By use case

AI Tools for Coding and Code Review (2026)

7 tools tracked · 5 active · 2 dead or at risk · Updated August 3, 2026

Code assistants are the clearest example of a category where being early was not enough. The tool that pioneered local ML-powered completion shut down entirely, while later entrants with distribution and frontier models took the market.

The consolidation has continued: at least one prominent AI editor has been acquired, and the line between "editor", "assistant", and "autonomous agent" is now mostly marketing. What matters for your team is whether the tool runs your code through a third party, and whether you can rip it out in an afternoon.

Below, each assistant carries its current verified status. Dead and acquired tools link to a full writeup of what happened and what their users switched to.

Still Active

GitHub Copilot

🟢Active

Best default for teams already on GitHub

AI pair programmer that suggests code completions in your IDE, powered by OpenAI Codex.

Code Assistant

Read the GitHub Copilot status page.

Cursor AI

🟢Active

Best AI-native editor experience

AI-first code editor built on VS Code with deep AI integration for code generation and editing.

Code Assistant

Read the Cursor AI status page.

Codeium

🟢Active

Best free-tier completion

Free AI code completion tool supporting 70+ programming languages across multiple IDEs.

Code Assistant

Read the Codeium status page or Codeium alternatives, best tools like Codeium and is Codeium dead?.

Tabnine

🟢Active

Best for privacy-sensitive codebases

AI code completion tool offering privacy-focused code suggestions that run locally.

Code Assistant

Read the Tabnine status page.

Devin (Cognition)

🟢Active

Best-known autonomous coding agent

Cognition unveiled Devin in March 2024 as 'the first AI software engineer', capable of taking a Linear ticket and shipping a pull request end-to-end. Independent reviewers (notably Carl Brown's analysis) showed the launch demo was carefully edited and that real-world success rates were modest. Cognition kept iterating and acquired Windsurf in July 2025 to give Devin a real IDE surface. The company's valuation reached $4B+ in 2025 funding rounds.

agents

Read the Devin (Cognition) status page or Devin (Cognition) alternatives, best tools like Devin (Cognition), is Devin (Cognition) dead?, what happened to Devin (Cognition) and why Devin (Cognition) failed.

Dead or At Risk

These have shut down, been abandoned, or been absorbed into another company. Check before you renew.

Windsurf

🟡Acquired / Merged

Acquired - roadmap now serves its new owner

Codeium rebranded its AI IDE as Windsurf in late 2024 and grew into one of the most-used Cursor alternatives. Google announced an unusual $2.4B licensing deal in July 2025 that took CEO Varun Mohan, co-founder Douglas Chen, and the core research team to DeepMind without buying the company. Two days later, Cognition (maker of Devin) acquired the remaining Windsurf product, IP, and employees for an undisclosed sum. Windsurf now operates as a Cognition brand.

code

Read the Windsurf status page or Windsurf alternatives, best tools like Windsurf and is Windsurf dead?.

Kite

🔴Shutdown / Dead

Shut down - pioneered local ML completion

AI-powered code completion tool that provided intelligent code suggestions in multiple IDEs.

Code AssistantShutdown: 2022

Read the Kite status page or Kite alternatives, best tools like Kite, is Kite dead?, what happened to Kite and why Kite failed.

Side-by-Side Comparison

Tool	Status	Category	Best for	Deep dive
GitHub Copilot	Active	Code Assistant	Best default for teams already on GitHub	GitHub Copilot status
Cursor AI	Active	Code Assistant	Best AI-native editor experience	Cursor AI status
Codeium	Active	Code Assistant	Best free-tier completion	Codeium alternatives
Tabnine	Active	Code Assistant	Best for privacy-sensitive codebases	Tabnine status
Devin (Cognition)	Active	agents	Best-known autonomous coding agent	Devin (Cognition) alternatives
Windsurf	Acquired / Merged	code	Acquired - roadmap now serves its new owner	Windsurf alternatives
Kite	Shutdown / Dead	Code Assistant	Shut down - pioneered local ML completion	Kite alternatives

How to Choose

→Does your code leave your machine, and is it retained for training?
→How deep is the editor lock-in if you switch?
→Is completion latency low enough that you actually keep it on?
→Does licensing cover your repository size and team seats predictably?

Frequently Asked Questions

What is the best AI coding assistant in 2026?

GitHub Copilot is the safest default for teams already on GitHub, Cursor leads for AI-native editing, and Codeium and Tabnine are the strongest options when privacy or cost is the binding constraint.

Which AI coding tools have died?

Kite shut down after pioneering local ML completion, and Windsurf was acquired. Both are listed here with their verified status and timelines.

Are autonomous coding agents production-ready?

They are genuinely useful for scoped, well-tested tasks and still unreliable for open-ended work in large legacy codebases. Treat agent output as a pull request from a fast junior developer, not a finished change.

Keep Reading: Status Checks and Alternatives

Deeper research on the tools above — shutdown reports, death-signal checks, and replacement shortlists.

Related Collections

AI Tools for Writing Blog Posts AI Tools for Transcription and Meeting Notes AI Tools for Image Generation AI Tools for Video Editing AI Tools for Presentations and Slide Decks AI Tools for Music Generation