Compare HoneyHive and Weights & Biases side by side. Both are tools in the Observability, Prompts & Evals category.
Updated March 9, 2026
Choose HoneyHive if comprehensive observability with OpenTelemetry-native distributed tracing across 100+ LLMs and frameworks.
Choose Weights & Biases if free tier for personal projects and academic research provides excellent value.
Want to compare HoneyHive and Weights & Biases on your own traffic?
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 250+ models through one gateway. Free tier covers 10K traces per month. Setup in 5 minutes, no credit card.
| Category | Observability, Prompts & Evals | Observability, Prompts & Evals |
| Pricing | paid | Freemium |
| Best For | Enterprise teams managing prompts and running evals | ML engineers and researchers who need comprehensive experiment tracking |
| Website | honeyhive.ai | wandb.ai |
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HoneyHive is an enterprise-grade AI observability and evaluation platform that helps teams monitor, debug, and optimize AI agents and applications at scale. The platform provides OpenTelemetry-native distributed tracing across 100+ LLMs and agent frameworks, enabling visibility into complex multi-agent systems through session replay, online evaluation for detecting failures in live systems, and comprehensive artifact management. HoneyHive offers 25+ pre-built evaluators for quality and safety assessment, offline experiment capabilities with regression detection, and CI/CD integration for automated testing. The platform is SOC 2 Type II certified, GDPR and HIPAA compliant, with deployment options including multi-tenant SaaS, dedicated cloud, or self-hosted air-gapped environments.
Weights and Biases (W and B) is a machine learning operations platform founded in 2017 by Chris Van Pelt, Lukas Biewald, and Shawn Lewis in San Francisco, California. The platform offers performance visualization tools for machine learning, helping companies track models, visualize performance, and automate training and model improvement workflows. W and B provides comprehensive experiment tracking, model versioning, and collaborative tools for ML teams. In March 2025, Weights and Biases was acquired by CoreWeave, strengthening its position in the AI infrastructure ecosystem. The company raised a total of USD 250M from investors including CoreWeave, Coatue, Bloomberg Beta, and Insight Partners. W and B offers a free tier for personal projects and provides academic institutions with free Pro licenses for non-profit research, including unlimited tracked hours, 200GB cloud storage, up to 25GB/month of Weave data ingestion, and up to 100 seats. Paid plans start at USD 60/month with additional cloud storage available at USD 0.03 per GB.
Tools for monitoring LLM applications in production, managing and versioning prompts, and evaluating model outputs. Includes tracing, logging, cost tracking, prompt engineering platforms, automated evaluation frameworks, and human annotation workflows.
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