Elastic vs Weights & Biases

Elastic — Infrastructure · Public · $10.2B mkt cap · 4 of 4 figures sourced  |  Weights & Biases — Infrastructure · Acquired · 1 of 1 figure sourced

Relationship

Elastic LLM Observability and W&B Weave both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Weights & Biases is acquired, with no independent scale.

Assembled from the recorded fields for this pair, not hand-checked. The comparison below is read from each company’s own profile.

3 of 9 capabilitiesShared product type

3 of 9 capabilities — Shares evaluation and observability, model hosting and model inference.

Ludbee capability tags · from the product records

Shared product type — Both ship platform.

Ludbee product records

Aligned comparison

FieldElasticWeights & Biases
Size$10.2B mkt capnot disclosed
Employees4,019—
Founded20122017 5 yrs later
StatusPublicAcquired
CategoryInfrastructureInfrastructure match
Stack layerAgent platform, Application, Model API, PlatformAPI service, Developer tool, Platform
HeadquartersAmsterdam, NetherlandsSan Francisco, USA

Capability overlap

Shared · 3

Evaluation and observabilityModel hostingModel inference

Not verified for Weights & Biases · 6

Agent orchestrationData analysisKnowledge retrievalThreat detection and responseVector searchWorkflow automation

Recorded for Elastic. Weights & Biases’s product records say nothing either way — a missing record is not a missing capability.

Not verified for Elastic · 2

GPU cloudModel training

Recorded for Weights & Biases. Elastic’s product records say nothing either way — a missing record is not a missing capability.

Products, side by side

Algorithmic pairing — assembled from recorded fields, not hand-checked

Elastic

Platform

Elastic AI AssistantPlatform

A conversational assistant embedded in Kibana that answers natural-language questions against a customer's own indexed data across Elastic's Observability, Security and Search solutions.

Weights & Biases

Platform

W&B ModelsPlatform

Experiment tracking for model training runs, recording hyperparameters, metrics and artifacts so runs can be compared, swept and reproduced.

W&B RegistryPlatform

Curated central repository providing versioning, aliases, lineage tracking and governance for models and datasets across the ML lifecycle.

W&B Serverless RLPlatform

Managed reinforcement-learning fine-tuning service for LLMs on CoreWeave's managed GPU cluster, billed per-token for rollouts with automatic scale-to-zero.

W&B Serverless SFTPlatform

Serverless supervised fine-tuning for LLMs on CoreWeave's managed GPU cluster, run alongside Serverless RL in a unified workflow via the Agent Reinforcement Trainer (ART) API.

No counterpart

Elastic sells these in a stack layer with no product recorded for Weights & Biases yet — nothing on the other side to compare them against.

Application

Elastic AI SOC EngineApplication

An AI security-operations layer that correlates alerts from a customer's existing security tools, prioritizes threats and guides response workflows without replacing their SIEM.

Elastic AIOpsApplication

GenAI- and ML-driven capability inside Elastic Observability that automatically detects, diagnoses and helps resolve operational issues, providing recommended actions for SREs.

Elastic LLM ObservabilityApplication

Monitoring capability inside Elastic Observability for generative-AI and agentic applications: performance, cost control, guardrail tracking and reliability for GenAI workloads.

Elastic SecurityApplication

Agentic security-operations platform unifying SIEM, XDR and native automation, with autonomous agents handling detection-to-response workflows and purpose-built AI skills for threat hunting, alert analysis and detection engineering; supports multiple LLMs including on-premises models.

Agent platform

Elastic Agent BuilderAgent platform

A builder for custom AI agents that answer questions and take actions over data indexed in Elasticsearch, using configurable tools, skills and prompts.

Elastic WorkflowsAgent platform

An automation engine that runs both scripted steps and AI agents which reason through investigations and execute response actions against data in Elasticsearch.

Model API

Elastic Inference ServiceModel API

Hosted inference endpoint that runs Elastic-managed LLMs, the ELSER sparse-embedding model and third-party embedding models for ingest, search and chat without provisioning ML nodes in a customer's own Elasticsearch deployment.

Weights & Biases sells these in a stack layer with no product recorded for Elastic yet — nothing on the other side to compare them against.

API service

W&B Serverless InferenceAPI service

Hosted inference service for open-source and commercial LLMs (OpenAI, Qwen, Llama, Kimi, Phi, DeepSeek, Z.AI) without managing infrastructure.

Developer tool

W&B WeaveDeveloper tool

Tracing, evaluation and production monitoring for LLM and agent applications, capturing each call so prompts and outputs can be scored over time.