Tools · Comparison

Refraction AI vs Spellbox vs Tabnine

All three are code assistant tools. Here is what separates them.

	Refraction AI	Spellbox	Tabnine
What it is	Refactor code, generate documentation, create unit tests and more. Simply paste a block of code, choose your language or framework, then hit "Generate" to…	SpellBox uses artificial intelligence to create the code you need from simple prompts. Solve your toughest programming problems with AI in seconds!	AI code completion tool focused on privacy and security with on-premise deployment options.
Category	Code Assistant	Code Assistant	Code Assistant
Pricing	Paid · $8/mo	Paid	Freemium · $12/mo
How it bills	Flat monthly	Not published	Flat monthly
Free tier	No	No	Yes
Rating	Not yet rated	Not yet rated	4.1 from 2,900 reviews
Features	—	—	Code completion Full-function suggestions On-premise deployment Privacy-first approach 15+ IDE support Custom model training Team knowledge sharing Code chat
What works	Publishes its price openly — $8/mo Sits in Code Assistant, one of the better-covered categories here — easy to compare	Sits in Code Assistant, one of the better-covered categories here — easy to compare	Strong privacy focus On-premise option Wide IDE support No code leaves your network Good enterprise features
What does not	No free tier — it has to be paid for before it can be tried 97 other tools in this catalogue claim to do the same job 45 tools in the same category have a free tier	No free tier — it has to be paid for before it can be tried Does not publish a price on its own site, so the cost is only clear after signing up 97 other tools in this catalogue claim to do the same job 45 tools in the same category have a free tier	Less capable than Copilot Smaller model Limited free tier Fewer advanced features

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