Claude Sonnet 5.5 vs Aleph Alpha Kolibri
A direct, empirical evaluation of Claude Sonnet 5.5 (Anthropic) against Aleph Alpha Kolibri (Aleph Alpha).
Claude Sonnet 5.5
Developed by Anthropic · Proprietary Frontier Dynamic Hybrid Reasoner parameters
Terminal-Bench 4.0 execution (70.6%), SWE-bench Verified coding (82.4%), GitHub Copilot multi-file edits, and low-latency autonomous agentic coding at $2/$10 pricing.
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 | Claude Sonnet 5.5 | Aleph Alpha Kolibri |
|---|---|---|
| SWE-bench Verified | 82.4% | 62.8% |
| MMLU-Pro | 88.4% | 86.4% |
| MATH-500 | 95.2% | 92.4% |
| Context Window | 1,000,000 tokens | 1,048,576 tokens (1M) |
| Input Pricing (per 1M) | $2.00 | $0.18 |
| Output Pricing (per 1M) | $10.00 | $0.55 |