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lm-sys/FastChat

FastChat

An open platform for training, serving, and evaluating large language models. Release repo for Vicuna and Chatbot Arena.

View on GitHub↗Upstream lm-sys/FastChat↗

Builder

lm-sys

lm-sys

lm-sys • individual

Stars

39,485

Using upstream star count

Forks

4,785

Using upstream fork count

Open Issues

0

Activity Score

0/100

0 commits in 30d

Created

Mar 19, 2023

Project creation date

README Summary

FastChat | [**Demo**](https://lmarena.ai/) | [**Discord**](https://discord.gg/6GXcFg3TH8) | [**X**](https://x.com/lmsysorg) |

Community Evaluation

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AI Dev Skills

Unmapped

Chat Model OptimizationConversational AIDistributed TrainingInference OptimizationInstruction FollowingLarge Language Model TrainingLLM Fine-tuningModel Evaluation and BenchmarkingModel QuantizationModel Serving and DeploymentMulti-turn Dialogue Systems

Tags

Chat Model OptimizationConversational AIDistributed TrainingInference OptimizationInstruction FollowingLarge Language Model TrainingLLM Fine-tuningModel Evaluation and BenchmarkingModel QuantizationModel Serving and DeploymentMulti-turn Dialogue SystemsAPIAnthropic / ClaudeBenchmarkingCLI ToolEvalsExLlamaFSDPForkedGPTGPT4AllGPU / CUDAGoogle AIGoogle CloudHuggingFaceJupyterLLM ServingLangChainLarge Language ModelsLoRA / PEFTMLOpsMLflowMistralOpenAIPlanning / CoTPyTorchPythonQuantizationReal-Time / StreamingResearch / PapersRustTransformersWeights & BiasesvLLM

Taxonomy

AI Trends

Large Language ModelsConversational AIOpen Source AIModel Evaluation and SafetyInstruction-Following Models

category

Foundation ModelsAI AgentsModel TrainingEvals & BenchmarkingObservability & MonitoringInference & ServingMLOps & InfrastructureDev Tools & AutomationCloud & PlatformsLearning ResourcesData Science & Analytics

Deployment Context

Cloud APISelf-hostedOn-premise

Modalities

TextMultimodal

Skill Areas

Large Language Model TrainingConversational AIModel Serving and DeploymentLLM Fine-tuningModel Evaluation and BenchmarkingDistributed TrainingInstruction FollowingChat Model OptimizationMulti-turn Dialogue SystemsModel QuantizationInference Optimization

tag

APIAnthropic / ClaudeBenchmarkingCLI ToolEvalsExLlamaFSDPForkedGPTGPT4AllGPU / CUDAGoogle AIGoogle CloudHuggingFaceJupyterLLM ServingLangChainLarge Language ModelsLoRA / PEFTMLOpsMLflowMistralOpenAIPlanning / CoTPyTorchPythonQuantizationReal-Time / StreamingResearch / PapersRustTransformersWeights & BiasesvLLM

Use Cases

Conversational AI ChatbotsLLM Model ServingChatbot Performance EvaluationCustom Chat Model TrainingMulti-turn Dialogue SystemsLLM BenchmarkingResearch Model Comparison

Recent Activity

Updated 1 years ago

7 Days

0

30 Days

0

90 Days

0

Quality

production
Quality
high
Maturity
production

Categories

Evals & BenchmarkingPrimaryObservability & MonitoringInference & ServingMLOps & InfrastructureDev Tools & AutomationCloud & PlatformsLearning ResourcesData Science & AnalyticsFoundation ModelsAI AgentsModel TrainingML Platform & InfrastructureSafety & AlignmentSearch & KnowledgeOther AI / ML

PM Skills

Cost & EfficiencyScale & ReliabilityData & EvaluationDeveloper PlatformAI-Native Architecture

Languages

Python100.0%

Timeline

Project created
Mar 19, 2023
Forked
Mar 22, 2026
Your last push
1 years ago
Upstream last push
1 months ago
Tracked since
Jun 2, 2025

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