Claude Opus 5.5 vs TypeSafe AI Jev
A direct, empirical evaluation of Claude Opus 5.5 (Anthropic) against TypeSafe AI Jev (TypeSafe AI (Diogo Almeida)).
Claude Opus 5.5
Developed by Anthropic · Proprietary Frontier Reasoner parameters
Autonomous enterprise codebase migrations, GitHub Copilot multi-file edits, SWE-bench Pro issue resolution (89.9%), and CodeRabbit automated reviews.
TypeSafe AI Jev
Developed by TypeSafe AI (Diogo Almeida) · Non-Autoregressive System 1 Transformer parameters
Sub-15ms operational tasks, 100% schema-valid JSON extraction, deterministic tool dispatch, and high-throughput agent routing.
| Metric | Claude Opus 5.5 | TypeSafe AI Jev |
|---|---|---|
| SWE-bench Verified | 89.9% | 68.4% |
| MMLU-Pro | 92.4% | 84.6% |
| MATH-500 | 97.2% | 91.2% |
| Context Window | 500,000 tokens | 32,000 tokens |
| Input Pricing (per 1M) | $4.00 | $0.06 |
| Output Pricing (per 1M) | $20.00 | $0.12 |