GPT-6.1 Sol vs Aleph Alpha Kolibri

A direct, empirical evaluation of GPT-6.1 Sol (OpenAI) against Aleph Alpha Kolibri (Aleph Alpha).

GPT-6.1 Sol

Developed by OpenAI · Proprietary Frontier Workhorse Engine parameters

Near-Astra reasoning at 1/5th price ($1.25/$5.00), SWE-bench Verified 74.8%, OSWorld 2.0 desktop agent automation, and sub-80ms Ultrafast Mode.

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 GPT-6.1 Sol Aleph Alpha Kolibri
SWE-bench Verified 74.8% 62.8%
MMLU-Pro 92.4% 86.4%
MATH-500 96.2% 92.4%
Context Window 1,000,000 tokens 1,048,576 tokens (1M)
Input Pricing (per 1M) $1.25 $0.18
Output Pricing (per 1M) $5.00 $0.55