kitio.aiProdigy vs Sigma AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Prodigy starts at See pricing page and Sigma AI starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Model-assisted annotation
- NER and text classification
- Image and AV labeling
- LLM prompt evaluation
- spaCy training
- Custom Python recipes
- Training data creation
- Independent model evaluation
- Human review operations
- 700+ languages
- Secure training sandboxes
| Feature | Prodigy | Sigma AI |
|---|---|---|
| Best for | Scriptable annotation tool for training NLP, vision and LLM models | Human-expert data, evaluation and review for AI teams |
| Category | Data & analytics | Data & analytics |
| Pricing model | Paid | Paid |
| Starting price | See pricing page | See pricing page |
| Free plan | No | No |
| Made by | Explosion | Sigma AI |
| Based in | Germany | Spain |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Prodigy starts at See pricing page and Sigma AI starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Prodigy
- Runs fully on your own machines
- Tight integration with spaCy
- Highly scriptable workflows
- Needs command-line and Python skills
- No free tier
- You manage installation and hosting
Sigma AI
- Very wide language coverage
- Large pool of vetted experts
- Long track record in AI data
- No self-serve option
- No public pricing
- Aimed at companies building models
Which one should you choose?
Choose Prodigy if you want:
- Runs fully on your own machines
- Tight integration with spaCy
- Highly scriptable workflows
Watch out: needs command-line and python skills.
Choose Sigma AI if you want:
- Very wide language coverage
- Large pool of vetted experts
- Long track record in AI data
Watch out: no self-serve option.
Prodigy vs Sigma AI FAQ
What is the difference between Prodigy and Sigma AI?
Prodigy: Scriptable annotation tool for training NLP, vision and LLM models. Sigma AI: Human-expert data, evaluation and review for AI teams. Both are data & analytics tools.
Is Prodigy or Sigma AI cheaper?
Prodigy starts at See pricing page and Sigma AI starts at See pricing page. Check both pricing pages for current plans.
Do Prodigy and Sigma AI have free plans?
Prodigy: No. Sigma AI: No.
Who makes Prodigy?
Prodigy is made by Explosion, based in Germany.
Who makes Sigma AI?
Sigma AI is made by Sigma AI, based in Spain.
Which should I choose, Prodigy or Sigma AI?
Choose Prodigy if you value runs fully on your own machines and tight integration with spacy. Choose Sigma AI if you value very wide language coverage and large pool of vetted experts.