TypeSafe AI

Jev, a System One model, targets quick yes-or-no decisions that LLMs handle slowly
Amii's AI Literacy team has published an explainer on Jev, a model from TypeSafe AI built to make fast, structured decisions with probabilities rather than generate…
ResearchVoyage AI: Embeddings Cut Prediction Errors on MongoDB Data by Up to 44%
Voyage AI says its embedding models can predict missing fields in MongoDB collections more accurately than TypeSafe AI's Jev. Across 50 real-world prediction tasks, the…

Cline adds Jev decision models for fast, cheap agent guardrails and browsing
Cline has built three plugins around Jev, a Decisions model from TypeSafe AI that classifies a given state instead of generating tokens. According to Cline, Jev is…

LangChain Adds AI Search, Fine-Tuning and Custom Apps to LangSmith
LangChain used its Interrupt events in NYC and London to launch a batch of LangSmith features, including semantic trace search, a second version of Engine, and…

Vercel adds TypeSafe AI's Jev 1.14 decision model to AI Gateway
Vercel has made Jev 1.14 from TypeSafe AI available on its AI Gateway. Jev is a decision model that returns typed Choice, Score and Boolean answers with probabilities…

Modal tops $1B annualized run rate and raises $750M Series D
AI infrastructure company Modal says it has crossed $1B in annualized run rate and raised a $750M Series D at a $15.75B post-money valuation. Accel led the round…

TypeSafe AI's Jev model passes one trillion tokens in three days on Modal
TypeSafe AI's first model, Jev, scaled to more than one trillion tokens in three days after its public launch, running on Modal's serverless infrastructure, according to…

LangChain Adds Jev, a Fast System One Model for Agent Decisions
LangChain has published a guide to Jev, a new model from TypeSafe AI that does not generate text but returns typed answers and probabilities for classification-style…

Databricks launches ai_decide, a fast decision function for governed data
Databricks has launched ai_decide, a new AI Function that turns unstructured text into structured decisions over governed data. According to Databricks, it returns…

Fiddler tests TypeSafe's Jev as a fast, cheap judge for coding agent risk
Fiddler AI tested TypeSafe AI's new Jev model as a judge of coding agent risk and found it returned ratings faster and at a lower estimated cost than two general-purpose…

OpenAI's Decisions API Targets Fast Agent Choices, but Details Remain Unpublished
OpenAI's Decisions API, announced at DevDay 2026, restricts GPT-6 Luna to developer-defined questions with a finite list of answers, so agents can branch on a selection…

Jev model matches gpt-4o-mini judge on 897 of 1,000 turns, at lower cost
A model that returns probabilities for yes/no questions instead of writing text was 3.5× cheaper and 3.8× faster than a gpt-4o-mini judge on 1,000 real production turns…

LangChain Pairs TypeSafe's Jev Decision Model With LangGraph for 'Prod, Not God' Agents
LangChain has published a guide to building production agents with Jev, a decision model released by TypeSafe AI, and its own LangGraph framework. The idea is to let…