Comparison
FastChat vs prompt-patterns
Verdict
Pick FastChat when tags unique to FastChat: chatbot arena, llm-evaluation, multi-model serving, openai-compatible apis; pick prompt-patterns when requirements: The repository does not specify system requirements.; Details about compatible AI models, frameworks, and the expected environment setup remain unspecified in the provided information..
Markdown twin · FastChat alternatives · prompt-patterns alternatives
GraphCanon updated Sep 20, 2026
8views this month
Trust & integrity
| Signal | FastChat | prompt-patterns |
|---|---|---|
| Maintenance | Slowing (140d since push) As of Sep 18, 2026 · github_public_v1 | Dormant (1278d since push) As of Sep 20, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 18, 2026 · github_public_v1 | Not a fork · Personal account As of Sep 20, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Sep 18, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 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
- FastChat
- An open platform for training, serving, and evaluating large language models
- prompt-patterns
- Prompt 编写模式:如何将思维框架赋予机器,以设计模式的形式来思考 prompt
Stars
- FastChat
- 40k
- prompt-patterns
- 3.1k
Forks
- FastChat
- 4.8k
- prompt-patterns
- 198
Open issues
- FastChat
- 1.0k
- prompt-patterns
- 0
Language
- FastChat
- Python
- prompt-patterns
- -
Adopt for
- 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.
- prompt-patterns
- -
Persona
- FastChat
- -
- prompt-patterns
- -
Runtime
- FastChat
- -
- prompt-patterns
- -
License
- FastChat
- Apache-2.0
- prompt-patterns
- -
Last pushed
- FastChat
- May 1, 2026
- prompt-patterns
- Mar 22, 2023
Categories
- FastChat
- Evaluation & Observability, Inference & Serving, LLM Frameworks, Model Training
- prompt-patterns
- Evaluation & Observability, LLM Frameworks
Trust and health
Maintenance
- FastChat
- Slowing (36%)
- prompt-patterns
- Dormant (18%)
Days since push
- FastChat
- 140d
- prompt-patterns
- 1278d
Open issues (now)
- FastChat
- 1.0k
- prompt-patterns
- 0
Stars delta
- FastChat
- +19 (30d)
- prompt-patterns
- -4 (30d)
Open issues delta
- FastChat
- +5 (30d)
- prompt-patterns
- 0 (30d)
Owner type
- FastChat
- Organization
- prompt-patterns
- User
Full report
- FastChat
- Trust report
- prompt-patterns
- Trust report
Shared compatibility
- ChatGPT · FastChat: Works with ChatGPT · prompt-patterns: Works with ChatGPT
Choose FastChat if…
- Tags unique to FastChat: chatbot arena, llm-evaluation, multi-model serving, openai-compatible apis.
- Also covers Inference & Serving, Model Training.
- 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.
Choose prompt-patterns if…
- Requirements: The repository does not specify system requirements.; Details about compatible AI models, frameworks, and the expected environment setup remain unspecified in the provided information..
- Tags unique to prompt-patterns: chatgpt, github-copilot, prompt-engineering, stable-diffusion.
- Use prompt-patterns for designing structured prompts to guide AI thinking in specific frameworks when working on projects that require maintaining a clear cognitive structure.
When NOT to use prompt-patterns
- Avoid prompt-patterns for real-time applications or situations requiring dynamic, contextually adaptive prompts, as it might lack flexibility compared to more generalized frameworks.
- Do not use if your project's requirements revolve around innovative and unstructured AI interactions; this tool is best for structured environments.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- 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 (phodal/prompt-patterns) · observed Sep 20, 2026
- GitHub forks (phodal/prompt-patterns) · observed Sep 20, 2026
- Last push (phodal/prompt-patterns) · observed Mar 22, 2023
- License file (unknown) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: FastChat 40k · prompt-patterns 3.1k (synced Sep 20, 2026).
Common questions
- What is the difference between FastChat and prompt-patterns?
- FastChat: An open platform for training, serving, and evaluating large language models. prompt-patterns: Prompt 编写模式:如何将思维框架赋予机器,以设计模式的形式来思考 prompt. See the comparison table for live GitHub stats and shared categories.
- When should I choose FastChat over prompt-patterns?
- Choose FastChat over prompt-patterns when Tags unique to FastChat: chatbot arena, llm-evaluation, multi-model serving, openai-compatible apis; Also covers Inference & Serving, Model Training; 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 choose prompt-patterns over FastChat?
- Choose prompt-patterns over FastChat when Requirements: The repository does not specify system requirements.; Details about compatible AI models, frameworks, and the expected environment setup remain unspecified in the provided information.; Tags unique to prompt-patterns: chatgpt, github-copilot, prompt-engineering, stable-diffusion; Use prompt-patterns for designing structured prompts to guide AI thinking in specific frameworks when working on projects that require maintaining a clear cognitive structure.
- 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.
- When should I avoid prompt-patterns?
- Avoid prompt-patterns for real-time applications or situations requiring dynamic, contextually adaptive prompts, as it might lack flexibility compared to more generalized frameworks. Do not use if your project's requirements revolve around innovative and unstructured AI interactions; this tool is best for structured environments.
- Is FastChat or prompt-patterns more popular on GitHub?
- FastChat has more GitHub stars (39,536 vs 3,091). Stars measure visibility, not whether either tool fits your constraints.
- Are FastChat and prompt-patterns open source?
- Yes - both are open-source projects on GitHub.
- Where can I find alternatives to FastChat or prompt-patterns?
- GraphCanon lists graph-backed alternatives at FastChat alternatives and prompt-patterns alternatives (FastChat markdown twin, prompt-patterns 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, FastChat or prompt-patterns?
- FastChat: Slowing. prompt-patterns: Dormant. 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 FastChat and prompt-patterns?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: FastChat trust report; prompt-patterns trust report.