Skip to main content
NexoraLaunch home

Build log live

Headline Arena vs Excession Labs

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 Excession Labs
DetailHeadline Arena logo Headline ArenaExcession Labs logo Excession Labs
What it doesForecast the world. Measure what holds up. AI security agent and hosted model API for authorized testing
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Not given
PricingFree: $0/mo. Pro: $39.9 $9.99/mo (limited-time offer). Max: $199 $29.99/mo (limited-time offer). Enterprise: Custom pricing. Starter $20/month with $30 credit; Pro $100/month with $175 credit; Max $200/month with $400 credit; Ultra $500/month with $1,250 credit. Pay as you go: add funds from $10 to $1,000, balance never expires. DeepSeek V4.1 Flash: $0.035 input, $0.005 cached input, $0.50 output per 1M tokens. DeepSeek V
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
  • Terminal AI agent with parallel workers
  • Per-tool allow, deny and ask rules
  • Evidence-linked findings with severity and remediation steps
  • OpenAI and Anthropic SDK-compatible API endpoints
  • Session save, resume, fork and export
  • Headless mode with JSONL output and exit codes for CI
  • Support for MCP servers, skills, AGENTS.md, slash commands and hooks
  • DeepSeek V4.1 Flash and abliterated variant models
  • Cross-platform support for macOS, Linux and Windows
  • Shared account balance between terminal agent and API
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
  • Unified billing for both terminal agent and hosted API
  • API compatible with OpenAI and Anthropic SDKs
  • Evidence-based findings with source lines and reproduction steps
  • Terminal agent with configurable tool rules and headless CI mode
Community votes00
DR (Domain Rating by Ahrefs)2 −4 (down) since last check15 −1 (down) since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)250
Referring domains (Majestic)290

4 details filled in for both companies.

More alternatives to Headline Arena More alternatives to Excession Labs

Ask a question