I built a voice controlled computer-use for my mac using @typesafeai's Jev and it's INSANE how fast it is! I can dictate "open the notes app and create..." and the app opens before I even finish my sentence.
Ecosystem
System One adapter
The official drop-in TypeSafeClient replacement backed by OpenAI, Anthropic, and compatible LLM APIs.
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- Ecosystem
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- github.com
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- 2026-09-24
Definition
The Python adapter answers the same typed questions using a chat model instead of Jev, so the same workflow can be run against both and compared on the same inputs. It is the recommended way to A/B a decision pipeline before committing to it.
The comparison it enables is the practical version of the docs' argument: structured workflows tend to be more accurate, cheaper, and faster than asking the same policy as a single prompt, whichever model answers.
Tagssdkevaluation
Related terms
Definitions that connect to this one.
Client SDKThe official typed clients for the API — Python and JavaScript/TypeScript — with retries and inferred answer types.API & ModelsWorkflow evalsTypeSafe's published evaluations of four automation workflows, comparing Jev and frontier LLMs as structured workflows versus single prompts.Evaluation & TrainingCoding agentThe fastest-growing corner of the Jev ecosystem: MCP servers, tool-call gates, context pruners, and skill rankers.Ecosystem
From the directory
297GitHub stars
Official drop-in TypeSafeClient replacement backed by OpenAI, Anthropic, and compatible LLM APIs, for comparing Jev against chat models on the same questions.
Repos & SDKs#official#adapter#python
From the community
Posts from builders shipping with Jev right now.
Voice-controlled computer use on a Mac
The use cases Jev unlocks
You still don't understand the use cases Jev unlocks. I've been waiting for something like this since early ChatGPT models. prediction: we will see the fastest-growing SaaS by MRR in history within the next month or two
19 open-source Jev projects
一个只会做选择题的小模型，能长出多少玩法？ TypeSafe 的 Jev 就是这么个东西：给它最多 255 个选项，几百毫秒挑一个，再附一个校准过的置信度，输出 token 免费 结果开发者们已经拿它做出了 19 个开源项目，加起来 6800 多星 挑几个最有意思的 jev-ultrafast，browser-use 出品，2700 星，一句 Show more
Jev Calc: a notebook that calculates anything
i made a smart calculator notebook using jev it can calculate ANYTHING!! 😅
Day-one notes from a skeptic, in Chinese
一些关于 Jev (@typesafeai) 的 notes 研究了一天 Jev，带来的新鲜感迅速回落，这好像就是一个更快的通用分类器/决策器，LLM 完全可以做到。 而且因为不了解模型背后的参数规模（应该不会很大），世界知识可能不一定有常规 LLM Show more
@CompleteSkeptic
After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x
Search and tagging on keep.md
Cloudflare Workers has Jev now so I'm putting it to the test on keep.md - 7x faster search rerank compared to the current hybrid - 50x faster tagging of content vs GLM 4.7 Flash with no failures
