Primary source AIX post·16 September 2026·5 min read

A ChatGPT Co-Inventor Launches Jev, a Model "Optimized for Decisions"

Diogo Almeida emerges from two years in stealth with RLCD, a novel training method, and promises of speed and cost that still need proof.

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A ChatGPT Co-Inventor Launches Jev, a Model "Optimized for Decisions"

Source : Diogo Almeida (@CompleteSkeptic) · X (Twitter) · 15 September 2026View original ↗

In brief

Diogo Almeida, who describes himself as a co-inventor of ChatGPT, announces the release of Jev, a frontier model trained with a proprietary method called RLCD, after two years of stealth development. He claims a model 20 to 200 times faster, 40 to 400 times cheaper, with free output tokens, and a "composable intelligence" geared toward decision-making rather than conversation. The announcement is circulating mainly because it hits a sensitive point: why haven't superhuman chat models produced AGI yet?

🍺 Bar-stool version

So a guy who says he co-invented ChatGPT comes out of two years of silence to announce a model 20 to 200 times faster and 40 to 400 times cheaper — a range so wide it sounds like a shipping estimate from your internet provider. No benchmark, no detail on his proprietary method, just a name: RLCD, and the idea that the real deal isn't chatting nicely but deciding fast and for almost nothing. The most interesting part isn't even the product, it's the question he's asking: if chat models have been superhuman for three years, why don't we have AGI yet — and coming from him, that stings a bit. Still, free output tokens are something you can verify in an afternoon: we'll soon know if it's a revolution or a nice press release.

Key takeaways

1
Diogo Almeida (@CompleteSkeptic), who claims to have co-invented ChatGPT, announces the release of Jev after two years in stealth.
2
The model is trained with a novel method called RLCD, presented as an alternative to current training approaches.
3
The claimed numbers are spectacular: 20 to 200x faster, 40 to 400x cheaper, with output tokens billed at zero.
4
Jev is described as a "frontier composable intelligence" optimized for decisions, not conversation.
5
The intellectual starting point of the project is an uncomfortable question: why haven't superhuman chat models led to AGI?
6
The author sees it as "the shortest path" to an AI-driven economic revolution — a claim he himself hedges with an "AFAICT".
7
No benchmarks, methodology, or technical details are provided in the announcement: everything remains to be verified.

An announcement built on a question, not a benchmark

The post doesn't open with a number or a leaderboard, but with a frustration.

The claimed numbers: speed, cost, and free output tokens

Three promises are highlighted.

"Composable intelligence": optimizing for decisions rather than conversation

The third point of the post is the most strategic: Jev is described as a "frontier composable intelligence optimized for decisions".

Why the post is going viral

The main driver of virality isn't the product: it's the signature.

Why it matters

The interest of this announcement lies less in Jev than in the thesis behind it: what if the conversational interface, which drove ChatGPT's global success, also steered an entire industry toward a local optimum?

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#ai #llm #agi #openai #startup

Original source

After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI?

Diogo Almeida (@CompleteSkeptic)

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