AI unit test generator
Editorial picks for "generate unit tests with ai".
5 tools
GC
GitHub Copilot
FeaturedCoding · GPT / Claude / OpenAI o-series (configurable)
9.1
The original AI pair programmer, now with chat and agents.
Paid· Free: $0 · Pro: $10 · Pro+: $39 · Max: $100autocompletechat
KE
Keploy
Coding
7.2
Open-source AI testing platform that records real API traffic and replays it as regression tests in CI.
Freemium· Free playground (30 suites, 5 AI credits/mo); Pro $24/user/mo; Enterprise customapi-testingregression-testing
QF
Qodo (formerly CodiumAI)
Coding · Multi-model (Claude, GPT, Gemini, NVIDIA)
7.2
AI code review and test generation platform that plugs into IDEs, pull requests, and CLI with deep multi-repo context.
Freemium· Pro Team: $30 · Custom plan: ?code-reviewtest-generation
GO
GoCodeo
Coding · Multi-model (Claude 3.5/3.7, Gemini 2.5 Pro, GPT-4o, o3-mini, DeepSeek-R1)
6.9
VS Code agent that builds, tests, and debugs full-stack apps across 25+ frameworks with multiple frontier LLMs.
Freemium· Hobby: Free · Starter: US $9/ month · Pro: US $19/ monthcode-generationtest-generation
CO
Cobalt
Coding · Agent-agnostic wrapper: OpenAI Codex (via user's ChatGPT account), Claude Code, Cursor, OpenCode, Pi
An AI developer with its own cloud computer that writes code in your GitHub repo, runs the tests, and hands you a pull request.
Freemium· Public pricing not listed on the marketing site at time of review; a free 'Try Cobalt' onboarding is offered and users bring their own ChatGPT account (Plus/Pro) to power the Codex coding agent, so model-provider costs sit outside Cobalt.Async feature implementation via pull requestReproduce-and-fix bug tickets end-to-end