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LangChain

Leader#1 in Artificial Intelligence

Most cited AI agent framework in 2026; LangGraph has 8,200+ GitHub stars. $25M Series A at $200M valuation. LangSmith observability platform for production agents. Used in majority of enterprise multi-agent deployments; 80K+ GitHub stars total.

Best for: AI Agent FrameworkMarket leader
90
AI Score
Grade A
AI Visibility Score (Beta)
Artificial IntelligenceAI Agent FrameworkWebsiteUpdated September 2026

Company Overview

About LangChain

LangChain was founded in 2022 by Harrison Chase and emerged from the open-source community as the dominant framework for building applications powered by large language models. Originally a Python library, it provided developers with composable building blocks—chains, agents, memory modules, and tool integrations—to connect LLMs with external data sources and APIs. The framework addressed a critical gap: making it practical to build production-grade LLM applications beyond simple prompt-and-response patterns.

Business Model & Competitive Advantage

LangChain's product portfolio has expanded significantly, with LangGraph serving as its graph-based orchestration layer for stateful, multi-actor AI agent workflows. LangSmith provides observability, debugging, and evaluation tooling for LLM pipelines in production. The commercial LangChain Platform offers hosted deployment and collaboration features for enterprise teams. These products target AI engineers, ML teams at enterprises, and the broader developer community building agent-based systems and RAG pipelines.

Competitive Landscape 2025–2026

With over 100,000 active developers and LangGraph accumulating 8,200+ GitHub stars, LangChain remains the most cited AI agent framework heading into 2026. The company raised a $25M Series A at a $200M valuation and has become deeply embedded in how enterprises build and deploy AI agents. Its ecosystem of integrations—covering hundreds of LLM providers, vector databases, and tools—makes it a foundational layer of the modern AI application stack.

Founded
2022
Curated content • Fact-checked and verified

Recent Activity

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release
deepagents deepagents==0.7.11

### Features - Added SDK integration hooks for rubric graders ([#5874](https://github.com/langchain-ai/deepagents/issues/5874)) --- Internal maintainers: @mdrxy Released by: @mdrxy <details> <summary>Git log since deepagents==0.7.10</summary> This commit history includes changes to this package. Commits are listed newest first. - [`4bc1100`](https://github.com/langchain-ai/deepagents/commit/4bc11004ba86999c2f6d59b1d958b53195619bcc) release(deepagents): 0.7.11 (#5977) - [`07c0340`](https://github.com/langchain-ai/deepagents/commit/07c0340bc41e3717f1cd73705b71f1f6a87d753f) feat(sdk): add rubric grader integration hooks (#5874) - [`77b0f01`](https://github.com/langchain-ai/deepagents/commit/77b0f018f9d736c9409e44d03edaf9985b59f271) chore(deps): raise dependency minimums for `all` (#5936) </details>

release
deepagents deepagents-code==0.1.65

### Features - Added Python extension support, including discovery, configuration and loading, runtime hosting, and trust and inspection UX ([#5631](https://github.com/langchain-ai/deepagents/issues/5631), [#5632](https://github.com/langchain-ai/deepagents/issues/5632), [#5633](https://github.com/langchain-ai/deepagents/issues/5633), [#5634](https://github.com/langchain-ai/deepagents/issues/5634)) - Added a `/summarization-model` command and model picker for configuring the summarization model ([#5884](https://github.com/langchain-ai/deepagents/issues/5884), [#5932](https://github.com/langchain-ai/deepagents/issues/5932)) - Added support for optional extra uninstall commands ([#5875](https://github.com/langchain-ai/deepagents/issues/5875)) - Added an option to show visible reasoning ([#5887](https://github.com/langchain-ai/deepagents/issues/5887)) ### Bug Fixes - Improved model and task reliability by retrying interrupted model streams, recovering stale pending work before compaction,

release
deepagents deepagents-code==0.1.64

### Features - Added trace metadata attribution for skill invocations ([#5925](https://github.com/langchain-ai/deepagents/issues/5925)). - Added a list of MCP servers that require login ([#5867](https://github.com/langchain-ai/deepagents/issues/5867)). - Added the ability to copy the current model from the picker header ([#5904](https://github.com/langchain-ai/deepagents/issues/5904)). - Linked the doctor commit hash to GitHub ([#5920](https://github.com/langchain-ai/deepagents/issues/5920)). - Standardized the external editor shortcut ([#5911](https://github.com/langchain-ai/deepagents/issues/5911)). ### Bug Fixes - Deferred recursion-limit handling to the LangGraph server ([#5882](https://github.com/langchain-ai/deepagents/issues/5882)). - Disabled Git terminal prompts in `execute` ([#5878](https://github.com/langchain-ai/deepagents/issues/5878)). - Improved privacy and debug-only visibility for MCP token and editable paths ([#5866](https://github.com/langchain-ai/deepagents/issues/5

release
deepagents deepagents==0.7.10

### Bug Fixes - Prevent local shell commands from stealing TUI input ([#5873](https://github.com/langchain-ai/deepagents/issues/5873)) - Surface sandbox glob failures instead of reporting no matches ([#5566](https://github.com/langchain-ai/deepagents/issues/5566)) --- Internal maintainers: @mdrxy Released by: @mdrxy <details> <summary>Git log since deepagents==0.7.9</summary> This commit history includes changes to this package. Commits are listed newest first. - [`d26b53a`](https://github.com/langchain-ai/deepagents/commit/d26b53ad12265375c6dcf6b1c1501e0a4adf0ea3) release(deepagents): 0.7.10 (#5838) - [`7afa60e`](https://github.com/langchain-ai/deepagents/commit/7afa60efc96c6852933eb6a0d5c9f699cd751e43) chore(deps): raise dependency minimums for `all` (#5912) - [`c94a090`](https://github.com/langchain-ai/deepagents/commit/c94a090c1b21918c9e4eced52ecb4e3bf7476f43) fix(sdk): prevent local shell commands from stealing TUI input (#5873) - [`1c2355e`](https://github.com/langchain-ai/deepag

