TypeSafe AI
Overview
TypeSafe AI builds System One models: models that make fast, structured
decisions inside software instead of generating text. Its first, Jev
(jev-latest, released on September 15, 2026), takes a state, any text or
JSON, and a set of named questions of three types: a choice picks one of the
labels you define, a score rates the state against an ordered rubric, and a
noul gives the probability that the answer is yes. It answers every question
in one pass, with the probabilities behind each answer and a confidence for
each choice and score, so software can act on the sure answers and send the
unsure ones to a person.
Every decision is one call, POST /v1/systemone, with the key as a Bearer
token. It is not a chat API: the body is the state, the model and the
questions, and there is no prompt or temperature. Requests are billed by
input tokens, and output tokens are free for now. The official SDKs are
typesafe-sdk for Python and @typesafe-ai/sdk for JavaScript.
Workflows
24 workflows using TypeSafe AI.
TContributed by thedogwiththedataonitTest ad drafts against your buyer personas before you spendAsks Jev whether each buyer persona would stop for, understand and believe each ad draft, ranks the drafts, and saves the grid in Notion.
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TContributed by thedogwiththedataonitSort AI answers by how they treat your brandPulls the AI answers Profound recorded for your category, labels how each one treats your brand with Jev, and saves a report in Notion.
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TContributed by thedogwiththedataonitWin back canceled customers with an offer for why they leftReads why each Stripe subscription was canceled, sorts the reason with Jev, and emails a win-back offer that fits it with Resend.
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TContributed by thedogwiththedataonitHand buyers who ask in your website chat to salesReads recent Intercom conversations, spots buying questions with Jev, and logs each buyer in HubSpot with a note and a Slack alert.
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TContributed by thedogwiththedataonitSort cold email replies by intent and answer the warm onesReads new Instantly replies, labels each one's intent with Jev, sets the lead's interest status, and drafts answers to the warm ones.
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TContributed by thedogwiththedataonitFind Reddit and HN threads where buyers ask for a toolSearches Reddit and Hacker News with Exa, keeps the posts where someone is shopping for your category with Jev, and sends them to Slack.
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TContributed by thedogwiththedataonitBreak down competitors' longest-running adsScrapes competitors' Meta Ad Library ads with an Apify Actor, labels each ad's hook and offer with Jev, and saves the patterns to Notion.
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TContributed by thedogwiththedataonitFlag churn risk and competitor talk in customer callsReads recent Gong call transcripts, scores churn risk and flags competitor and pricing talk with Jev, and posts the risky calls to Slack.
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TContributed by thedogwiththedataonitCheck drafts against your style guide before they publishReads drafts marked ready in your Notion content calendar, checks each against your style rules with Jev, and flags the ones that fail.
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TContributed by thedogwiththedataonitAttach feature requests from support chats to Linear issuesFinds feature requests in recent Intercom conversations with Jev, matches each to an open Linear issue, and attaches the customer's ask.
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TContributed by thedogwiththedataonitEmail companies whose job posts show they need your productFinds new job posts for roles you support with Exa, checks each for a real need or a competitor with Jev, and emails the hiring team.
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TContributed by thedogwiththedataonitQualify accounts against your ICP before buying contactsLists companies with Hunter, reads each homepage with Firecrawl, checks fit and business model with Jev, and finds buyers at the fits only.
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TContributed by thedogwiththedataonitScore and route every new demo requestReads new Typeform demo requests, enriches them with Apollo, scores fit and picks a route with Jev, and logs them in HubSpot.
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TContributed by thedogwiththedataonitSort contacts into buyer personas from their job titlesFinds HubSpot contacts with no persona, maps each job title to a persona and seniority with Jev, and adds them to a list per persona.
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TContributed by thedogwiththedataonitFind the buyers already in your LinkedIn connectionsReads your LinkedIn connections export, keeps the people in roles and companies you sell to with Jev, and adds them to a HeyReach campaign.
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TContributed by thedogwiththedataonitPick the best LinkedIn opener for each lead before sendingFinds leads with Crustdata, checks each lead's role and picks the opener that fits them with Jev, and adds them to that opener's campaign.
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TContributed by thedogwiththedataonitSort LinkedIn replies and answer the interested ones firstReads new HeyReach conversations, labels each reply's intent with Jev, sends approved answers to the warm ones, and alerts sales in Slack.
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TContributed by thedogwiththedataonitInvite NPS promoters with specific praise to a case studyPulls 9s and 10s from your Typeform NPS survey, picks promoters whose praise names a result with Jev, and emails each a case-study invite.
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TContributed by thedogwiththedataonitTurn referral and out-of-office replies into new leadsFinds Instantly replies that name someone else or say the lead left, finds the person's email with Hunter, and adds them to a campaign.
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TContributed by thedogwiththedataonitSort a shared inbox and hand sales leads to a repReads new Front conversations, labels each as sales, support, billing, partner or noise with Jev, then tags, assigns and alerts sales.
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TContributed by thedogwiththedataonitTell sales which new sign-ups fit your ideal customerReads new Clerk sign-ups, looks up each work domain with Apollo, scores fit and flags fakes with Jev, and saves the result in Attio.
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TContributed by thedogwiththedataonitFlag expansion asks in support tickets for account ownersFinds new Zendesk tickets that ask for seats, SSO, higher limits or another team with Jev, and notes each in HubSpot for its owner.
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TContributed by thedogwiththedataonitFlag churn risk in new support tickets for customer successReads new Zendesk tickets, scores churn risk and urgency with Jev, tags and prioritizes the risky ones, and alerts each owner in Slack.
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TContributed by thedogwiththedataonitAlert sales when an ideal-fit company browses your siteResolves anonymous PostHog visitors to companies with People Data Labs, judges fit and buying stage with Jev, and alerts sales in Slack.
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