SaasTrack has logged historical pricing snapshots for both LangChain and Weights & Biases in the AI Tooling software category. Currently, LangChain entry pricing starts at $39/mo across 3 plans, while Weights & Biases entry pricing starts at $60/mo across 5 plans. Over the tracking period, LangChain has recorded 117 price adjustments compared to 200 for Weights & Biases.
LangChain vs Weights & Biases Key Metrics Table
Comparison Metric
LangChain
Weights & Biases
Starting Entry Price
$39/mo
$60/mo
Active Plan Count
3 plans
5 plans
Logged Price Changes
117 changes
200 changes
Tracking Since
2024
2021
Market Category
AI Tooling
AI Tooling
Merged Price History Chart
LangChainvsWeights & BiasesUnified Price Chart
LangChain is blue. Weights & Biases is orange. Filter by window and plan with the controls below.
latest · 2026-09-12
LangChain: Enterprise — quoted on request, never listed with a price; Weights & Biases: Advanced Enterprise, Enterprise, Advanced — quoted on request, never listed with a price.
LangChain plans today
Developer
Free
per seat
Fleet agents: 1 agents
Seats: 1 seat
Base traces: 5,000 traces / mo
Fleet runs: 50 runs / mo
Tracing to debug agent execution · Annotation queues · Online and offline evals · Prompt Hub, Playground, and Canvas · Community support · Monitoring and alerting
Plus
$39 /seat/mo
per seat
Workspaces: 3 workspaces
Base traces: 10,000 traces / mo
Dev-sized agent deployment: 1 deployment
Fleet runs: 500 runs / mo
LangSmith Sandboxes · Everything in Developer plan · LangSmith Engine · Fleet agents · Email support
Enterprise
Contact sales
quote
Team trainings & architectural guidance · Support SLA · Everything in Plus plan · Alternative hosting options (hybrid and self-hosted) · Access to deployed engineering team · Custom SSO and RBAC
Pricing timeline11 changes since Feb 2024
Today·live prices
20252026Today
Weights & Biases plans today
Personal
Free
flat
User seat: 1 seat
Experiment tracking
Free
Free
flat
Storage: 5 GB/mo
AI application evaluations · AI model experiment tracking · AI application tracing
Pro
$60 /mo
per seat
Storage: 100 GB/mo
Unlimited teams for collaboration
Advanced Enterprise
Contact sales
quote
Flexible deployment options
Enterprise
Contact sales
quote
HIPAA compliant option · Single tenant option with choice of region
Pricing timeline16 changes since Jan 2021
Today·live prices
20222023202420252026Today
LangChain recent price changes
LangChain change log
Weights & Biases recent price changes
Weights & Biases change log
When
Event
What changed
2026-07-14
Plan added
Advanced Enterprise
Frequently asked questions
Which is cheaper, LangChain or Weights & Biases?
Entry pricing for LangChain starts at $39/mo, while Weights & Biases entry pricing starts at $60/mo. Check the interactive timeline chart above to compare plan features and seat pricing side by side.
How frequently do LangChain and Weights & Biases adjust their prices?
SaasTrack has logged 117 price modifications for LangChain since 2024 and 200 price modifications for Weights & Biases since 2021.
Can I track future price increases for LangChain and Weights & Biases?
Yes, creating a free account on SaasTrack allows you to set automated watchlist alerts whenever LangChain, Weights & Biases, or other competitors update their plans.
Are historical price change logs free to view for LangChain vs Weights & Biases?
Yes! All historical pricing charts, active plan feature breakdowns, and change logs for both LangChain and Weights & Biases are 100% free to view on SaasTrack without creating an account.
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