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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Nyckel
✓ verifiedFreemium
A machine-learning API platform for building custom classification, detection and segmentation models that learn from your examples.
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DeepSeek
✓ verifiedFreemium
Chinese AI lab DeepSeek offering free chat apps and low-cost API access to its frontier V-series and R-series reasoning models.
430M visits/mo
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Code Arena
✓ verifiedFree
Side-by-side arena to compare AI coding models and build multi-file apps, with a public leaderboard and battle mode.
35M visits/mo201 saves
Pricing
Free: $0/mo (100 invokes/mo, up to 5 functions)
Starter: $149/mo (15,000 invokes/mo, custom trained models)
No public pricing
No public pricing
Core features
- ✦Custom classifiers trained from your examples
- ✦Support for image, text and structured data
- ✦Pretrained/premade classifiers
- ✦Production API with fast inference
- ✦Confidence scores and prediction review
- ✦Invoke capture for real-world testing
- ✦Free DeepSeek chat (web and app)
- ✦Open API platform
- ✦V-series and R-series reasoning models
- ✦DeepSeek-V4 with long context and stronger agent ability
- ✦OpenAI/Anthropic-compatible API
- ✦Extensive published model lineup
- ✦Head-to-head model comparison
- ✦Battle mode matchups
- ✦Public model leaderboard
- ✦Multi-file app generation
- ✦File uploads as input
Use cases
- →Content moderation
- →Spam and scam detection
- →Fraud detection
- →Defect detection
- →Product and image auto-tagging
- →Ticket routing and sentiment analysis
- →Free AI chat and assistance
- →Building apps via API
- →Reasoning and coding tasks
- →Low-cost LLM inference
- →Choosing the best coding model
- →Benchmarking AI code quality
- →Prototyping small apps
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