Best Augment Code Alternatives in 2026

CodeRabbit is an AI code review tool that automatically analyses pull requests on GitHub, GitLab, Bitbucket, and Azure DevOps, leaving line-by-line comments with severity rankings and one-click fixes. Free for open-source projects, with Pro plans starting at $24 per user per month.

GitHub Copilot is GitHub's freemium coding assistant for inline completions, chat, Agent Mode, cloud agent (issue-to-PR), CLI, and code review. As of September 2026 individuals sit on Free / Pro ($10) / Pro+ ($39) / Max ($100) with GitHub AI Credits metering chat and agents; orgs buy Business ($19/seat) or Enterprise ($39/seat). Paid plans expose a multi-model picker including GPT-5.6 Sol/Terra/Luna and Claude Sonnet 5; Free/Student use auto model selection only.

OpenAI Codex CLI is an open-source terminal agent that reads your codebase, edits files, and runs shell commands with OS-level sandboxing. Released April 2025, rewritten in Rust, free under Apache 2.0.

Sourcegraph is an AI code intelligence platform built for enterprise developers managing massive codebases. It searches across millions of repositories using regex and symbol support. Self-hosting requires significant server resources, making it less practical for small teams with limited infrastructure budgets.

Greptile is a YC W24 AI code review agent that indexes your entire codebase to review pull requests in context, not just the diff. It catches cross-file bugs and enforces team conventions that diff-scope reviewers routinely miss. Used by Brex, Nvidia, and PostHog.

Roo Code is a free, open-source VS Code extension that runs role-based AI agents (Architect, Code, Debug, Orchestrator) directly in your editor. Apache 2.0, bring-your-own-API-key, no subscription needed. Reached 3 million installs before archiving in May 2026.

Continue is a free, open-source AI coding assistant that plugs into VS Code and JetBrains. Founded by YC W23 alums Ty Dunn and Nate Sesti, it lets developers bring any LLM including local models via Ollama, making it the most flexible alternative to Cursor or GitHub Copilot.

Aider is an open-source, terminal-native AI pair programmer that wires any LLM directly into your local git repository. Every edit is auto-committed with a descriptive message. There is no subscription, no vendor lock-in, and no IDE required.

Cline is a free, open-source VS Code extension that turns any LLM into an autonomous coding agent. It can create and edit files, run terminal commands, and browse the web, but asks for explicit approval before every change. You bring your own API key.

Letta is the open-source agent framework from UC Berkeley's MemGPT research team. It gives AI agents persistent, self-editable memory using an OS-inspired three-tier architecture. Apache 2.0 with a cloud-hosted API option.