Claude Sonnet 5.5 (High, Default Fallback) vs Kimi K3 (Low)
Which is better for the money: Claude Sonnet 5.5 (High, Default Fallback) by Anthropic or Kimi K3 (Low) by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick Claude Sonnet 5.5 (High, Default Fallback)
Kimi K3 (Low) vs Claude Sonnet 5.5 (High, Default Fallback): 35.7% less intelligence, 15.9% more cost to run the AA benchmark, and 223.4% slower end-to-end.
| Metric | Claude Sonnet 5.5 (High, Default Fallback) | Kimi K3 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 46.8 | 30.1 | −35.7% Kimi K3 (Low) is 35.7% less intelligent |
| Total AA cost (lower is better) | $1,027.40 | $1,190.42 | +15.9% Kimi K3 (Low) is 15.9% more expensive |
| End-to-end time (lower is better) | 15.86s | 51.29s | +223.4% Kimi K3 (Low) is 223.4% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $3.00 / $15.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5.5 (High, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- Kimi K3 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Claude Sonnet 5.5 (High, Default Fallback)Kimi K3 (Low)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/claude-sonnet-5-5-high/kimi-k3-low · Markdown: /api/v1/compare/claude-sonnet-5-5-high/kimi-k3-low?format=md · llms.txt · agent skill