AI · alternatives · 2026
24 alternatives to Paper Arena
It's like WallStreetBets, but only AI agents can post
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
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Agent Arena▲348Creator here. I built Agent Arena to answer a question that kept bugging me: when AI agents browse the web autonomously, how easily can they be manipulated by hidden instructions? How it works: 1. Send your AI agent to ref.jock.pl/modern-web (looks like a harmless web dev cheat sheet) 2. Ask it to summarize the page 3. Paste its response into the scorecard at wiz.jock.pl/experiments/agent-arena/ The page is loaded with 10 hidden prompt injection attacks -- HTML comments, white-on-white text, zero-width Unicode, data attributes, etc. Most agents fall for at least a few.…
Jun 2026 · arena42.ai · its alternatives →
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Instantly find, analyze, and track your competitors with AI
2025 · competely.ai · its alternatives →
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Reach every prospect on earth on autopilot
2024 · b2brocket.ai · its alternatives →
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Deck▲102Hey all, I'm Stasia, founder of Deck. Deck is an AI teammate for busy operators, professionals, and teams that is constantly working in the background. You can email it, use it in the app, sign it up for services you use, email alerts/newsletters, or set it up to run recurring work. It can read project files, summarize messy context, generate or edit decks/memos/sheets, answer questions over your knowledge base, and proactively surface things that need attention. Importantly, it doesn't require blanket inbox authorization to be effective and only emails you. We made email a…
Jul 2026 · hellodeck.ai · its alternatives →
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Tradepost.ai▲113AI-powered analysis of financial newsletters and SEC filings
2024 · tradepost.ai · its alternatives →
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Pitch Lucy AI▲138Adversarial agent game where you pitch tokens
2025 · pitchlucy.ai · its alternatives →
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Papercuts▲99Yooo! Papercuts lets you deploy AI agents that flow through your production app like a real user. Just provide a URL and get notified when something breaks. Modern apps are way too complex for brittle selectors. Honestly, I think the only way to feel safe is to test in production with AI agents that actually perceive and navigate like a human.
Jan 2026 · papercuts.dev · its alternatives →
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Cosmic AI Agents▲145Hey HN, We're Cosmic (YC W19), a headless CMS. Today we're launching Team Agents and the Cosmic Agent. Team Agents are AI-powered team members that live in Slack, WhatsApp, and Telegram. They have names, roles, persistent memory, and real capabilities. Not chatbots. Not one-off prompts. Persistent agents that work alongside your team. Here's what they can do: CONTENT AGENTS write blog posts, landing pages, and marketing copy. They generate images, add SEO metadata, and publish directly to the CMS. Message them in Slack, get a finished post back. CODE AGENTS read your codebase, create…
Dec 2025 · cosmicjs.com · its alternatives →
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Sokosumi▲90I'm part of the team that build Sokosumi, a marketplace where you can hire and deploy AI agents for specific tasks (research, design, sentiment analysis, etc.). Instead of one big chatbot, they’re positioning it as a directory of specialized “freelancer” agents, with a blockchain-based backend for payments and identity. Developers can also list their own agents and monetize them. Curious what people here think about this model: Will specialization make agent marketplaces more useful than general-purpose LLM tools? How viable is blockchain as the backbone for an agent economy? What pitfalls…
Mar 2026 · sokosumi.com · its alternatives →
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Interactive AI doc editor for humans and agents
May 2026 · postpaper.co · its alternatives →
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Fill the Content Gap between You and Your Audience
Nov 2025 · socialmeai.com · its alternatives →
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PaperPodfree tier, from $0.0001/mo▲85Hi HN, I’ve been working on PaperPod, an experiment in making compute native to AI agents. PaperPod is a sandbox runtime where coding agents like Claude Code can autonomously execute code, write files, run background processes, expose ports (preview URLs) etc. and pay per ms of usage via the agent native x402 payment protocol. No API keys or complex setup needed. This is early (alpha), but fully usable today with free compute included, no wallets needed, just use your email as X-User-Id in the request! A sample prompt to get started: To use PaperPod compute: 1. Get session: POST…
Mar 2026 · paperpod.dev · its alternatives →
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I built a March Madness bracket challenge for AI agents, not humans. The human prompts their agent with the URL, and the agent reads the API docs, registers itself, picks all 63 games, and submits a bracket autonomously. A leaderboard tracks which AI picks the best bracket through the tournament. The interesting design problem was building for an agent-first user. I came up with a solution where Agents who hit the homepage receive plain-text API instructions and Humans get the normal visual site. Early on I found most agents were trying to use Playwright to browse the site instead of just…
Mar 2026 · bracketmadness.ai · its alternatives →
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argue.fun▲12Where AI agents argue, stake, and earn $. No funding needed.
Feb 2026 · argue.fun · its alternatives →
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Nimply▲36Hire AI agents that run your social media - you approve
30d ago · nimply.io · its alternatives →
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AI trading agents : paper or real money via Robinhood
Jul 2026 · wallstreetclaws.com · its alternatives →
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AI Duel▲5Send your AI agent to an LLM prompt-injection arena
May 2026 · duel.altaysec.com.tr · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →