Free / Open-sourceRun and build with open AI models locally or in the cloud
Free / Open-sourceRun and build with open AI models locally or in the cloud
Weights & Biases (CoreWeave Forge) records 315,624 monthly visits with -80.2% month-over-month growth and Freemium, Contact for Pricing, Free pricing. SaaSpec records 0 monthly visits with 0% growth and Paid pricing.
Meter pay-as-you-go LLM API usage and turn token costs into Stripe invoices
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | wandb.ai | saaspec.com |
| Pricing Model | Freemium, Contact for Pricing, Free | Paid |
| Monthly Visits | 315.62K (315,624) | 0 (0) |
| MoM Traffic Delta | -1.28M (-80.2%) | 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (32.2%) | 🌐 Global (—) |
| Direct Visits / mo | 230.88K | 0 |
| User Rating | 4.7 | 4.1 |
| Supported Platforms | Website | Website |

Track, evaluate, and ship AI models and agents in one connected environment.
Log metrics, losses, and media from training runs and compare them side by side in interactive charts to spot what actually improves your model.
Run automated hyperparameter sweeps and visualize parameter importance so you can converge on better configurations faster.
Version datasets and model artifacts, track lineage, and promote models through a registry from training to production.
Build, log, and evaluate LLM prompts and applications, with tracing and evaluation tools grouped under an LLMOps workflow.
Meter pay-as-you-go LLM API usage and turn token costs into Stripe invoices
Track how many tokens each individual end user of your pay-as-you-go product consumes through LLM API calls, so cost can be attributed to the right account.
A hosted dashboard aggregates the metered data so you can see which users are driving consumption before you bill them.
Export a month's worth of user data to CSV, giving you a portable record you can inspect, archive, or feed into other tooling.
Turn exported monthly user data into Stripe invoices for customers on pay-as-you-go terms, closing the loop between usage and payment.
Free / Open-sourceRun and build with open AI models locally or in the cloud
Free / Open-sourceRun and build with open AI models locally or in the cloud
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams

Free / Open-sourceProvides deep production LLM observability and tracing, focusing heavily on debugging production failures and drift.
Free / Open-sourceProvides deep production LLM observability and tracing, focusing heavily on debugging production failures and drift.

SpecialistFeatures simulation and guardrail tools for testing LLM safety and robustness before production deployment.
SpecialistFeatures simulation and guardrail tools for testing LLM safety and robustness before production deployment.

Free / Open-sourceEvaluate, monitor, and govern your AI applications in production
Free / Open-sourceEvaluate, monitor, and govern your AI applications in production

Focuses specifically on prompt versioning, collaborative CMS management, and agent tracing rather than general MLOps.
Focuses specifically on prompt versioning, collaborative CMS management, and agent tracing rather than general MLOps.

Specializes in automated LLM unit testing and security red-teaming, though less focused on traditional MLOps experiment tracking.
Specializes in automated LLM unit testing and security red-teaming, though less focused on traditional MLOps experiment tracking.

Free / Open-sourceProvides an open-source workspace specifically for prompt experimentation, LLM evaluation, and agent deployment pipelines.
Free / Open-sourceProvides an open-source workspace specifically for prompt experimentation, LLM evaluation, and agent deployment pipelines.

Free / Open-sourceFind and fix problems in your AI agents before users do
Free / Open-sourceFind and fix problems in your AI agents before users do

SpecialistEnterprise platform for building, evaluating and shipping AI agents

Free / Open-sourceOne real-time ledger for metering, credits, pricing and entitlements
Free / Open-sourceOne real-time ledger for metering, credits, pricing and entitlements

Free / Open-sourceMonetization and billing infrastructure for the agent economy
Free / Open-sourceMonetization and billing infrastructure for the agent economy