Claude Sonnet 5.5 vs TypeSafe AI Jev

A direct, empirical evaluation of Claude Sonnet 5.5 (Anthropic) against TypeSafe AI Jev (TypeSafe AI (Diogo Almeida)).

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.

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 Sonnet 5.5 TypeSafe AI Jev
SWE-bench Verified 82.4% 68.4%
MMLU-Pro 88.4% 84.6%
MATH-500 95.2% 91.2%
Context Window 1,000,000 tokens 32,000 tokens
Input Pricing (per 1M) $2.00 $0.06
Output Pricing (per 1M) $10.00 $0.12