AI Code Generator compared with GitHub Copilot, ChatGPT and Tabnine| AI Code Generator | GitHub Copilot | ChatGPT | Tabnine |
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| Access and cost: The tool is free and the page states a temporary input limit of 10000 characters (20000 when logged in) plus a daily limit for each user. The operator says keeping the site free carries a daily running cost. No paid tier is mentioned. | Access and cost: GitHub lists a Free plan and paid plans (Pro, Pro+ and Max). The Free plan is limited to 2000 completions and 50 chat requests. | Access and cost: OpenAI lists a Free plan with unlimited text chats under abuse guardrails, plus Go, Plus, Pro, Business and Enterprise plans. Use of Codex is limited on Free and Go and included on Plus. | Access and cost: Tabnine documentation lists Starter, Pro and Enterprise plans. Current prices were not verified here. |
| Input and output: You describe the requirement in a spoken language and receive code in a language of your choice. Variants include plain code, code with explanation, code with error handling, and shortest code. Examples cover C#, Python, SQL Server and Excel formulas. | Input and output: The service offers inline suggestions (completions), chat and an agent mode, including on the Free plan. Cloud agent, code review and MCP server integration are not part of Free. | Input and output: The service is a general chat assistant. Code edits on macOS are available on all plans, and data analysis is limited on Free. | |
| Where it is used: It runs as a web form, so nothing is installed in the development environment and the generated code is copied out by hand. | Where it is used: It works inside editors such as VS Code, Visual Studio, JetBrains IDEs, Xcode, Neovim, Eclipse, SQL Server Management Studio and Zed, and also through a CLI and on github.com. | Where it is used: It is used in the chat interface and in desktop apps, with plugins available on all plans. | |
| Deployment and data control: The page links a privacy policy but does not state how inputs and outputs are stored or for how long, so confidential source code should not be pasted without reading it. | | | Deployment and data control: Tabnine documents a secure SaaS option on all plans. VPC, on-premises and fully air-gapped installations are listed for Enterprise only, which matters for restricted engineering environments. |