TypeSafe's Jev, a classification-only model from ex-OpenAI RLHF lead, eyes $10B valuation 9 days after $200M seed
新智元 · wechat · 2026-09-25
According to The Information, TypeSafe AI is negotiating a round of over $1 billion with investors willing to enter at a $10B+ valuation — just over a week after its $40M seed round at a $200M valuation, a 50x jump in 9 days.
Company & Founder
- Founder Diogo Almeida worked on RLHF and InstructGPT at OpenAI before founding TypeSafe in 2024 with Erik Gafni and Sasha Sheng; 20 people, launched Jev on Sept 15.
- Jev is a "SystemOne model" that does only three things: pick an option, give a score, or answer yes/no — each with a probability. It targets machine consumers (agents and software) rather than human chat. Named after the Jevons paradox: cheaper judgment means more demand.
- Pricing: $0.042 per million input tokens, free output; $5 free credits (120M tokens) for new users after the waitlist lifted Sept 20.
Traction
- Fastest model launch in Vercel AI Gateway history: within 24 hours 13% of paid teams had used it — 2x the GPT-5.6 family and 6x Fable 5.1.
- TypeSafe benchmarks: 194x faster and 445x cheaper than language models in the same workflow. Community hacks: command-safety review 5-18x faster, a 380ms tweet-folding browser plugin, a Minecraft Ender Dragon run via GPT-6 Astra + Jev for 1 cent, and one dev who lost $31,680 with an overnight Jev-powered trading bot.
Moat questions
- Together AI shipped an open-source rival tev1-4B (Qwen3.5-4B fine-tune, reportedly trained for $17); at least 7 open-source clones appeared within a week. TypeSafe's real moat may be calibration data quality and its developer base.
The $10B bet: AI's users are shifting from humans to software and agents, and "judgment" is splitting off from "generation" as its own category.
Related event: TypeSafe in Talks to Raise Over $1B at $10B+ Valuation(4 posts)→
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