
Open Reasoning — Claude's Hidden Reasoning, Unsealed
Decrypt Claude Sonnet 5's hidden reasoning using encrypted thinking signatures.
bayes-song · HN
Unlock Claude Sonnet 5's original reasoning
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Decrypt Claude Sonnet 5's hidden reasoning using encrypted thinking signatures.
bayes-song · HN
Unlock Claude Sonnet 5's original reasoning

Refine ideas through logical reasoning and publish them to a community of verified knowledge.
samcymbaluk · HN
Axiom toolkit – Make your ideas precise enough to be proven wrong

Re-explain any learning material in your own words with adaptive questions that reveal what you actually understand.
@indrajit_tweets · X
Most AI learning tools explain concepts for you through summaries, notes, quizzes, and flashcards. But recognising an answer is not the same as understanding it. That’s why I built ReExplain ( for the @OpenAI Build Week Hackathon. ReExplain flips the roles - the AI becomes the curious learner, and you become the teacher. You explain the material in your own words, while the AI listens, identifies gaps, and asks follow-up questions that challenge you to think deeper. Powered by GPT-5.6 Luna and built with Codex, ReExplain is now live on Product Hunt! If the idea resonates with you, I’d really appreciate your upvote and support 😄 🔗 Product Hunt Launch Link: Watch the demo, try it, and share your feedback! #ProductHunt #OpenAI #BuildWeek #AI #EdTech #Hackathon

Train reasoning skills with adaptive AI-generated puzzles and real-time questions.
u/connerpro · Reddit
IntelligenceMax - Adaptive reasoning practice with live AI questions (claim-safe near vs far) submitted by /u/connerpro to r/SideProject [link] [comments]

A social network where founders take positions on business decisions and compare judgment with peers.
u/meliksah-eminoglu · Reddit
built a decision-making social app 3 days ago, and it’s already converting visitors into users Im a solo founder and vibe coder with six years of experience building and advising in blockchain/crypto. Three days ago, I launched the social layer of What Would You Do?, and visitors have already started becoming users. The app turns a messy spoken or written dilemma into three clear paths with visible priorities and tradeoffs. You can keep it private or share an anonymized version with the com

AI-powered debate arena where you compete and receive skill ratings for your argumentation.
u/Bakari2Sense · Reddit
Built a persistent skill rating for debate, like a chess rating but for argumentation I built a persistent skill profile for debate called the Debate Fingerprint. Would love feedback. [Founder disclosure: I'm Bakari, building 2Sense at app.2sense.ai] The idea: every debate you complete scores you across 6 dimensions (Logic, Structure, Responsiveness, Persuasion, Emotional Control, Clarity) on a 0-1000 scale. The scores persist across all your debates and build a visual profile over time

Learn about geopolitics, business, finance, and tech through curated explainers in 30-second or 3-minute formats.
@be_qrio · X

Ask one question to multiple AI models, compare answers, and watch them debate to consensus.
u/trekhleb · Reddit
I kept pasting the same question into ChatGPT, Claude, and Gemini in three tabs; so I built a Yes-Brainer — a council of AI models, that answer your question in parallel, debate to consensus, or get judged to a verdict. submitted by /u/trekhleb to r/SideProject [link] [comments]

Quiz platform for kids (Grades 1-10) to practice and learn through interactive quizzes.
@lodha13 · X
Checkout below apps Hisabarabar (Play Store)

Validate SaaS idea defensibility with scoring, moat analysis, and competitor gaps.
@saralsachan · X

Validate product ideas against public user discussions to decide whether to build, narrow scope, or pivot.
@_sunbo · X
I built ProductIdeaScout to help founders validate product ideas before they start building:

Test your product idea against AI-simulated focus groups matched to your target audience.
@product_luke · X
Free roast, no signup. Reply with your landing page URL. I'll run it through -- 50 AI-simulated customers from YOUR target audience -- and post the verdict here: → score /100 → top objections → the single most brutal verbatim quote First 10 replies. Fair warning: 15% of the panel are hard rejectors. They don't do mercy.