Kimi K3.1 HighspeedvsKimi K3

Kimi K3.1 Highspeed leads the overall Podium Score by 8.2 points (91.5 vs 83.3).Category wins: Kimi K3.1 Highspeed 4 — 3 Kimi K3.Kimi K3.1 Highspeed is the cheaper pick ($8/M vs $15/M per 1M output tokens). Kimi K3.1 Highspeed is faster (130 t/s vs 37 t/s).

Open in Compare Tool →View Kimi K3.1 HighspeedView Kimi K3
Kimi K3.1 HighspeedDrag slider or hover to compareKimi K3
Kimi K3
83.3
Coding: 61.5 · Speed: 37 t/s
Output Price: $15/M
Kimi K3.1 Highspeed
91.5
Coding: 60.0 · Speed: 130 t/s
Output Price: $8/M
Quick VerdictAggregated 2026 Benchmark Analysis

Kimi K3.1 Highspeed is rated higher overall with a Podium Score of 91.5 (vs 83.3 for Kimi K3). In head-to-head domain evaluations, Kimi K3.1 Highspeed outperforms in 4 of 7 benchmark categories.

Coding & Engineering
Kimi K3 (61.5)
Inference Speed
Kimi K3.1 Highspeed (130 t/s)
Cost Efficiency
Kimi K3.1 Highspeed ($8/M)
API Price / 1M (in · out)
Kimi K3.1 Highspeed $1.5/M · $8/M — Kimi K3 $3/M · $15/M

Choose Kimi K3.1 Highspeed for complex reasoning and analysis, and Kimi K3 for autonomous agents and tool use.

MetricKimi K3.1 HighspeedKimi K3
Podium Score91.5 ▲83.3
Arena Elo14551485 ▲
Intelligence Index60.0 ▲57.0
Coding60.061.5 ▲
Math88.0 ▲70.9
Reasoning92.0 ▲86.5
Agentic74.0100.0 ▲
Knowledge38.0 ▲19.7
Multimodal90.0 ▲83.5
Long-context98.099.2 ▲
Output speed130 t/s ▲37 t/s
Output price$8/M ▲$15/M
Context window1000K1000K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Kimi K3.1 Highspeed vs Claude Mythos · Kimi K3.1 Highspeed vs Claude 5.5 Sonnet · Kimi K3.1 Highspeed vs Kimi K3.1 Pro · Kimi K3.1 Highspeed vs Eleven Multilingual v3
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