Comparison
keras vs FastChat
Verdict
Pick keras when tags unique to keras: data-science, neural-networks, deep-learning, machine-learning; pick FastChat when tags unique to FastChat: evaluation system, large-language-models, chatbots, distributed serving.
Markdown twin · keras alternatives · FastChat alternatives
GraphCanon updated today
Trust & integrity
| Signal | keras | FastChat |
|---|---|---|
| Maintenance | Very active (4d since push) As of today · github_public_v1 | Steady (71d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | No criticals As of today · osv@v1 | No lockfile As of today · none |
Tagline
- keras
- Deep Learning for humans
- FastChat
- An open platform for training, serving, and evaluating large language models
Stars
- keras
- 64k
- FastChat
- 39k
Forks
- keras
- 20k
- FastChat
- 4.8k
Open issues
- keras
- 228
- FastChat
- 1.0k
Language
- keras
- Python
- FastChat
- Python
Adopt for
- keras
- -
- 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
- keras
- -
- FastChat
- -
Runtime
- keras
- -
- FastChat
- -
License
- keras
- Apache-2.0
- FastChat
- Apache-2.0
Last pushed
- keras
- Jul 7, 2026
- FastChat
- May 1, 2026
Categories
- keras
- Model Training
- FastChat
- LLM Frameworks, Model Training, Inference & Serving, Evaluation & Observability
Trust and health
Maintenance
- keras
- Very active (96%)
- FastChat
- Steady (60%)
Days since push
- keras
- 4d
- FastChat
- 71d
Open issues (now)
- keras
- 228
- FastChat
- 1.0k
Security scan
- keras
- No criticals
- FastChat
- No lockfile
Full report
- keras
- Trust report
- FastChat
- Trust report
Shared compatibility
- Python · keras: Python runtime · FastChat: Python runtime
Choose keras if…
- Tags unique to keras: data-science, neural-networks, deep-learning, machine-learning.
- More GitHub stars (64k vs 39k) - visibility, not fit.
When NOT to use keras
- Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge.
Choose FastChat if…
- Tags unique to FastChat: evaluation system, large-language-models, chatbots, distributed serving.
- Also covers LLM Frameworks, Inference & Serving, Evaluation & Observability.
- - 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 (keras-team/keras) · observed Jul 11, 2026
- GitHub forks (keras-team/keras) · observed Jul 11, 2026
- Last push (keras-team/keras) · observed Jul 7, 2026
- License file (Apache-2.0) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (lm-sys/FastChat) · observed Jul 11, 2026
- GitHub forks (lm-sys/FastChat) · observed Jul 11, 2026
- Last push (lm-sys/FastChat) · observed May 1, 2026
- License file (Apache-2.0) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: keras 64k · FastChat 39k (synced Jul 11, 2026).
Common questions
- What is the difference between keras and FastChat?
- keras: Deep Learning for humans. 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 keras over FastChat?
- Choose keras over FastChat when Tags unique to keras: data-science, neural-networks, deep-learning, machine-learning; More GitHub stars (64k vs 39k) - visibility, not fit.
- When should I choose FastChat over keras?
- Choose FastChat over keras when Tags unique to FastChat: evaluation system, large-language-models, chatbots, distributed serving; Also covers LLM Frameworks, Inference & Serving, Evaluation & Observability; - You are looking to train and evaluate state-of-the-art models such as Vicuna or MT-Bench.
- When should I avoid keras?
- Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge.
- 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 keras or FastChat more popular on GitHub?
- keras has more GitHub stars (64,191 vs 39,490). Stars measure visibility, not whether either tool fits your constraints.
- Are keras and FastChat open source?
- Yes - both are open-source projects on GitHub (keras: Apache-2.0, FastChat: Apache-2.0).
- Where can I find alternatives to keras or FastChat?
- GraphCanon lists graph-backed alternatives at keras alternatives and FastChat alternatives (keras 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, keras or FastChat?
- keras: Very active. FastChat: Steady. 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 keras and FastChat?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: keras trust report; FastChat trust report.