LangChain retires LCU billing, moves all usage to $1 Standard Units
What happened
Between the Sep 28, 2026 and Oct 5, 2026 captures of LangChain's pricing page, Pulse recorded one change: LangChain Compute Units ($1.50/LCU) retired; all usage now metered in Standard Units (LSU, $1.00). Metering rates rescaled; Fleet allowances 5/25 LCU became 7/37 LSU; Sandbox 8 LSU. Pulse files it as a packaging change (metric change). Pulse's latest capture (Nov 15, 2026) lists Plus at $39.
This weekly roll-up includes the change Pulse first recorded in a shorter period: "LangChain merges LangSmith LCU and LSU into one $1.00 Standard Unit" (Day 275, 2026, saved Oct 2, 2026). It also records changes none of that period did (metric change), so Pulse counts it as a change of its own. Before that, LangChain's previous recorded change was "LangChain: new Tuned Evaluators usage pricing (0.01 LCU/eval run)" (Aug 24, 2026). LangChain has been tracked since 2024-11-17.
In the same window OpenAI, Together AI, 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.
- RemovedMeteringPricing model
BeforeLangChain Compute Units ($1.50/LCU)
AfterNot listed
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Metering | Pricing model | LangChain Compute Units ($1.50/LCU) | Not listed | Removed |
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 Sep 28, 2026 and Oct 5, 2026; the change is marked near the top of the page, where the LangChain Compute Units ($1.50/LCU) no longer appears.
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LangChain, the last 90 days
Full historyDates are the day each change was detected, Eastern time.
- Nov 12, 2026PackagingLangChain renames LangSmith Deployment to Agent Server, pricing unchanged
- Oct 4, 2026PackagingLangChain retires LCU billing, moves all usage to $1 Standard Units This change
- Oct 2, 2026PackagingLangChain merges LangSmith LCU and LSU into one $1.00 Standard Unit
- Aug 24, 2026ImprovementLangChain: new Tuned Evaluators usage pricing (0.01 LCU/eval run)
- Aug 3, 2026PackagingLangChain: VC-backed startup discount now discloses $10K credit amount
- Jul 28, 2026PackagingLangChain: Startup discount program now discloses $10,000 credit amount
- Jul 26, 2026ImprovementLangChain adds Support Portal + Slack support channels
- Jul 21, 2026PackagingLangChain overhauls LangSmith billing: new LSU, size-based…
Across AI & Machine Learning in the same window
All AI & Machine Learning changes- OpenAIOct 5OpenAI API halves GPT-6.1 Sol cached input price to $0.10 per 1M tokens
- Together AIOct 5Together AI adds Tev1 4B Experimental at $0.04 input with free output
- CohereOct 5Cohere cuts Model Vault Embed pricing 25% with new Embed 5 Fast and Pro tiers
- AnthropicSep 28Anthropic API: Opus 5.5 launches, replaces Opus 5 as flagship
Questions about this change
Did LangChain raise prices in October 2026?
No list-price increase was recorded between Sep 28, 2026 and Oct 5, 2026 UTC. The change Pulse detected was a packaging change: metric change.
What changed on LangChain's pricing page between Sep 28, 2026 and Oct 5, 2026 UTC?
Metering pricing model removed: LangChain Compute Units ($1.50/LCU). Pulse compared the captures it took on Sep 28, 2026 and Oct 5, 2026 UTC; the before/after table above lists each item as written on the page.
How often does LangChain change its pricing?
This weekly roll-up includes the change Pulse first recorded in Day 275, 2026 and also records changes none of them did (metric change), so Pulse counts it as a change of its own; Pulse recorded 4 other pricing-page changes for LangChain in the 90 days before this one; the previous change was "LangChain: new Tuned Evaluators usage pricing (0.01 LCU/eval run)" on Aug 24, 2026; LangChain has been tracked since 2024-11-17.