GPT-6 Astra (Low) vs Kimi K3 (Max)

Which is better for the money: GPT-6 Astra (Low) by OpenAI or Kimi K3 (Max) by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.

Clear winner

OpenAIGPT-6 Astra (Low)Off the frontier

Intelligence: 45.80
Total cost: $1537

KimiKimi K3 (Max)Off the frontier

Intelligence: 43.60
Total cost: $3658

Verdict

Pick GPT-6 Astra (Low)

Kimi K3 (Max) vs GPT-6 Astra (Low): 4.8% less intelligence, 138.0% more cost to run the AA benchmark, and 348.7% slower end-to-end.

Metric	GPT-6 Astra (Low)	Kimi K3 (Max)	Difference
Intelligence (higher is better)	45.8	43.6	−4.8% Kimi K3 (Max) is 4.8% less intelligent
Total AA cost (lower is better)	$1,536.78	$3,658.07	+138.0% Kimi K3 (Max) is 2.4× more expensive
End-to-end time (lower is better)	12.01s	53.89s	+348.7% Kimi K3 (Max) is 348.7% slower
Price per 1M tokens (in / out)	$10.0 / $50.0	$3.00 / $15.0
Input modalities	Text, Image	Text, Image

Open this matchup in the interactive picker GPT-6 Astra (Low): what beats it Kimi K3 (Max): what beats it

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 (Max) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.

GPT-6 Astra (Low)Kimi K3 (Max)Today's Pareto frontierOpen-weights frontierEvery other model

Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-astra-low/kimi-k3 · Markdown: /api/v1/compare/gpt-6-astra-low/kimi-k3?format=md · llms.txt · agent skill