What is Refact?
Refact is an open source AI coding assistant and autonomous coding agent that ranked first on the SWE-bench benchmark, which measures the ability of AI systems to resolve real-world GitHub issues from major open source repositories.
This benchmark performance provides an objective reference point for comparing Refact's autonomous coding capability against other AI coding tools, grounding the evaluation in a standardized test set rather than marketing claims alone.
The open source architecture allows development teams to inspect, modify, and extend the platform, and to self-host it on their own infrastructure for full control over code and data.
Project-aware retrieval-augmented generation is a core technical feature that gives Refact context about the full project codebase rather than limiting its understanding to the current file or selection.
By indexing the project structure, dependencies, and code patterns, the RAG system allows Refact to make suggestions that are consistent with the existing codebase conventions, avoid introducing duplicate functionality, and understand how code changes in one area may affect other parts of the project.
This project awareness is the practical difference between a code completion tool and a coding assistant that understands the project it is working within.
Code completion operates at the inline level, providing suggestions as the developer types within their IDE of choice.
The completion engine draws on both the project-wide context from the RAG index and the immediate surrounding code to generate completions that fit both the local syntax and the broader project patterns.
Key Features
✓Number One Ranking On Swe-Bench For Autonomous Code Issue Resolution
✓Project-Aware Rag Indexing The Full Codebase For Context-Aware Suggestions
✓Ai Code Completion At Inline Suggestion Level Across 25-Plus Languages
✓Natural Language Code Refactoring Across Rename, Restructure, And Optimization Tasks
✓Autonomous Coding Agent For Multi-File Coordinated Code Changes
✓Github, Docker, And Postgresql Integrations
✓Open Source With Self-Hosting Option For Data Security
✓Free 2000 Coins Per Month And Pro Plan At $10 Per Month
Who is Refact for?
→Software developers who want a project-aware AI coding assistant with RAG context across their full codebase rather than single-file suggestions
→Development teams who need an open source self-hostable AI coding agent for data security and infrastructure control
→Engineers building features across multiple files who want an autonomous coding agent that can coordinate changes across a project
→Developers who want benchmark-validated AI coding assistance with SWE-bench number one ranking for real-world issue resolution
→Individual developers and small teams who want capable AI coding assistance at low cost with 2000 free monthly coins and Pro at $10 per month
Frequently Asked Questions
What does the SWE-bench number one ranking mean for Refact?
SWE-bench is a standardized benchmark that measures how well AI systems resolve real-world GitHub issues drawn from major open source repositories. It tests autonomous code change capability rather than code generation quality in isolation, making it a relevant measure for AI coding agents. Refact ranking first on this benchmark means it outperformed other AI coding tools on a standardized set of real-world coding tasks at the time of evaluation, providing an objective performance reference beyond marketing materials.
What is project-aware RAG in Refact?
Project-aware retrieval-augmented generation in Refact indexes the full project codebase and uses that index to provide context-aware code suggestions. When generating completions or handling agent tasks, Refact retrieves relevant context from across the project rather than working only from the currently open file. This allows Refact to understand project conventions, existing implementations, and cross-file dependencies when making suggestions, reducing the risk of duplicate code or suggestions that conflict with other parts of the codebase.
Can Refact be self-hosted?
Yes. Refact is open source and can be self-hosted on the organization's own infrastructure. Self-hosting removes the coin-based usage limit that applies to the cloud-hosted version and keeps all code and model inference within the organization's controlled environment. This is relevant for teams with data security requirements that prevent sending code to external AI services. The self-hosted deployment requires running the Refact model server on hardware capable of running the underlying language models.
Which programming languages does Refact support?
Refact supports over 25 programming languages including the major languages used in web development, systems programming, data science, and mobile development. The language support covers Python, JavaScript, TypeScript, Java, Go, Rust, C, C++, PHP, Ruby, and others. Code completion, refactoring, and agent capabilities are available across the supported language set, with the quality of project-aware context depending on the consistency and completeness of the project's codebase in that language.
How much does Refact cost?
Refact provides 2000 free coins per month on the free cloud-hosted plan for evaluating the platform and regular individual use. The Pro plan is priced at $10 per month and provides a higher monthly coin allocation for users with heavier daily development usage. Self-hosting the open source version on own infrastructure removes the coin usage limit entirely, with infrastructure and compute costs depending on the hosting environment.
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