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. ToolSpend records 0 monthly visits with 0% growth and Free Trial, Paid pricing.

See and control your AI spend across every provider from one dashboard
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | wandb.ai | toolspend.com |
| Pricing Model | Freemium, Contact for Pricing, Free | Free Trial, 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 | 4.4 |
| 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.

See and control your AI spend across every provider from one dashboard
Track token usage and spend across OpenAI, Google AI, Azure, Bedrock, and other services in one view, so you can see which provider is driving costs.
Project your bill based on current usage patterns so budgets stay under control and end-of-month surprises are avoided.
Get notified when usage jumps, catching retries, broken prompts, or runaway jobs before they compound into large bills.
Recommendations generated from usage and billing signals suggest cheaper model substitutions, idle GPU shutdowns, and retry or error fixes.
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

AI-powered financial reporting, dashboards and forecasting for accountants and finance teams
AI-powered financial reporting, dashboards and forecasting for accountants and finance 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-sourceOffers robust LLM evaluation and testing suites with integrated enterprise gateways, prioritizing prompt benchmarking.
Free / Open-sourceOffers robust LLM evaluation and testing suites with integrated enterprise gateways, prioritizing prompt benchmarking.
Autonomous cloud cost optimization that pays for itself
Autonomous cloud cost optimization that pays for itself

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.

Group buying that cuts your cloud and AI bills for free
Group buying that cuts your cloud and AI bills for free

AI workforce analytics that turn monitoring data into productivity and cost decisions.
AI workforce analytics that turn monitoring data into productivity and cost decisions.

AI value measurement platform connecting AI spend to real business outcomes
AI value measurement platform connecting AI spend to real business outcomes

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.