An AI lab building intelligence beyond chat.

Joined January 2026
we announced Jev 1.14 on 10.14 at 1:14pm PT 🔥 a new and improved model, along with experimental features for our dreamers: • images • a new box type • longer context surprise, Jev was already able to see you! 👁️ BUT our bar for production-grade intelligence is quite high, so builders beware, these are preview features. enter the ~*~ danger zone ~*~ at your own risk. 🚨
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you too can learn to Jev the way @allietheicon Jevs! new cookbooks hot & fresh every week.
One of my favorite Jev patterns is "line-by-line search", where you put an entire document in state, and ask a question for each line (or paragraph). This is super useful when you want to find the most relevant line for a query. Use nouls when you expect one dominate answer, use scores when you want to highlight lines by overall relevance. The former is good for answering a specific question while the latter is good for finding all relevant passages.
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ever thought your agent was being a tool? let Jev hand it the right tool for the job instead!
Introducing Jev Router for Agentic Tools ⚡ 1. Connect your agent to 10,000+ tools and models in one MCP 2. @TypesafeAI’s Jev picks the best for your task 3. Result is 96% cheaper than Claude! Try it with zero markup now > aimlapi.com/mcp First 100 commenters will get a $10 promo code as early adopters!
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for years, better tech has meant more bloat, slower and less responsive websites and apps, confusing and confused interfaces weird how AI has continued that trend. real weird. not anymore.
Things are getting serious @typesafeai Jev now handles logins in Lightpanda's agent. It picks the username field, password field and submit button from the page. > Jev: 0.53s, 2 calls > Claude Haiku 5.5 with browser tools: 7.83s, 8 tool calls github.com/lightpanda-io/bro…
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free ice cream! today! Jev-flavored. 235 Pine St, San Francisco Tuesday, Oct. 27, 11 a.m-1:15 p.m
the people want swag. we hear you. so naturally: free ice cream instead. @Judgmentlabs is celebrating with free ice cream and we'll be serving scoops of Jev-Jam! 235 Pine St, San Francisco Tuesday, Oct. 27, 11 a.m-1:15 p.m
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Introducing Jev @typesafeai powered people-search Just $0.0089/lead, No more $600 subscriptions, Try it at treg.to/people-search - 85% cheaper than Clay - #1 on people search bench accuracy - Plugin to any agent to find anyone Fully open source, 0% markup Git Repo below 👇
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every day we're getting a little better at putting machine intelligence exactly where it belongs and every day we find one more spot it belongs show your agent Jev today
Now that the dust has settled with Jev, here's where it works well and where it falls short
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TypeSafe AI retweeted
Join LangChain + @typesafeAI on November 5th for an evening of talks on building with decision models and using them to evaluate agents. Hear from @sydneyrunkle, Seán Roche, and @allietheicon. Interested in attending? RSVP today! luma.com/iuc3ostf
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the people want swag. we hear you. so naturally: free ice cream instead. @Judgmentlabs is celebrating with free ice cream and we'll be serving scoops of Jev-Jam! 235 Pine St, San Francisco Tuesday, Oct. 27, 11 a.m-1:15 p.m
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check out what workday's been doing with Jev! link below
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bespoke agents, with bespoke knowledge bases, bespoke instructions, bespoke tool-sets, and of course, bespoke routing with Jev make your goon your very own!
It has been interesting to see all the applications of @typesafeai's Jev at @sanity_io. Like our new internal agent harness which allows anyone in the company to quickly spin up a bespoke agent. Jev is used for the router and has worked pretty well so far! We (@rostimelk, @even, and I) wrote up an in-depth post about how it's built so you can do it too. sanity.io/engineering/how-we…
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for trust issues, sometimes you need therapy but your agents need a reliable code firewall, powered by Jev
Agents have a trust problem. Today’s models can do most work. What they need is the right boundaries. In traditional software, those were set at build time. With agents, they have to be set and enforced at runtime. Today we’re introducing Composio Firewall, the runtime boundary for agents. Millions of users and developers already use Composio as the runtime for their agents - giving agents tools, auth, and sandboxed execution. Now with our agent firewall every action an agent takes is evaluated using Jev and custom SLMs tuned by Composio based on real-world usage data. The firewall strengthens that existing boundary in both directions, checking the actions agents take and the information coming back to them through Composio. The advantage of the runtime boundary is that Composio Firewall verifies that the agent respects user intent and the boundaries set by the developer and user. Additionally, this provides the safety layer required to protect the user against malicious prompt injection as well as other attacks. Composio Firewall is live now for all Composio developers. Check it out at composio.dev/firewall
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most AI companies: token factory our data team: tolkien factory
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Jev brings reliable intelligent judgment to @UiPath workflows, about an order of magnitude cheaper and faster LLM-as-a-judge-no-more
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let's be real, cookie banners were a terrible idea what should get automated away next?
We put Jev inside the Lightpanda binary and built judge() on top of it. @typesafeai No more sending a whole page to an LLM just to find out it's a cookie banner. > Blocked pages, CAPTCHAs, cookie walls, logins, paywalls, error pages, empty searches and pages still loading can all return an HTTP 200 > judge() asks a set of predefined questions and tells you if the page has real content, and what kind: article, listing, product or docs > One call, ~0.2s In the video: > 30 sites, ~14s total > Lightpanda backs off when rate-limited, accepts cookie walls, and keeps or skips each page
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the creativity and productivity coming out of @coderabbitai 's Jev hackathon was nuts. lots of great tidbits in their video!
Congrats to TypesafeAI on the Series A! At the first ever Jevathon, we watched developers build some seriously impressive apps on their new System One model. Can't wait to see what's next!
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can we offer you a TypeGlizzy in these trying times?
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hmm maybe a benchmark is okay if it makes you hungry
Is this a hot dog? find out what your favorite LLMs said over at hotdogbench.com
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