Comparison
determined vs FastChat
Verdict
Pick determined if determined is an open-source machine learning platform that simplifies distributed training and hyperparameter tuning for PyTorch and TensorFlow applications; pick FastChat if fastChat is an open-source platform for training, serving, and evaluating large language models, including Vicuna, and supports Chatbot Arena, a platform for LLM evaluations with human feedback.
Markdown twin · determined alternatives · FastChat alternatives
GraphCanon updated Sep 30, 2026
10views this month
Trust & integrity
| Signal | determined | FastChat |
|---|---|---|
| Maintenance | Dormant (558d since push) As of Sep 30, 2026 · github_public_v1 | Slowing (140d since push) As of Sep 18, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 30, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 |
| OSV dependency advisories | Published findings As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Sep 18, 2026 · 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
- determined
- An open-source machine learning platform for distributed training and resource management.
- FastChat
- An open platform for training, serving, and evaluating large language models
Stars
- determined
- 3.2k
- FastChat
- 40k
Forks
- determined
- 375
- FastChat
- 4.8k
Open issues
- determined
- 108
- FastChat
- 1.0k
Language
- determined
- Go
- FastChat
- Python
Adopt for
- determined
- Determined is an open-source machine learning platform that simplifies distributed training and hyperparameter tuning for PyTorch and TensorFlow applications.
- FastChat
- FastChat is an open-source platform for training, serving, and evaluating large language models, including Vicuna, and supports Chatbot Arena, a platform for LLM evaluations with human feedback.
Persona
- determined
- -
- FastChat
- -
Runtime
- determined
- -
- FastChat
- -
License
- determined
- Apache-2.0
- FastChat
- Apache-2.0
Last pushed
- determined
- Mar 20, 2025
- FastChat
- May 1, 2026
Categories
- determined
- Evaluation & Observability, Model Training
- FastChat
- Evaluation & Observability, Inference & Serving, LLM Frameworks, Model Training
Trust and health
Maintenance
- determined
- Dormant (18%)
- FastChat
- Slowing (36%)
Days since push
- determined
- 558d
- FastChat
- 140d
Open issues (now)
- determined
- 108
- FastChat
- 1.0k
Stars delta
- determined
- +14 (30d)
- FastChat
- +19 (30d)
Open issues delta
- determined
- 0 (30d)
- FastChat
- +5 (30d)
OSV dependency advisories
- determined
- Published findings
- FastChat
- No lockfile (source not queried)
Full report
- determined
- Trust report
- FastChat
- Trust report
Shared compatibility
- Python · determined: Python runtime · FastChat: Python runtime
Choose determined if…
- determined is primarily Go; FastChat is Python.
- Pricing: The open-source version under Apache License is free to use. Additional enterprise features may incur costs, though specific pricing details are not provided here..
- Requirements: Installation involves using 'pip' for the CLI and subsequent cluster deployment steps via `det deploy`..
- Tags unique to determined: data-science, deep-learning, distributed training, hyperparameter-optimization.
- You require a streamlined solution for distributed model training, particularly if you are working with PyTorch or TensorFlow frameworks.
When NOT to use determined
- Seeking a platform that supports more machine learning frameworks beyond PyTorch and TensorFlow.
- Your current stack does not include any of the supported infrastructures like Kubernetes or cloud services where Determined can be deployed.
Choose FastChat if…
- FastChat is primarily Python; determined is Go.
- Tags unique to FastChat: chatbot arena, llm-evaluation, multi-model serving, openai-compatible apis.
- Also covers Inference & Serving, LLM Frameworks.
- When you need a platform that supports both training and evaluation of large language models, such as Vicuna, and you want to leverage human feedback for model evaluation.
When NOT to use FastChat
- If you are looking for a platform that focuses solely on model training without serving or evaluation capabilities, FastChat offers a comprehensive suite that might be more than you need.
- If your project does not require human feedback for model evaluation, FastChat's integration with Chatbot Arena might be an unnecessary feature.
- If you are working with proprietary or closed-source models, FastChat's open-source nature and reliance on open-source models like Vicuna might not align with your project requirements.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (determined-ai/determined) · observed Sep 30, 2026
- GitHub forks (determined-ai/determined) · observed Sep 30, 2026
- Last push (determined-ai/determined) · observed Mar 20, 2025
- License file (Apache-2.0) · observed Sep 30, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (lm-sys/FastChat) · observed Sep 20, 2026
- GitHub forks (lm-sys/FastChat) · observed Sep 20, 2026
- Last push (lm-sys/FastChat) · observed May 1, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
GitHub stars on cards: determined 3.2k · FastChat 40k (synced Sep 30, 2026).
Common questions
- What is the difference between determined and FastChat?
- determined: An open-source machine learning platform for distributed training and resource management.. 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 determined over FastChat?
- Choose determined over FastChat when determined is primarily Go; FastChat is Python; Pricing: The open-source version under Apache License is free to use. Additional enterprise features may incur costs, though specific pricing details are not provided here.; Requirements: Installation involves using 'pip' for the CLI and subsequent cluster deployment steps via
det deploy.; Tags unique to determined: data-science, deep-learning, distributed training, hyperparameter-optimization; You require a streamlined solution for distributed model training, particularly if you are working with PyTorch or TensorFlow frameworks. - When should I choose FastChat over determined?
- Choose FastChat over determined when FastChat is primarily Python; determined is Go; Tags unique to FastChat: chatbot arena, llm-evaluation, multi-model serving, openai-compatible apis; Also covers Inference & Serving, LLM Frameworks; When you need a platform that supports both training and evaluation of large language models, such as Vicuna, and you want to leverage human feedback for model evaluation.
- When should I avoid determined?
- Seeking a platform that supports more machine learning frameworks beyond PyTorch and TensorFlow. Your current stack does not include any of the supported infrastructures like Kubernetes or cloud services where Determined can be deployed.
- When should I avoid FastChat?
- If you are looking for a platform that focuses solely on model training without serving or evaluation capabilities, FastChat offers a comprehensive suite that might be more than you need. If your project does not require human feedback for model evaluation, FastChat's integration with Chatbot Arena might be an unnecessary feature. If you are working with proprietary or closed-source models, FastChat's open-source nature and reliance on open-source models like Vicuna might not align with your project requirements.
- Is determined or FastChat more popular on GitHub?
- FastChat has more GitHub stars (39,536 vs 3,241). Stars measure visibility, not whether either tool fits your constraints.
- Are determined and FastChat open source?
- Yes - both are open-source projects on GitHub (determined: Apache-2.0, FastChat: Apache-2.0).
- Where can I find alternatives to determined or FastChat?
- GraphCanon lists graph-backed alternatives at determined alternatives and FastChat alternatives (determined 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, determined or FastChat?
- determined: Dormant. 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 determined and FastChat?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: determined trust report; FastChat trust report.