Tools
Arize AX vs Weights & Biases
Arize AX or Weights & Biases? Their plans monthly and yearly, the capabilities their makers state, security and latest updates, side by side — read from the makers' own pages.
In inglese
In short
- Both: Command line, Self-hosted, Traces and evaluates
- Only Arize AX states: Runs commands
- Only Weights & Biases states: API, Official SDKs, Runs models for you, Builds agents and workflows
Arize AX
Arize AX traces, evaluates, and improves AI agents and applications using observability, issue detection, experiments, and managed agents.
Plans
AX Free
Free
- 10 issues per month
- 25k spans per month
- 1 GB per month
- 15 days retention
- SaaS deployment
- Unlimited users and evals
AX Pro
- $50 per month
- 25 issues per month
- 50k spans per month
- 10 GB per month
- 30 days retention
- SaaS deployment
- Unlimited users and evals
AX Enterprise
Price on request
- Unlimited signal issues
- Custom span volume
- Custom ingestion volume
- Custom retention
- SaaS or self-hosted deployment
- Unlimited users and evals
Prices checked 2026-09-25 on the maker’s page.
Capabilities
- Runs commands — “Start in your terminal” source
- Command line — “Start in your terminal” source
- Self-hosted — “SaaS or Self-Hosted” source
- Traces and evaluates — “The agent observability and evaluation platform.” source
Security
- SOC 2 Type II — “Arize AI Announces SOC 2 Type II Certification” source
- SOC 2 — “Arize AI Announces SOC 2 Type II Certification” source
- ISO 27001 — “ISO/IEC 27001 Certified” source
- GDPR — “GDPR Compliant” source
- HIPAA — “HIPAA Compliant” source
- Data kept in the EU — “Arize AI: Support for EU Data Residency” source
Latest updates
- Get Alyx help tailored to your experience
Alyx adapts how it helps based on your experience level in each part of Arize AX.
- Pick up where you left off with Alyx long-term memory
Alyx remembers durable context across conversations, including your preferences, ongoing goals, project and asset learnings, team conventions, and important decisions.
- Add and annotate entire sessions and traces in annotation queues
You can send full multi-turn sessions and complete traces to an annotation queue and review them at session or trace granularity.
Weights & Biases
AI developer platform for tracking experiments, managing models and datasets, and evaluating and monitoring AI applications.
Plans
Free
Free
- AI application evaluations
- AI application tracing
- AI application scorers
- AI model experiment tracking
- AI assets registry & lineage tracking
- Community Support
Pro
- Starts at $60/month, billed monthly
- Unlimited teams for collaboration
- Team-based access controls
- Service Accounts
- Priority email & chat support
- CI/CD automations
- Slack and email alerts
Enterprise
Price on request
- Single tenant option with choice of region
- HIPAA compliant option
- Secure private connectivity
- Customer-managed encryption key
- Single Sign On
- Automated user provisioning
Personal
Free
- 1 user seat
- Experiment tracking
- Registry & lineage tracking
- Run a W&B server locally on any machine with Docker and Python installed
- For personal projects only. Corporate use is not allowed.
Advanced Enterprise
Price on request
- Flexible deployment options
- HIPAA compliant option
- Secure private connectivity
- Customer-managed encryption key
- Single Sign On
- Automated user provisioning
Free forever for academic research
Free
- All the product features included on Pro
- Unlimited tracked hours
- 200GB of cloud storage
- Up to 25GB/mo of Weave data ingestion
- Up to 100 seats
- Additional cloud storage can be purchased for $0.03 per GB, billed monthly
Prices checked 2026-09-25 on the maker’s page.
Capabilities
- Command line — “You can then use the command line to start the server.” source
- Self-hosted — “Self-hosting allows you to run Weights & Biases on your own infrastructure, giving you full control over your data and privacy.” source
- API — “Each inference API has different costs for input and output tokens.” source
- Official SDKs — “Core | Reports | Automations | SDK” source
- Runs models for you — “Inference Access and explore hosted AI models” source
- Builds agents and workflows — “W&B Weave: Build agentic AI applications” source
- Traces and evaluates — “Monitor and analyze the performance of your GenAI models during development and in production, capturing inputs, outputs, and metadata for each inference.” source
Security
- SOC 2 Type II — “We are certified under ISO/IEC 27001:2022, ISO/IEC 27017:2015, and ISO/IEC 27018:2019, and remain compliant with SOC 2 Type 2 and HIPAA standards.” source
- SOC 2 — “We are certified under ISO/IEC 27001:2022, ISO/IEC 27017:2015, and ISO/IEC 27018:2019, and remain compliant with SOC 2 Type 2 and HIPAA standards.” source
- ISO 27001 — “We are certified under ISO/IEC 27001:2022, ISO/IEC 27017:2015, and ISO/IEC 27018:2019, and remain compliant with SOC 2 Type 2 and HIPAA standards.” source
- HIPAA — “We are certified under ISO/IEC 27001:2022, ISO/IEC 27017:2015, and ISO/IEC 27018:2019, and remain compliant with SOC 2 Type 2 and HIPAA standards.” source