Tabnine

Tabnine is not competing on raw code quality and does not pretend to. It is competing on the deployment question, and there it has an answer nobody else here fully matches: run the whole thing inside your own network, air-gapped if necessary, with models that were trained only on permissively licensed code. For a defence contractor, a bank or a medical device company, that is not a preference — it is the entire buying criterion, and it removes most of this category from consideration before quality is even discussed.

The licence provenance point deserves more attention than it usually gets. Tabnine's protected models are trained exclusively on permissively licensed repositories, which means the output carries a materially lower risk of reproducing copyleft code into a proprietary product. Legal teams who have thought about this care about it a great deal, and it is one of the few technical claims in this category that is genuinely checkable.

What you pay for that is money and capability. At $39 per user per month for the assistant platform and $59 for the agentic one, this is the most expensive product in the category by a distance — three to six times Copilot — and the code it writes is good rather than exceptional. Reviewers who came from Cursor or Claude Code consistently describe a step down in output quality. There is no free tier to evaluate on, and self-hosted deployment is a project rather than an install.

Our guidance: if you can use a cloud assistant, something else here will serve you better for less. If you cannot, Tabnine is probably your answer and the price is the cost of being able to buy anything at all.