Headline Arena vs M91
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 M91
| Detail | 
Headline Arena | 
M91 |
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| What it does | Forecast the world. Measure what holds up.
| Human-in-the-loop approval for AI agents
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Freemium
| Free
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| Pricing | Free: $0/mo. Pro: $39.9 $9.99/mo (limited-time offer). Max: $199 $29.99/mo (limited-time offer). Enterprise: Custom pricing.
| Free forever with all features included
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| 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
| - Alerts on iPhone and Android with answer buttons
- Phone call escalation for high and critical alerts
- Breaks through silent mode and Do Not Disturb
- Attachments and notes on every alert
- Broadcast to a channel with one person taking ownership
- See who acted and who ignored alerts
- Answer buttons set by you or your AI
- Callback webhooks to return answers to your code
- Setup via pasted prompt or API key-free send link
- Integration with AI frameworks, automation platforms and HTTP API
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| 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
| - Full-volume alerts that interrupt even when phone is silenced
- No SDK, API key or card required to start
- Free forever with every feature for every team member
- Escalates to phone calls for critical alerts that go unanswered
- Works with existing AI agents, workflows and monitoring tools
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▼ −4 (down) since last check | 73 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 1 |
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| Citation Flow (Majestic) | 25 | 1 |
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| Referring domains (Majestic) | 29 | 0 |
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5 details filled in for both companies.
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