co-founder @ stealth: exceptional UX but for agents, to multiply performance in long-horizon high-leverage domain ███

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Joined March 2022
Prediction: SALP will be bigger than Citadel by the end of the decade. Leopold has predicted the last two years better than anyone else - now that he can combine that with very expensive lessons in risk he will be unstoppable. He has my full confidence.
Here is the full letter Leopold sent to his LPs last night. Rumors of his demise are greatly exaggerated.
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Replying to @DataDeLaurier
it's sad the world rational became poisoned by people who call themselves "rationalists" they talk about exactly what they want in the world, never take any actions, and then never get what they want. so clearly not acting rationally
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the agi pitch of ‘it will solve cancer’ is unfortunately weak because i would gladly trade having to risk cancer vs me and all my descendants losing all economic utility until the end of time, obviously agi world needs to just miraculously great to counter losing all labor value
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I've solved this. timing: - agent time: 2m54s (API Streaming + Tool Time = Agent Time) - total time: 5m12s (includes TTFT/Compactions) - able to achieve these times because it can 1 shot almost all steps until it reaches step 30. agent cost: - $2.0516 took 35 dev hours: - building/testing/improving tools - identifying waste - correcting behaviors notes: - not a script using a predetermined path - no tools use predetermined paths to navigate the challenge - no overfit instructions - /start-challenge will be in the comments - does not exploit session storage to get codes models tested: - gemini 3 flash - opus 4.5 - opus 4.6 - codex 5.3 - gpt-oss-120b - kimi k2.5 - grok 4.1 final stack: - opus-4.6 - claude agent sdk & claude code - gemini-3-flash @adcock_brett are you still taking submissions?
Brett Adcock
@adcock_brettFeb 2
Solve this in under 5 minutes and I’ll offer you $500k/year in cash plus several million in equity I'm building a Computer-Use team, goal is to use computers better than humans No experience or PhD needed Instructions: 1. Solve all 30 challenges on this website in under 5 minutes: serene-frangipane-7fd25b.net… 2. Feel free to use any tools or vibe code it. Provide us a zip folder with instructions on how to run the agent and reproduce your results, as well your run statistics 3. The agent should be able to solve all the challenges, use browser, and provide overall metrics around time taken, token usage and token cost. Your agent must solve this challenge in under 5 minutes Email your response: [email protected] If you have any questions about this challenge, feel free to email us
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Replying to @hdevalence
I gave this feedback to the team, thank you 🙏. I reiterate you should please apply. We're trying to move businesses/companies off Opus 3, while allowing research and exploration to continue.
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I don't play favorites, except when it comes to Opus 3.
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Wow Google does it again! Gemini 2.5 Pro is super impressive. Amazing 192k result.
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Expanded context length to 192k for openai models and gemini. gemini is still consistently decent even at that length, o3 falls off dramatically at 192k.
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Big news everyone
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