Comparison
LibreChat vs FastChat
Verdict
Pick LibreChat if libreChat provides a versatile AI chat platform for self-hosting with extensive features like model switching, code interpretation, and secure multi-user authentication; pick FastChat if fastChat is a comprehensive open platform for managing large language models (LLMs) that includes capabilities for training, serving, evaluating, and comparing chatbot models via web UIs and RESTful APIs. It powers ChatB.
Markdown twin · LibreChat alternatives · FastChat alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | LibreChat | FastChat |
|---|---|---|
| Maintenance | Very active (0d since push) As of today · github_public_v1 | Slowing (98d since push) As of 2w · github_public_v1 |
| Provenance | Not a fork · Personal account As of today · github_public_v1 | Not a fork · Organization account As of 2w · 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
- LibreChat
- Enhanced ChatGPT Clone with extensive features and integrations for self-hosting
- FastChat
- An open platform for training, serving, and evaluating large language models
Stars
- LibreChat
- 42k
- FastChat
- 40k
Forks
- LibreChat
- 8.8k
- FastChat
- 4.8k
Open issues
- LibreChat
- 725
- FastChat
- 1.0k
Language
- LibreChat
- TypeScript
- FastChat
- Python
Adopt for
- LibreChat
- LibreChat provides a versatile AI chat platform for self-hosting with extensive features like model switching, code interpretation, and secure multi-user authentication.
- FastChat
- FastChat is a comprehensive open platform for managing large language models (LLMs) that includes capabilities for training, serving, evaluating, and comparing chatbot models via web UIs and RESTful APIs. It powers ChatB
Persona
- LibreChat
- -
- FastChat
- -
Runtime
- LibreChat
- -
- FastChat
- -
License
- LibreChat
- MIT
- FastChat
- Apache-2.0
Last pushed
- LibreChat
- Aug 25, 2026
- FastChat
- May 1, 2026
Categories
- LibreChat
- AI Agents, Data & Retrieval, Developer Tools, Evaluation & Observability, Inference & Serving, Model Training
- FastChat
- Evaluation & Observability, Inference & Serving, LLM Frameworks, Model Training
Trust and health
Maintenance
- LibreChat
- Very active (96%)
- FastChat
- Slowing (36%)
Days since push
- LibreChat
- 0d
- FastChat
- 98d
Open issues (now)
- LibreChat
- 725
- FastChat
- 1.0k
Stars delta
- LibreChat
- +1.2k (30d)
- FastChat
- Unknown
Open issues delta
- LibreChat
- +100 (30d)
- FastChat
- Unknown
Owner type
- LibreChat
- User
- FastChat
- Organization
Full report
- LibreChat
- Trust report
- FastChat
- Trust report
Choose LibreChat if…
- LibreChat is primarily TypeScript; FastChat is Python.
- License: LibreChat is MIT, FastChat is Apache-2.0.
- Tags unique to LibreChat: ai, anthropic, artifacts, aws.
- Also covers AI Agents, Data & Retrieval, Developer Tools.
- LibreChat ships Docker support for self-hosted deployment.
- Need to support multiple AI models and protocols in one tool
When NOT to use LibreChat
- Looking for a simpler solution with fewer configurability options
- Do not require extensive third-party service integrations or complex customizations
Choose FastChat if…
- FastChat is primarily Python; LibreChat is TypeScript.
- License: FastChat is Apache-2.0, LibreChat is MIT.
- Tags unique to FastChat: chatbots, distributed-serving, evaluation system, large language models.
- Also covers LLM Frameworks.
- - You are looking to train and evaluate state-of-the-art models such as Vicuna or MT-Bench.
When NOT to use FastChat
- - You require a proprietary or closed-source framework; FastChat is open-source under Apache-2.0 license and its use might be unsuitable for environments requiring proprietary solutions.
- - Your chatbot evaluation needs do not align with the types of data used in FastChat's datasets (e.g., human votes, MT-Bench evaluations).
- - You prefer a more user-friendly setup without the need to clone a repository and manually install dependencies; FastChat requires installation from source with additional steps for Rust and CMake on
- + Mac.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (danny-avila/LibreChat) · observed Aug 25, 2026
- GitHub forks (danny-avila/LibreChat) · observed Aug 25, 2026
- Last push (danny-avila/LibreChat) · observed Aug 25, 2026
- License file (MIT) · observed Aug 25, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (lm-sys/FastChat) · observed Aug 7, 2026
- GitHub forks (lm-sys/FastChat) · observed Aug 7, 2026
- Last push (lm-sys/FastChat) · observed May 1, 2026
- License file (Apache-2.0) · observed Aug 7, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: LibreChat 42k · FastChat 40k (synced Aug 25, 2026).
Common questions
- What is the difference between LibreChat and FastChat?
- LibreChat: Enhanced ChatGPT Clone with extensive features and integrations for self-hosting. FastChat: An open platform for training, serving, and evaluating large language models. See the comparison table for live GitHub stats and shared categories.
- When should I choose LibreChat over FastChat?
- Choose LibreChat over FastChat when LibreChat is primarily TypeScript; FastChat is Python; License: LibreChat is MIT, FastChat is Apache-2.0; Tags unique to LibreChat: ai, anthropic, artifacts, aws; Also covers AI Agents, Data & Retrieval, Developer Tools; LibreChat ships Docker support for self-hosted deployment; Need to support multiple AI models and protocols in one tool.
- When should I choose FastChat over LibreChat?
- Choose FastChat over LibreChat when FastChat is primarily Python; LibreChat is TypeScript; License: FastChat is Apache-2.0, LibreChat is MIT; Tags unique to FastChat: chatbots, distributed-serving, evaluation system, large language models; Also covers LLM Frameworks; - You are looking to train and evaluate state-of-the-art models such as Vicuna or MT-Bench.
- When should I avoid LibreChat?
- Looking for a simpler solution with fewer configurability options Do not require extensive third-party service integrations or complex customizations
- When should I avoid FastChat?
- - You require a proprietary or closed-source framework; FastChat is open-source under Apache-2.0 license and its use might be unsuitable for environments requiring proprietary solutions. - Your chatbot evaluation needs do not align with the types of data used in FastChat's datasets (e.g., human votes, MT-Bench evaluations). - You prefer a more user-friendly setup without the need to clone a repository and manually install dependencies; FastChat requires installation from source with additional steps for Rust and CMake on + Mac.
- Is LibreChat or FastChat more popular on GitHub?
- LibreChat has more GitHub stars (42,443 vs 39,517). Stars measure visibility, not whether either tool fits your constraints.
- Are LibreChat and FastChat open source?
- Yes - both are open-source projects on GitHub (LibreChat: MIT, FastChat: Apache-2.0).
- Where can I find alternatives to LibreChat or FastChat?
- GraphCanon lists graph-backed alternatives at LibreChat alternatives and FastChat alternatives (LibreChat markdown twin, FastChat 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, LibreChat or FastChat?
- LibreChat: Very active. FastChat: Slowing. 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 LibreChat and FastChat?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: LibreChat trust report; FastChat trust report.