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Jev VS Fable 5.1 VS GPT-6 Astra: chess typesafe's new Jev V13 isn't...
AI/ML API@aimlapi
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Sep 17, 2026
~1 min read
Jev VS Fable 5.1 VS GPT-6 Astra: chess
typesafe's new Jev V13 isn't an LLM. it doesn't chat, doesn't explain, doesn't write code — it only makes decisions. so we made it play blitz against frontier LLMs.
the test: 5+0 blitz. every move is one API call.
Jev V13 vs Fable 5.1:
• fable outplayed it. by move 29 it was +16 in material and even promoted a second queen
• but it kept burning 6-15 seconds per move on analysis. jev answered in ~2.6s
• so fable didn't have enough time and lost
Jev V13 vs Astra:
• astra didn't bother winning on material. it mated jev in 18 moves. Qe1#, with 2:27 to spare
typesafe's new Jev V13 isn't an LLM. it doesn't chat, doesn't explain, doesn't write code — it only makes decisions. so we made it play blitz against frontier LLMs.
the test: 5+0 blitz. every move is one API call.
Jev V13 vs Fable 5.1:
• fable outplayed it. by move 29 it was +16 in material and even promoted a second queen
• but it kept burning 6-15 seconds per move on analysis. jev answered in ~2.6s
• so fable didn't have enough time and lost
Jev V13 vs Astra:
• astra didn't bother winning on material. it mated jev in 18 moves. Qe1#, with 2:27 to spare
Diogo Almeida@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 cheaper (w/ output tokens free)
• Frontier composable intelligence optimized for decisions
AFAICT the shortest path to AI-based economic revolution
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 cheaper (w/ output tokens free)
• Frontier composable intelligence optimized for decisions
AFAICT the shortest path to AI-based economic revolution
shoutout @typesafeai @OpenAI @claudeai @chesscom
