Alternatives to Weights & Biases

Mechanistic interpretability platform to understand, debug, and design AI models

Automated deep learning model optimization for NVIDIA GPUs.

Enterprise AI control plane uniting agentic observability, guardrails, and governance

Open-source LLM & VLM evaluation platform for standardized benchmarking

Open-source multimodal AI lakehouse format with hybrid search and 100x faster random access.

Free, open-source visualizer for neural network and ML models.

AI observability and reliability for cyber-physical systems with continual learning

Real-time experiment tracking for frontier AI model training, now owned by OpenAI

Open-source LLM agent observability with tracing, evals, and experiments

Collaborative LLM development platform for building, testing, and monitoring AI features.

Enterprise ML monitoring, testing, and AI quality management for Snowflake-centric teams.

Open-source LLM observability and prompt management platform for AI engineering teams.

Free open-source desktop widget tracking tokens, cost, and limits across 29+ AI coding tools.

Open-source, OpenTelemetry-native LLM observability and AI engineering platform for teams.

Free open-source AI usage tracking & analytics for developers

Unified lakehouse platform for data, analytics, and AI at scale

Arya.ai — pre-built AI models for finance, from fraud detection to agentic workflows.

OpenTelemetry-native observability with autonomous AI SRE Agent0 and AI Coding Insights.

Open-source observability and evaluation for AI agents.

LangSmith: AI agent observability, tracing, and evaluation platform

Open-source LLM observability for tracing, evaluating, and optimizing AI agents end-to-end.

AI observability and eval engineering platform that turns offline evals into production guardrails.

Community-driven LLM leaderboard for ranking AI models by real votes

AI observability and evals that auto-fix agent code via git

Open-source OpenTelemetry LLM observability for Python devs

Enterprise AI quality platform unifying LLM evaluation, observability, red teaming, and governance.

Free open-source OpenTelemetry-native AI agent evaluation and tracing

Open source AI engineering platform for building, debugging, evaluating, and monitoring agents, LLMs, and ML models.

AWS's all-in-one platform for data, analytics, and AI

Track, forecast, and optimize AI spend across providers.