Delv
CodingAbandoned· 13dby Small Magellanic Cloud AI3.7

Refact.ai

Open-source AI coding agent with autocomplete, chat and agentic RAG that can be self-hosted on-premise or used as a cloud service.

B
Safety & Trust

Delv Safety Grade: B

Score 72/100 · assessed 2026-04-18

Maintainer65
Permissions55
Supply chain75
Transparency85
Incidents100

Refact.ai is an open-source coding assistant from Small Magellanic Cloud AI, a smaller vendor without the track record of major tech firms. The project offers both self-hosted and cloud deployment options, providing transparency through its GitHub repository with active development and documentation. As a coding agent with agentic RAG capabilities, it requires substantial permissions including filesystem access for reading and modifying code, network access for cloud features or self-hosted inference, and likely shell execution for build tasks. The supply chain is reasonably solid with distribution through IDE marketplaces, though the smaller maintainer base presents some bus factor risk. No security incidents are known. The self-hosting option is a positive for organisations with strict data residency requirements, but the broad permissions needed for agentic coding tasks warrant careful scoping in production environments.

Green flags

  • Fully open source with active GitHub repository and documentation
  • Self-hosting option available for data sovereignty
  • Available through official IDE marketplaces (VSCode, JetBrains)
  • Transparent about both free and paid tiers
  • No known security incidents or CVEs

Red flags

  • Smaller vendor with limited track record compared to established players
  • Agentic capabilities imply broad filesystem and execution permissions
  • Bus factor risk with smaller maintainer team
  • Cloud service option requires sending code to external servers

Permissions requested

Read filesWrite filesOutbound networkShell executeExternal LLM callRepo readRepo write
Assessed by Delv Editorial using public metadata. Grades are advisory and update as the ecosystem changes. They do not replace your own review of permissions and code before granting an agent access to sensitive systems.

Pricing

FREEMIUMFree OSS, paid cloud/enterprise

Platforms

vscodejetbrains

Review

Refact.ai sits in the awkward middle ground between Copilot and a full agentic system like Cursor's Agent mode. The autocomplete is solid, occasionally better than GitHub Copilot on Python and Rust in my tests, though it lags on TypeScript. The chat interface works as expected: you ask, it suggests, you apply. Where it tries to differentiate is the agentic RAG layer, which indexes your codebase and supposedly handles multi-file refactors with less hand-holding. In practice, the autonomy is modest. I pointed it at a Flask API that needed endpoint consolidation across four files. It proposed a plan, identified the right files, and generated diffs. But it still required me to review each change before applying, which is sensible but not meaningfully more autonomous than Cursor's multi-file edit mode. The real win is the self-hosted option. If you work in finance, healthcare, or any regulated industry where code cannot leave your infrastructure, Refact.ai is one of the few agents you can actually run on-premise without resorting to brittle local LLMs. The cloud tier uses their own fine-tuned models, which are competent but not state-of-the-art. Failure modes: it occasionally hallucinates imports that don't exist in your dependencies, and the agentic mode can get stuck in loops if your codebase has circular dependencies. The indexing also struggles with monorepos over 500k lines, though that's a common problem. Compared to Cursor, it's less polished and slower to iterate, but Cursor won't run on your own hardware. Compared to Continue.dev, Refact.ai has better out-of-the-box models and a more coherent UX, though Continue.dev offers more flexibility if you want to plug in your own LLM. I'd reach for Refact.ai when I need autocomplete and chat in a self-hosted environment, or when working on a Python or Rust project where the fine-tuned models genuinely outperform the generic alternatives. For everything else, Cursor is faster and Copilot is more reliable.
Verdict

Pay for the cloud tier if you want a Copilot alternative with better Python/Rust support and don't mind slightly rougher edges. Pay for the enterprise self-hosted version if compliance demands it. Skip it if you're already happy with Cursor or need cutting-edge agentic behaviour.

Good at

  • Self-hosted option for regulated industries where code cannot leave infrastructure
  • Fine-tuned models perform well on Python and Rust, often better than generic alternatives
  • Agentic RAG indexes your codebase and handles multi-file refactors with less manual intervention
  • Open-source core means you can audit and extend it
  • Freemium tier lets you test before committing to paid plans

Watch out

  • Agentic mode still requires manual review of each change, not meaningfully more autonomous than competitors
  • Occasionally hallucinates imports or gets stuck in loops with circular dependencies
  • Indexing struggles with monorepos over 500k lines
  • Cloud models are competent but not state-of-the-art compared to GPT-4 or Claude
  • Less polished UX and slower iteration speed than Cursor

Use cases

  • self-hosted coding
  • autocomplete
  • agentic tasks