Two code & development tools, one decision. Here is the honest split.
| DeepSeek | Tabnine | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Best at | Free, capable code help and reasoning tasks without a subscription. | Companies that cannot send code to third-party clouds but still want AI completion. |
| In short | A strong open-weights model family with a free chat interface, particularly competitive at code and math. | A privacy-focused AI code completer that can run on your own infrastructure with team-trained models. |
| On Atlas | 3 starter prompts | 3 starter prompts |
Pick DeepSeek when the job is Free, capable code help and reasoning tasks without a subscription.. Pick Tabnine when the job is Companies that cannot send code to third-party clouds but still want AI completion.. Still torn? Run one real task through both free tiers. An hour of testing beats a week of reviews.
Here is my code: [paste code]. Find the three most likely bugs or edge cases, explain each in one sentence, then show the fixed code with tests.