ElevenLabs Eleven V4 & V4 Turbo vs Aleph Alpha Kolibri

A direct, empirical evaluation of ElevenLabs Eleven V4 & V4 Turbo (ElevenLabs) against Aleph Alpha Kolibri (Aleph Alpha).

ElevenLabs Eleven V4 & V4 Turbo

Developed by ElevenLabs · Frontier Neural Acoustic Waveform Transformer parameters

Real-time conversational voice agents (<80ms latency), 90-language studio voice cloning, granular emotional tags (<whisper>, <shout>), and 48kHz production voice synthesis.

Aleph Alpha Kolibri

Developed by Aleph Alpha · 78.2 Billion Total Parameters (32 routed experts + 2 shared experts) parameters

EU AI Act and GDPR compliant enterprise deployments, European legal and technical translation, 1M context long-document analysis, and 3.46B parameter active inference efficiency.

Metric ElevenLabs Eleven V4 & V4 Turbo Aleph Alpha Kolibri
SWE-bench Verified 0% 62.8%
MMLU-Pro 0% 86.4%
MATH-500 0% 92.4%
Context Window 128,000 characters 1,048,576 tokens (1M)
Input Pricing (per 1M) $0.15 $0.18
Output Pricing (per 1M) $0.30 $0.55