LangChain launches LangSmith Fleet for no-code AI agent creation
What happened
Between the Dec 29, 2025 and Mar 30, 2026 captures of LangChain's pricing page, Pulse recorded 3 changes: LangSmith Fleet added: create agents using everyday language. Developer: 1 Fleet agent + 50 runs/mo. Plus: unlimited Fleet agents + 500 runs/mo ($0.05/run overage). Enterprise: custom Fleet packages; Plus plan seat limit removed - changed from 'Up to 10 seats' to 'Add unlimited seats' at $39/seat/month; Deployment metric row in feature comparison table renamed from 'Agent runs (Deployment)' to 'Deployment runs (Deployment)', reflecting updated terminology for the LangSmith Deployment billing metric. Pulse files it as a packaging change (feature added, limit increase, positioning) with an upward direction. Pulse's latest capture (Oct 5, 2026) lists Plus at $39.
It lands 10 days after LangChain's previous change, "LangChain rebrands Agent Builder to Fleet across pricing tiers" (Mar 24, 2026). Before that Pulse recorded "LangChain Replaces Community Slack With Forum for Developer Plan" (Week 5, 2026), "LangChain Broadens Developer Plan to Welcome All Solo Users" (Week 3, 2026) and "LangChain Implements 5x Price Increase for Deployment with New 'Agent Run' Billing Model" (Jan 12, 2026). LangChain has been tracked since 2024-11-17.
In the same window Together AI, Huggingface, OpenAI, Cohere and Anthropic also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- Developer, Plus, Enterprise · FeatureAddedNo LangSmith FleetLangSmith Fleet
- Plus · LimitRewordedUp to 10 seatsAdd unlimited seats
- — · PositioningReworded
BeforeAgent runs (Deployment)
AfterDeployment runs (Deployment)
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Developer, Plus, Enterprise | Feature | No LangSmith Fleet | LangSmith Fleet | Added |
| Plus | Limit | Up to 10 seats | Add unlimited seats | Reworded |
| — | Positioning | Agent runs (Deployment) | Deployment runs (Deployment) | Reworded |
Values as written on LangChain's public pricing page in the two captures Pulse compared; where the page states no number, the cells give the wording before and after.
Evidence
The two captures Pulse comparedFull-page captures of LangChain's pricing page (langchain.com) from Dec 29, 2025 and Mar 30, 2026; the change is marked near the top of the page, where LangSmith Fleet now appears.
Sign in to see the evidence
The two full-page captures with this change marked up are free with an account.
LangChain, the last 90 days
Full history- Jun 16, 2026improvedLangChain unlocks unlimited Fleet agents for free Developer plan
- Jun 1, 2026packagingLangChain launches metered billing at $1.50 per compute unit
- May 19, 2026packagingLangChain launches ephemeral agent sandboxes with usage-based pricing
- Apr 3, 2026packagingLangChain launches LangSmith Fleet for no-code AI agent creation · this change
- Mar 24, 2026packagingLangChain rebrands Agent Builder to Fleet across pricing tiers
- Week 5, 2026packagingLangChain Replaces Community Slack With Forum for Developer Plan
- Week 3, 2026packagingLangChain Broadens Developer Plan to Welcome All Solo Users
- Jan 12, 2026packagingLangChain Implements 5x Price Increase for Deployment with New 'Agent Run' Billing Model
Across AI & Machine Learning in the same window
All AI & Machine Learning changes- Together AIApr 3Together AI Raises GPU Prices Up to 36% and Restructures Cloud Tiers
- HuggingfaceApr 3Huggingface Launches Data Storage Pricing Starting at $12/TB/mo
- OpenAIApr 2OpenAI restructures Plus plan, moves GPT-5.4 Thinking to credit-based access
- CohereApr 2Cohere Removes Rerank 4 Pro Large Tier From Model Vault Pricing
- AnthropicMar 16Anthropic API simplifies pricing, removes volume-based tiers
Questions about this change
Did LangChain raise prices in March 2026?
No list-price increase was recorded between Dec 29, 2025 and Mar 30, 2026. The change Pulse detected was a packaging change: feature added, limit increase, positioning.
What changed on LangChain's pricing page between Dec 29, 2025 and Mar 30, 2026?
Developer, Plus, Enterprise feature: No LangSmith Fleet → LangSmith Fleet, added; Plus limit: Up to 10 seats → Add unlimited seats, reworded; positioning: Agent runs (Deployment) → Deployment runs (Deployment), reworded. Pulse compared the captures it took on Dec 29, 2025 and Mar 30, 2026; the before/after table above lists each item as written on the page.
How often does LangChain change its pricing?
Pulse recorded 4 other pricing-page changes for LangChain in the 90 days before this one; the previous change was "LangChain rebrands Agent Builder to Fleet across pricing tiers" on Mar 24, 2026; LangChain has been tracked since 2024-11-17.