JEV Releases and Updates
JEV Multimodal Capability Rollout Timeline
TypeSafe gates experimental image and box capabilities behind opt-in headers.
By Tariq Osei-Mensah
Monday, November 2, 2026A blog and newsletter on JEV report.
JEV Releases and Updates
JEV Version History and Capability Progression
How five architectural stages transformed a simple evaluator into a production rule engine.
JEV Benchmarks
JEV Performance on MMLU Across Model Versions
Jev's math scores reveal benchmark quirks, not genuine reasoning ability.
JEV Releases and Updates
JEV Fine-Tuning API Changes Across Versions
TypeSafe's versioning changes affect SDK interfaces and routing logic, not the frozen model itself.
JEV Explained
JEV Safety and Alignment Approach
Jev's constrained outputs and calibrated confidence aim to fix safety flaws baked into LLM training.
JEV Explained
JEV Safety and Alignment Approach
Jev's constrained outputs and calibrated confidence aim to fix safety flaws baked into LLM training.
JEV Model Variants and Size Tradeoffs
Size determines how much a JEV can carry, where it can go, and what it costs to operate.
JEV Reasoning Modes and When to Use Each
Three decision modes optimized for different types of judgment calls.
JEV Tokenization and Language Coverage
Jev's tokenization handles multilingual input but limits state to 32,000 tokens per request.
JEV Releases and Updates
JEV Version History and Capability Progression
How five architectural stages transformed a simple evaluator into a production rule engine.
JEV Fine-Tuning API Changes Across Versions
TypeSafe's versioning changes affect SDK interfaces and routing logic, not the frozen model itself.
What Changed in the Latest JEV Release
Jev's tooling grew fast while the model stayed fixed at one version.