Comparison
R2R vs SAG
Verdict
Pick R2R if r2R is a state-of-the-art AI retrieval system that's production-ready and can easily be integrated through its RESTful API, employing Agentic Retrieval-Augmented Generation (RAG); pick SAG if sAG is a document retrieval project built with TypeScript to aid in efficient search and retrieval within knowledge bases.
Markdown twin · R2R alternatives · SAG alternatives
GraphCanon updated 1d
Trust & integrity
| Signal | R2R | SAG |
|---|---|---|
| Maintenance | Slowing (283d since push) As of 6d · github_public_v1 | Very active (0d since push) As of 1d · github_public_v1 |
| Provenance | Not a fork · Organization account As of 6d · github_public_v1 | Not a fork · Organization account As of 1d · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- R2R
- SoTA production-ready AI retrieval system with RESTful API
- SAG
- Document retrieval system built on SAG
Stars
- R2R
- 8.0k
- SAG
- 2.4k
Forks
- R2R
- 645
- SAG
- 148
Open issues
- R2R
- 122
- SAG
- 2
Language
- R2R
- Python
- SAG
- TypeScript
Adopt for
- R2R
- R2R is a state-of-the-art AI retrieval system that's production-ready and can easily be integrated through its RESTful API, employing Agentic Retrieval-Augmented Generation (RAG).
- SAG
- SAG is a document retrieval project built with TypeScript to aid in efficient search and retrieval within knowledge bases.
Persona
- R2R
- -
- SAG
- -
Runtime
- R2R
- -
- SAG
- -
License
- R2R
- MIT
- SAG
- MIT
Last pushed
- R2R
- Nov 7, 2025
- SAG
- Aug 22, 2026
Categories
- R2R
- Data & Retrieval, Inference & Serving
- SAG
- AI Agents, Data & Retrieval
Trust and health
Maintenance
- R2R
- Slowing (36%)
- SAG
- Very active (96%)
Days since push
- R2R
- 283d
- SAG
- 0d
Open issues (now)
- R2R
- 122
- SAG
- 2
Stars delta
- R2R
- +36 (30d)
- SAG
- +190 (30d)
Open issues delta
- R2R
- 0 (30d)
- SAG
- +2 (30d)
Full report
- R2R
- Trust report
- SAG
- Trust report
Shared compatibility
- Python · R2R: Python runtime · SAG: Python runtime
Choose R2R if…
- R2R is primarily Python; SAG is TypeScript.
- Tags unique to R2R: artificial-intelligence, large language models, python, question-answering.
- Also covers Inference & Serving.
- When you require top-tier accuracy in an AI-based retrieval system with the ease of integration provided by a RESTful API.
When NOT to use R2R
- If the application does not benefit from or requires less sophisticated methods of data retrieval that do not include RAG.
- When integrating with systems or in environments where network latency might impede performance due to its dependency on a RESTful API interface.
Choose SAG if…
- SAG is primarily TypeScript; R2R is Python.
- Tags unique to SAG: agent, ai, data-engineering, knowledge-graph.
- Also covers AI Agents.
- When you need graph and vector-based techniques for retrieving documents
When NOT to use SAG
- Avoid if the project requires features not supported by TypeScript, favoring alternative languages or environments instead
- Do not use SAG when the architecture of your system cannot benefit from graph and vector-based retrieval methods, as it may lead to underutilization of its capabilities
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (SciPhi-AI/R2R) · observed Aug 17, 2026
- GitHub forks (SciPhi-AI/R2R) · observed Aug 17, 2026
- Last push (SciPhi-AI/R2R) · observed Nov 7, 2025
- License file (MIT) · observed Aug 17, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (Zleap-AI/SAG) · observed Aug 23, 2026
- GitHub forks (Zleap-AI/SAG) · observed Aug 23, 2026
- Last push (Zleap-AI/SAG) · observed Aug 22, 2026
- License file (MIT) · observed Aug 23, 2026
- Decision facts (enrichment) · observed Jul 14, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: R2R 8.0k · SAG 2.4k (synced Aug 17, 2026).
Common questions
- What is the difference between R2R and SAG?
- R2R: SoTA production-ready AI retrieval system with RESTful API. SAG: Document retrieval system built on SAG. See the comparison table for live GitHub stats and shared categories.
- When should I choose R2R over SAG?
- Choose R2R over SAG when R2R is primarily Python; SAG is TypeScript; Tags unique to R2R: artificial-intelligence, large language models, python, question-answering; Also covers Inference & Serving; When you require top-tier accuracy in an AI-based retrieval system with the ease of integration provided by a RESTful API.
- When should I choose SAG over R2R?
- Choose SAG over R2R when SAG is primarily TypeScript; R2R is Python; Tags unique to SAG: agent, ai, data-engineering, knowledge-graph; Also covers AI Agents; When you need graph and vector-based techniques for retrieving documents.
- When should I avoid R2R?
- If the application does not benefit from or requires less sophisticated methods of data retrieval that do not include RAG. When integrating with systems or in environments where network latency might impede performance due to its dependency on a RESTful API interface.
- When should I avoid SAG?
- Avoid if the project requires features not supported by TypeScript, favoring alternative languages or environments instead Do not use SAG when the architecture of your system cannot benefit from graph and vector-based retrieval methods, as it may lead to underutilization of its capabilities
- Is R2R or SAG more popular on GitHub?
- R2R has more GitHub stars (7,967 vs 2,406). Stars measure visibility, not whether either tool fits your constraints.
- Are R2R and SAG open source?
- Yes - both are open-source projects on GitHub (R2R: MIT, SAG: MIT).
- Where can I find alternatives to R2R or SAG?
- GraphCanon lists graph-backed alternatives at R2R alternatives and SAG alternatives (R2R markdown twin, SAG markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, R2R or SAG?
- R2R: Slowing. SAG: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for R2R and SAG?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: R2R trust report; SAG trust report.