Breaking: Browser Use + Jev = Ultrafast ⚡ Findings flights took 7s and cost only $0.0039 🤯 > new action space every step > DOM state space > small LLM fallback to type (this video is at 1x speed btw) Built a tiny open source browser agent. try it below ↓
API & Models
API key
The bearer credential for the TypeSafe API, created in the console and read from TYPESAFE_API_KEY by the official SDKs.
- Category
- API & Models
- Also known as
- —
- Related terms
- 4
- Directory entries
- 3
- Docs
- docs.typesafe.ai
- Added
- 2026-09-24
Definition
Requests send Authorization: Bearer <API_KEY>. A missing or invalid key returns 401 Unauthorized, and the docs treat the key as the account boundary for listing models and calling Jev.
The official SDKs read TYPESAFE_API_KEY from the environment by default, so local setup is an environment variable plus the console to create the key.
Tagsapisetup
Related terms
Definitions that connect to this one.
TypeSafe ConsoleThe web console for API keys, model management, and the playground, with walkthrough lessons and realistic use cases.API & ModelsSystem One endpointThe single HTTP endpoint that evaluates a state against typed questions: POST https://api.typesafe.ai/v1/systemone.API & ModelsAPI errorThe four documented failure statuses — 401, 422, 429, and 529 — with retry guidance for the last two.API & ModelsClient SDKThe official typed clients for the API — Python and JavaScript/TypeScript — with retries and inferred answer types.API & Models
From the directory
The raw HTTP contract behind every SDK: POST a state plus typed noul, choice, and score questions to /v1/systemone, and get one answer per question, with error codes and retry guidance.
Sites & GuidesDocs#official#docs#api
Official
Everything you need to make your first request: install an SDK, get an API key, and send state plus typed questions.
Sites & GuidesDocs#docs#official#quickstart
Official
Get an API key, manage models, and try the playground: three walkthrough lessons plus realistic use cases like resume screening and ticket routing.
Tools & IntegrationsPlayground#official#playground#api-keys
Official
From the community
Posts from builders shipping with Jev right now.
Browser Use Ultrafast, powered by Jev
A really smart switch statement
hype-free explanation of jev: jev does not replace gpt / claude jev is just a *really* smart switch statement like if 2016 ml classifiers got 2026 levels of intelligence it's a new* type of tool that will make a lot of workloads insanely fast, cheap, and accurate * = and by 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
When a designer gets Jev
when a designer gets access to Jev
Full Jev video tutorial
Full Jev Tutorial What it is, how you can build with it and what new applications it can unlock → 0:00 Intro → 0:34 Jev explained → 4:06 API setup → 5:59 Demo 1: Voice-controlled browser → 11:33 Demo 2: AI memory → 17:27 Demo 3: YouTube predictor
The case against Jev-scored compaction
This is a terrible compaction strategy that fundamentally doesn't understand how compaction and context management work. Seems like a lot of people are confused so let's break this down. 1. Compaction isn't a filter The role of compaction is to clean up history to keep the Show more
found the perfect use case for @typesafeai Jev: instant compaction in 2026, why is compaction still a summarization prompt? Jev can make it instant by scoring every tool call and dropping what’s irrelevant
Classifying rows in DuckDB
I made a DuckDB extension where you can use @typesafeai 's Jev to do quick classification of rows in any csv/parquet file or duckdb table about 10sec for 1k rows ~ better than using an LLM, way more ergonomic than a classifier game-changing for data analysis!
