Personal
Free
- User seat: 1 seat
Experiment tracking
Weights & Biases vs LangChain Pricing Comparison
Comparing historical price movements, current plan features, and price change logs for Weights & Biases and LangChain.
Weights & Biases
Full Weights & Biases history →16 dated pricing states tracked since 2021. Entry pricing in the latest mapped state starts at $60/mo.
LangChain
Full LangChain history →11 dated pricing states tracked since 2024. Entry pricing in the latest mapped state starts at $39/mo.
Coverage last checked Weights & Biases: 2026-07-14; LangChain: 2026-06-07. Verify current offers on the vendors' pricing page and pricing page. Read the methodology and limitations.
Executive pricing summary
SaasTrack has logged historical pricing snapshots for both Weights & Biases and LangChain in the AI Tooling software category. Currently, Weights & Biases entry pricing starts at $60/mo across 5 plans, while LangChain entry pricing starts at $39/mo across 3 plans. Over the tracking period, Weights & Biases has recorded 200 price adjustments compared to 117 for LangChain.
Weights & Biases vs LangChain Key Metrics Table
| Comparison Metric | Weights & Biases | LangChain |
|---|---|---|
| Starting Entry Price | $60/mo | $39/mo |
| Active Plan Count | 5 plans | 3 plans |
| Logged Price Changes | 200 changes | 117 changes |
| Tracking Since | 2021 | 2024 |
| Market Category | AI Tooling | AI Tooling |
Merged Price History Chart
Weights & BiasesvsLangChainUnified Price Chart
Weights & Biases is blue. LangChain is orange. Filter by window and plan with the controls below.
latest · 2026-09-12
Weights & Biases: Advanced Enterprise, Enterprise, Advanced — quoted on request, never listed with a price; LangChain: Enterprise — quoted on request, never listed with a price.
Weights & Biases plans today
Free
Free
- Storage: 5 GB/mo
AI application evaluations · AI model experiment tracking · AI application tracing
Pro
$60 /mo
- Storage: 100 GB/mo
Unlimited teams for collaboration
Advanced Enterprise
Contact sales
Flexible deployment options
Enterprise
Contact sales
HIPAA compliant option · Single tenant option with choice of region
Pricing timeline16 changes since Jan 2021
Todaylive prices
LangChain plans today
Developer
Free
- 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
- 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
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
Todaylive prices
Weights & Biases recent price changes
Weights & Biases change log
| When | Event | What changed |
|---|---|---|
| 2026-07-14 | Plan added | Advanced Enterprise |
LangChain recent price changes
LangChain change log
Frequently asked questions
Which is cheaper, Weights & Biases or LangChain?
Entry pricing for Weights & Biases starts at $60/mo, while LangChain entry pricing starts at $39/mo. Check the interactive timeline chart above to compare plan features and seat pricing side by side.
How frequently do Weights & Biases and LangChain adjust their prices?
SaasTrack has logged 200 price modifications for Weights & Biases since 2021 and 117 price modifications for LangChain since 2024.
Can I track future price increases for Weights & Biases and LangChain?
Yes, creating a free account on SaasTrack allows you to set automated watchlist alerts whenever Weights & Biases, LangChain, or other competitors update their plans.
Are historical price change logs free to view for Weights & Biases vs LangChain?
Yes! All historical pricing charts, active plan feature breakdowns, and change logs for both Weights & Biases and LangChain are 100% free to view on SaasTrack without creating an account.
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