Skip to main content

AI Detector vs Optima

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

AI Detector compared with Optima
DetailAI Detector logo AI DetectorOptima logo Optima
What it doesFree AI content detector with sentence-level insights, no signup required Build custom benchmarks to compare frontier models on performance, cost, and time efficiency for your specific tasks
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFree Not given
PricingFree to use with unlimited checks and no signup required. Token usage for creating and running benchmarks at raw model cost. Rubric grading: $0.002 per criterion per model (standard judges) or $0.040 per criterion (premium judges), $0.10 on agentic tasks. Pairwise grading: $0.006 per match (standard, $0.150 premium), $0.015 per match on document tasks (sta
Key features
  • AI probability score
  • Sentence-level analysis
  • No account creation required
  • Independent from official Copyleaks platform
  • Fast analysis in seconds
  • Works with essays, articles, emails, reports and assignments
  • Custom benchmark builder with example-driven task creation
  • Multiple evaluation types: Q&A, document analysis, agentic tasks, interactive conversations
  • Run benchmarks across multiple frontier models simultaneously
  • Cost and time per task metrics
  • Standard and premium judge tiers for grading
  • Rubric grading with custom criteria
  • Deterministic objective grading
  • No markup on model token costs
What makes it different
  • Free alternative to Copyleaks with no signup or credits needed
  • Sentence-level insights instead of just an overall score
  • Built for responsible review with human judgment at the center
  • Fast, low-friction workflow directly from the homepage
  • Build benchmarks on your actual tasks and data instead of standardized tests
  • Compare models across performance, cost, and time efficiency simultaneously
  • Grading expertise from major AI evaluations
Community votes00
DR (Domain Rating by Ahrefs)1 −1 (down) since last check84 −1 (down) since last check
Trust Flow (Majestic)328
Citation Flow (Majestic)2459
Referring domains (Majestic)2317353

4 details filled in for both companies.

More alternatives to AI Detector More alternatives to Optima

Help centre