Comparison
cceval vs FastChat
Verdict
Pick cceval when tags unique to cceval: python; pick FastChat when tags unique to FastChat: chatbots, distributed serving, evaluation system, large-language-models.
Markdown twin · cceval alternatives · FastChat alternatives
GraphCanon updated today
Trust & integrity
| Signal | cceval | FastChat |
|---|---|---|
| Maintenance | Slowing (330d 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) | 5 critical, 7 high, 8 medium, 21 low (5 critical, 7 high, 8 medium, 21 low) As of today · osv@v1 | No lockfile As of today · none |
Tagline
- cceval
- CrossCodeEval: A Diverse and Multilingual Benchmark for Cross-File Code Completion (NeurIPS 2023)
- FastChat
- An open platform for training, serving, and evaluating large language models
Stars
- cceval
- 181
- FastChat
- 39k
Forks
- cceval
- 25
- FastChat
- 4.8k
Open issues
- cceval
- 5
- FastChat
- 1.0k
Language
- cceval
- Python
- FastChat
- Python
Adopt for
- cceval
- -
- 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
- cceval
- -
- FastChat
- -
Runtime
- cceval
- -
- FastChat
- -
License
- cceval
- Apache-2.0
- FastChat
- Apache-2.0
Last pushed
- cceval
- Aug 15, 2025
- FastChat
- May 1, 2026
Categories
- cceval
- Data & Retrieval, Evaluation & Observability
- FastChat
- Evaluation & Observability, Inference & Serving, LLM Frameworks, Model Training
Trust and health
Maintenance
- cceval
- Slowing (36%)
- FastChat
- Steady (60%)
Days since push
- cceval
- 330d
- FastChat
- 71d
Open issues (now)
- cceval
- 5
- FastChat
- 1.0k
Security scan
- cceval
- 5 critical, 7 high, 8 medium, 21 low (5 critical, 7 high, 8 medium, 21 low)
- FastChat
- No lockfile
Full report
- cceval
- Trust report
- FastChat
- Trust report
Shared compatibility
- Python · cceval: Python runtime · FastChat: Python runtime
Choose cceval if…
- Tags unique to cceval: python.
- Also covers Data & Retrieval.
- Leaner open-issue backlog (5).
When NOT to use cceval
- Last GitHub push was 330 days ago (slowing maintenance, Aug 15, 2025). Validate activity before betting a new project on cceval.
- Data & Retrieval: Skip a heavy ingestion framework when your corpus is small and static; a script plus the embedding API is enough.
- Evaluation & Observability: Defer heavyweight eval infra only until you have real traffic - never skip it once users depend on answers.
Choose FastChat if…
- Tags unique to FastChat: chatbots, distributed serving, evaluation system, large-language-models.
- Also covers Inference & Serving, LLM Frameworks, Model Training.
- - 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 (amazon-science/cceval) · observed Jul 11, 2026
- GitHub forks (amazon-science/cceval) · observed Jul 11, 2026
- Last push (amazon-science/cceval) · observed Aug 15, 2025
- 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: cceval 181 · FastChat 39k (synced Jul 11, 2026).
Common questions
- What is the difference between cceval and FastChat?
- cceval: CrossCodeEval: A Diverse and Multilingual Benchmark for Cross-File Code Completion (NeurIPS 2023). 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 cceval over FastChat?
- Choose cceval over FastChat when Tags unique to cceval: python; Also covers Data & Retrieval; Leaner open-issue backlog (5).
- When should I choose FastChat over cceval?
- Choose FastChat over cceval when Tags unique to FastChat: chatbots, distributed serving, evaluation system, large-language-models; Also covers Inference & Serving, LLM Frameworks, Model Training; - You are looking to train and evaluate state-of-the-art models such as Vicuna or MT-Bench.
- When should I avoid cceval?
- Last GitHub push was 330 days ago (slowing maintenance, Aug 15, 2025). Validate activity before betting a new project on cceval. Data & Retrieval: Skip a heavy ingestion framework when your corpus is small and static; a script plus the embedding API is enough. Evaluation & Observability: Defer heavyweight eval infra only until you have real traffic - never skip it once users depend on answers.
- 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 cceval or FastChat more popular on GitHub?
- FastChat has more GitHub stars (39,490 vs 181). Stars measure visibility, not whether either tool fits your constraints.
- Are cceval and FastChat open source?
- Yes - both are open-source projects on GitHub (cceval: Apache-2.0, FastChat: Apache-2.0).
- Where can I find alternatives to cceval or FastChat?
- GraphCanon lists graph-backed alternatives at cceval alternatives and FastChat alternatives (cceval 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, cceval or FastChat?
- cceval: Slowing. 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 cceval and FastChat?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: cceval trust report; FastChat trust report.