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The developer, Andrew Boyd, is the founder of Standard Agents Inc., which sells a platform for building AI agents. Boyd initially announced the project on X with victory coming in a week. The gameplay was livestreamed, available in a browser or a terminal, with a chat that Jev moderated.
Let's go! Jev Plays Pokemon. Follow along here: https://t.co/64naxTJlDg OR, in your terminal run `npx jev-plays-pokemon` to follow along (with chat!) in a TUI. Github oAuth required to chat. Jev is the player and the chat moderator. Let's catch them all! September 17, 2026
Jev is a recently released decision model that returns solutions with a confidence figure. It is not a chatbot, and it is not an LLM. For the game, Jev refers to a list of options with facts, and it selects the best option based on probability. It doesn't read the screen and does not produce text or images. A traditional LLM, Claude Opus 5, monitored the game log to help Jev when it got stuck. This happened indirectly by modifying the options and data available to Jev.
The page's harness changelog had 474 entries, most of them a failure from the game log paired with the change made in response. Examples of mistakes include walking "into Lorelei's shut entrance 53 times," crossing one Rock Tunnel ladder "124 times in ten minutes," and losing to the Champion's Alakazam after beating all four Elite Four trainers, which forced Jev to beat all four again before it took down the Champion later that day.
Opus made adjustments for both accuracy and cost. Using notes on the model from TypeSafe, it reduced the text sent to Jev by about two-thirds and used words instead of numbers. When Jev got stuck in a loop, the harness was changed to request a decision only every six seconds instead of about once a second. Human input also existed: viewers sent tips in chat, and the helpful ones were used to improve Jev's list of options. The reliance on Opus, the developer, and the audience shows the strengths and limitations of the decision model.
TypeSafe AI's Jev offers an alternative to LLMs that claims to be 193x faster and 445x cheaper
AI enthusiast builds GPT-6 Astra-powered bot to take on Balatro's Gold Stake Black Deck
OpenAI’s GPT-6 Astra model autonomously completes Portal in 24 hours
Key considerations
- Investor positioning can change fast
- Volatility remains possible near catalysts
- Macro rates and liquidity can dominate flows
Reference reading
- https://www.tomshardware.com/tech-industry/artificial-intelligence/SPONSORED_LINK_URL
- https://www.tomshardware.com/tech-industry/artificial-intelligence/developer-says-jev-decision-model-beat-pokemon-red-in-under-a-week-non-llm-engine-succeeds-where-traditional-chatbots-stalled-for-months-but-claude-opus-5-coached-the-model-through-its-dead-ends#main
- https://www.tomshardware.com/membership
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Informational only. No financial advice. Do your own research.