LiveUpdated 2026-09-19 18:06 UTC

Jev VS Fable 5.1 VS GPT-6 Astra: chess

Name: Jev VS Fable 5.1 VS GPT-6 Astra: chess
Uploaded: 2026-09-16T23:55:04.000Z
Channel: AI/ML API
Description: 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.…

This is a dev post classified by Jev as Other (a launch), kept by the Dev Radar because it carries real work, not commentary.

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 s

Posted by AI/ML API (3.8k followers) 2 days ago · 2.2k likes · 532.6k views · view the original post on X. Kept by the Dev Radar as Other.

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