Kimi K3.1 ProvsCartesia Ink Whisper

Kimi K3.1 Pro leads the overall Podium Score by 2.4 points (94.2 vs 91.8).Category wins: Kimi K3.1 Pro 6 — 0 Cartesia Ink Whisper.Cartesia Ink Whisper is the cheaper pick ($0.012/M vs $20/M per 1M output tokens). Cartesia Ink Whisper is faster (260 t/s vs 45 t/s).

Open in Compare Tool →View Kimi K3.1 ProView Cartesia Ink Whisper
Kimi K3.1 ProDrag slider or hover to compareCartesia Ink Whisper
Cartesia Ink Whisper
91.8
Coding: 0.0 · Speed: 260 t/s
Output Price: $0.012/M
Kimi K3.1 Pro
94.2
Coding: 72.0 · Speed: 45 t/s
Output Price: $20/M
Quick VerdictAggregated 2026 Benchmark Analysis

Kimi K3.1 Pro is rated higher overall with a Podium Score of 94.2 (vs 91.8 for Cartesia Ink Whisper). In head-to-head domain evaluations, Kimi K3.1 Pro outperforms in 6 of 7 benchmark categories.

Coding & Engineering
Kimi K3.1 Pro (72.0)
Inference Speed
Cartesia Ink Whisper (260 t/s)
Cost Efficiency
Cartesia Ink Whisper ($0.012/M)
API Price / 1M (in · out)
Kimi K3.1 Pro $4/M · $20/M — Cartesia Ink Whisper $0.006/M · $0.012/M

Choose Kimi K3.1 Pro for long documents and large codebases, and Cartesia Ink Whisper for cost-sensitive workloads.

MetricKimi K3.1 ProCartesia Ink Whisper
Podium Score94.2 ▲91.8
Arena Elo1490 ▲1450
Intelligence Index68.092.0 ▲
Coding72.0 ▲0.0
Math95.0 ▲0.0
Reasoning98.0 ▲28.0
Agentic82.0 ▲68.0
Knowledge45.045.0
Multimodal96.0 ▲88.0
Long-context100.0 ▲45.0
Output speed45 t/s260 t/s ▲
Output price$20/M$0.012/M ▲
Context window1000K ▲64K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Kimi K3.1 Pro vs Claude Mythos · Kimi K3.1 Pro vs Claude 5.5 Sonnet · Kimi K3.1 Pro vs Eleven Multilingual v3 · Kimi K3.1 Pro vs FLUX.2 Pro
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