release
deepagents deepagents-talon==0.0.6

### Bug Fixes - Removed `extract-zip` from the WhatsApp bridge dependency tree. ([#5924](https://github.com/langchain-ai/deepagents/issues/5924)) --- Internal maintainers: @mdrxy Released by: @mdrxy <details> <summary>Git log since deepagents-talon==0.0.5</summary> This commit history includes changes to this package. Commits are listed newest first. - [`9300b7c`](https://github.com/langchain-ai/deepagents/commit/9300b7c45ebe02288cf5f47e1364f561f5b57780) release(deepagents-talon): 0.0.6 (#5926) - [`7301d01`](https://github.com/langchain-ai/deepagents/commit/7301d01e483d0b76745c725134ec09db82f38856) fix(talon): drop extract-zip from the WhatsApp bridge dependency tree (#5924) - [`47f357b`](https://github.com/langchain-ai/deepagents/commit/47f357b27ebecf2ee9e14fbfd6ce295ec8e75788) release(deepagents-acp): 0.0.11 (#5908) - [`6bb4423`](https://github.com/langchain-ai/deepagents/commit/6bb4423bf63f313974e0cc6d124a93f8aa3795ba) chore(deps): raise dependency minimums for `all` (#5916) - [`7af

release
langchain langchain==1.4.0a1

Initial release fix(langchain): name the content type MCP conversion could not handle release(langchain): 1.4.0a1 test(langchain): skip MCP tests on a pydantic older than `mcp` supports test(langchain): drive MCP tests through FastMCP's own utilities fix(langchain/mcp): review edits (#39974) Merge remote-tracking branch 'origin/master' into sydney-runkle/langchain/simplify-mcp-adapter fix(langchain): import `assert_never` from `typing_extensions` test(langchain): fix type errors in the MCP test suite test(langchain): cover protocol eras across a multi-server fleet test(langchain): cover both MCP protocol eras through one adapter refactor(langchain): one elicitation request type per mode refactor(langchain): keep the elicitation types out of `langchain.mcp` fix(langchain): make the two FastMCP-private dependencies fail loudly refactor(langchain): one elicitation response type per action refactor(langchain): refuse MCP continuation rounds instead of polling release(langchain): 1.3.18 (#3

release
langchain langchain-fireworks==1.6.1

Changes since langchain-fireworks==1.6.0 release(fireworks): 1.6.1 (#39975) fix(fireworks): drop reasoning history blocks (#39973) chore(model-profiles): refresh model profile data (#39844)

release
langchain langchain-core==1.6.1

Changes since langchain-core==1.6.0 revert: release(core): 1.6.2 (#39971) release(core): 1.6.2 (#39967) fix(core): shore up indexing in genai v1 streaming content (#39964) fix(core): make `StructuredTool` JSON-serializable (#39631) chore(deps): bump minor and patch dependencies (#39869) release(core): 1.6.1 (#39832) feat(core): propagate gateway information on error path (#39829)

release
langchain langchain==1.3.18

Changes since langchain==1.3.17 release(langchain): 1.3.18 (#39966) fix(langchain): preserve content-block shape in PIIMiddleware redaction (#39894) fix(core): shore up indexing in genai v1 streaming content (#39964)

release
openwiki v0.4.3

### Patch Changes - [#740](https://github.com/langchain-ai/openwiki/pull/740) [`ec95f45`](https://github.com/langchain-ai/openwiki/commit/ec95f453f60e59ef64bd78a63775ddfd2ceea864) Thanks [@colifran](https://github.com/colifran)! - fix: finalize repository generation once when source changes during a run

release
openwiki v0.4.2

### Patch Changes - [#737](https://github.com/langchain-ai/openwiki/pull/737) [`d9e958b`](https://github.com/langchain-ai/openwiki/commit/d9e958bfcf798b1dcc9d0e6240c186b127d045ee) Thanks [@colifran](https://github.com/colifran)! - fix: allow init and update runs to snapshot pages that do not exist yet

release
openwiki v0.4.1

### Patch Changes - [#724](https://github.com/langchain-ai/openwiki/pull/724) [`57948ad`](https://github.com/langchain-ai/openwiki/commit/57948ad646f5d97cd1512362421bc629365d902a) Thanks [@akyourowngames](https://github.com/akyourowngames)! - fix: keep hint/legend overlay inside the graph panel and make background clicks no longer clear the reader - [#730](https://github.com/langchain-ai/openwiki/pull/730) [`9f95289`](https://github.com/langchain-ai/openwiki/commit/9f95289d7c301c98c908422c24a94877fd9efa41) Thanks [@colifran](https://github.com/colifran)! - fix: stabilize generated wiki formatting and claims hashes - [#728](https://github.com/langchain-ai/openwiki/pull/728) [`d219653`](https://github.com/langchain-ai/openwiki/commit/d219653dd9d38d5645725da142527319224c392c) Thanks [@colifran](https://github.com/colifran)! - fix: prevent invalid optional OKF metadata from aborting wiki generation by repairing or removing it deterministically - [#732](https://github.com/langchain-ai/openw

Key Differentiators

Market Leader

LangChain is recognized as a market leader in the AI Infrastructure sector, demonstrating strong industry presence and customer trust.

Top 3 Ranked

Ranked #1 in the AI Infrastructure category, consistently recognized for excellence.

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