Cartesia Ink WhispervsKimi K3.1 Highspeed

Cartesia Ink Whisper leads the overall Podium Score by 0.3 points (91.8 vs 91.5).Category wins: Cartesia Ink Whisper 1 — 6 Kimi K3.1 Highspeed.Cartesia Ink Whisper is the cheaper pick ($0.012/M vs $8/M per 1M output tokens). Cartesia Ink Whisper is faster (260 t/s vs 130 t/s).

Open in Compare Tool →View Cartesia Ink WhisperView Kimi K3.1 Highspeed
Cartesia Ink WhisperDrag slider or hover to compareKimi K3.1 Highspeed
Kimi K3.1 Highspeed
91.5
Coding: 60.0 · Speed: 130 t/s
Output Price: $8/M
Cartesia Ink Whisper
91.8
Coding: 0.0 · Speed: 260 t/s
Output Price: $0.012/M
Quick VerdictAggregated 2026 Benchmark Analysis

Cartesia Ink Whisper is rated higher overall with a Podium Score of 91.8 (vs 91.5 for Kimi K3.1 Highspeed). In head-to-head domain evaluations, Kimi K3.1 Highspeed outperforms in 6 of 7 benchmark categories.

Coding & Engineering
Kimi K3.1 Highspeed (60.0)
Inference Speed
Cartesia Ink Whisper (260 t/s)
Cost Efficiency
Cartesia Ink Whisper ($0.012/M)
API Price / 1M (in · out)
Cartesia Ink Whisper $0.006/M · $0.012/M — Kimi K3.1 Highspeed $1.5/M · $8/M

Choose Cartesia Ink Whisper for knowledge and factual QA, and Kimi K3.1 Highspeed for long documents and large codebases.

MetricCartesia Ink WhisperKimi K3.1 Highspeed
Podium Score91.8 ▲91.5
Arena Elo14501455 ▲
Intelligence Index92.0 ▲60.0
Coding0.060.0 ▲
Math0.088.0 ▲
Reasoning28.092.0 ▲
Agentic68.074.0 ▲
Knowledge45.0 ▲38.0
Multimodal88.090.0 ▲
Long-context45.098.0 ▲
Output speed260 t/s ▲130 t/s
Output price$0.012/M ▲$8/M
Context window64K1000K ▲
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Cartesia Ink Whisper vs Claude Mythos · Cartesia Ink Whisper vs Claude 5.5 Sonnet · Cartesia Ink Whisper vs Kimi K3.1 Pro · Cartesia Ink Whisper vs Eleven Multilingual v3
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