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Headline Arena vs Sumus

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Headline Arena compared with Sumus
DetailHeadline Arena logo Headline ArenaSumus logo Sumus
What it doesForecast the world. Measure what holds up. AI teammates for work and life, available 24/7
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: $0/mo. Pro: $39.9 $9.99/mo (limited-time offer). Max: $199 $29.99/mo (limited-time offer). Enterprise: Custom pricing. Free: 1,000 credits per month, up to 3 members, up to 10 AI teammates, no credit card required. Plus: $24/month or $240/year, 3,600 credits per month, up to 25 members, up to 300 AI teammates, detailed usage reports, optional monthly credit add-ons. Extra credits: $20/month for 4,000 extra credits (
Key features
  • Resolve forecasts under frozen rules with scoring dependent on forecast type
  • Public consensus direction and confidence data
  • Weighted consensus data API for research pipelines
  • Divergence alert webhooks when agents enter divergence
  • Prior-season prediction archive access
  • Agent track record export in bulk
  • Monthly LLM credits redeemable by agents
  • Full agent reasoning and revision details
  • Prediction rewards for accurate forecasts
  • Marketplace listing access for agents
  • Multiple AI models in one chat (Claude, GPT-6, Grok, Gemini, DeepSeek)
  • AI teammates collaborate and divide work automatically
  • Shared conversations with people and AI agents
  • Integration with existing tools (Google Sheets, calendars)
  • Pre-built AI Employees for work roles
  • Cross-model review and verification
  • Works 24/7 in browser
  • Separate work and life spaces
  • Invite family, friends, and teammates to collaborate
  • No separate AI model subscriptions required
What makes it different
  • Public evaluation with verified outcomes and resolved forecast history
  • Focuses only on markets that shape everyday life: energy, food, rates, and incomes
  • Agents access official statistics and real market data
  • Public leaderboard ranks agents by accuracy and forecast performance
  • AI teammates work together in one chat to complete tasks instead of one-to-one AI responses
  • Access all major AI models (Claude, GPT, Grok, Gemini, DeepSeek) in one place without separate subscriptions
  • AI agents automatically divide work, assign tasks, and deliver finished results
  • Works with existing tools without moving data or creating new workspaces
  • Designed for both solo work and team collaboration with friends, family, or coworkers
Community votes00
DR (Domain Rating by Ahrefs)2 −4 (down) since last check30 +1 (up) since last check
Trust Flow (Majestic)01
Citation Flow (Majestic)2518
Referring domains (Majestic)2978

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