Weights and Biases
Machine learning platform for experiment tracking and model management
Purpose-built platform for tracking experiments, managing datasets, and versioning models. Provides collaboration tools and integration with major frameworks including PyTorch and TensorFlow.
| Pricing from | Free tier available; Teams plan from ~£23/month per member |
| Best for | Research teams, ML engineers focused on experiment tracking, and model governance |
| Website | wandb.ai |
Company facts
| Social profiles | LinkedIn, X, Facebook, YouTube, GitHub, Crunchbase |
Facilities and features
- Published pricing
- Self-serve sign-up
- SOC 2
- GDPR
What stands out
The AI tool is certified under ISO/IEC 27001:2022 and compliant with SOC 2 standards.
“Weights & Biases AI development platform is certified under ISO/IEC 27001:2022, ISO/IEC 27017:2015,”Weights and Biases, own website
The AI tool allows users to get started with just one line of code.
“Get started with one line of code”Weights and Biases, own website
Strengths and trade-offs
- Exceptional experiment tracking and hyperparameter optimisation visualisation
- Strong focus on model governance and team collaboration features
- Can be overkill for simple training tasks
- Pricing escalates quickly with team size
Appears in
Best LLM observability tools
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Arize AI88.0RANKINGfull ranking →AI TOOLSTop 10 AI Model Training Platforms
1
Google Cloud Vertex AI95.02
AWS SageMaker92.73
Microsoft Azure Machine Learning90.3RANKINGfull ranking →How Weights and Biases ranks
#5 in Best LLM observability tools
How the score is made up: Evidence on its own site 20; How complete its published information is 16; Fit to this ranking's criteria 40; Buying information on its own site 12.
“LLMOps and prompt engineering Monitoring Observability for production ML Weave Interactive ML app builder Solutions Close Solutions Open Solutions”Weights and Biases, own website
Alternatives to Weights and Biases
| LangFuse Open source agent evals and observability platform | #1 in Best LLM observability tools | 92.0 |
| AgentOps Reliable AI agents: Trace, debug, & deploy | #2 in Best LLM observability tools | 88.0 |
| Arize AI ML observability and fairness monitoring platform | #3 in Best LLM observability tools | 88.0 |
 Fiddler AIModel monitoring and explainability platform for compliance | #4 in Best LLM observability tools | 88.0 |
 HoneyHiveAgent observability & evaluation platform | #6 in Best LLM observability tools | 84.0 |
 MLflow AI PlatformDeliver high-quality AI, fast | #7 in Best LLM observability tools | 82.0 |
Questions about Weights and Biases
How much does Weights and Biases cost?
Lister lists Weights and Biases's pricing as: Free tier available; Teams plan from ~£23/month per member.
Is Weights and Biases free?
Yes. Its pricing reads: Free tier available; Teams plan from ~£23/month per member.
Who is Weights and Biases best for?
Weights and Biases is best for research teams, ML engineers focused on experiment tracking, and model governance.
Where does Weights and Biases rank?
Weights and Biases is ranked #5 in Best LLM observability tools (Lister Score 88.0) and #5 in Top 10 AI Model Training Platforms (Lister Score 85.7).
What are the best alternatives to Weights and Biases?
The closest alternatives on Lister are LangFuse (#1 in Best LLM observability tools), AgentOps (#2 in Best LLM observability tools) and Arize AI (#3 in Best LLM observability tools).
Is this your company?
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