Astra (Low) | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 45.8 | 55.1 | +20.3% Kimi K3.1 Pro is 20.3% more intelligent |
| Total AA cost (lower is better) | $1,536.78 | $3,117.31 | +102.8% Kimi K3.1 Pro is 2.0× more expensive |
| End-to-end time (lower is better) | 11.63s | 42.64s | +266.6% Kimi K3.1 Pro is 266.6% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
Kimi K3.1 Pro vs GPT-6 Astra (Low): 20.3% more intelligence, 102.8% more cost to run the AA benchmark, and 266.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Astra (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
GPT-6 Astra (Low)Kimi K3.1 ProToday'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-astra-low/kimi-k3-1-pro · Markdown: /api/v1/compare/gpt-6-astra-low/kimi-k3-1-pro?format=md · llms.txt · agent skill