# LangChain vs smolagents

**Leader by Vioscale score:** LangChain

| Attribute | LangChain | smolagents |
|---|---|---|
| **Vioscale score** | 80.7 (70% (medium)) | 54.8 (35% (low)) |
| activity.commits_last_30d | 100 | 2 |
| adoption.dependent_repos | 18,663 | 0 |
| adoption.github_stars | 145,063 | 29,002 |
| adoption.package_downloads_weekly | 2,967,570 | - |
| deployment.options | `{"cloud":true,"hybrid":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | LangSmith provides observability through tracing to debug agent behavior, evaluation capabilities to test and score agents with human review and automated assessments, and deployment services to run agents at scale. | An open-source framework that enables you to create AI agents in just a few lines of code. It provides two agent types: CodeAgents that write actions as Python code, and ToolCallingAgents for JSON/text-based tool invocation. Supports any LLM provider and sandboxed code execution. |
| features.capabilities | `{"role":"observability","evaluation":true,"a2a_support":true,"mcp_support":true,"open_source":true,"managed_cloud":true,"model_serving":true,"pricing_model":"usage-based-saas","self_hostable":true,"multi_provider":true,"vpc_deployment":true,"otel_compatible":true,"deployment_model":"managed-platform","no_train_on_data":"unknown","streaming_output":true,"human_in_the_loop":true,"llm_observability":true,"prompt_management":true,"framework_agnostic":true,"multi_language_sdk":true,"memory_architecture":"persistent","orchestration_model":"multi-agent-sequential","tool_function_calling":true,"code_execution_sandbox":true,"model_provider_agnostic":true}` | `{"open_source":true,"pricing_model":"open-source-self-host","deployment_model":"library-self-hosted","memory_architecture":"session","orchestration_model":"multi-agent-hierarchical","tool_function_calling":true,"code_execution_sandbox":true,"model_provider_agnostic":true}` |
| integrations.count | 1,000 | 33 |
| integrations.list | `[{"name":"OpenAI"},{"name":"Anthropic"},{"name":"Cohere"},{"name":"Google"},{"name":"Azure OpenAI"},{"name":"Azure AI Search"},{"name":"Microsoft Fabric"},{"name":"Azure Kubernetes Service"},{"name":"OpaquePrompts"}]` | `[{"name":"OpenAI"},{"name":"Anthropic"},{"name":"LiteLLM"},{"name":"Ollama"},{"name":"Transformers"},{"name":"DuckDuckGoSearchTool"},{"name":"Hugging Face Inference API"},{"name":"Together AI"},{"name":"Groq"},{"name":"PyCharm"}]` |
| language.primary | Python | Python |
| license.spdx | MIT | Apache-2.0 |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Developer","summary":"Free tier: 1 seat, 5k traces/month","features":["1 free seat","5k base traces/month","Tracing and analytics","Access to LangSmith platform"],"minSeats":1,"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Personal projects and single-seat usage","contactSales":false,"includedLimits":{"traces":"5k/month"}},{"free":false,"name":"Plus","summary":"$39/seat/month + usage (LCU/LSU), 10k traces included, 1 free small deployment","features":["Unlimited seats","10k base traces/month","1 free small serverless deployment","Full tracing and analytics","Evaluation tools"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"seat","amount":39,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"LCU"},"kind":"metered","amount":1.5,"currency":"USD"},{"per":{"qty":1,"unit":"LSU"},"kind":"metered","amount":1,"currency":"USD"}],"description":"Teams with moderate usage and collaboration requirements","contactSales":false,"includedLimits":{"traces":"10k/month","serverless_deployments":"1 small free"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, annual billing, includes premium support and white-glove onboarding","features":["Advanced administration","Dedicated support","Custom deployments","White-glove onboarding","Proactive monitoring","Premium SLA"],"commitment":"annual","description":"Advanced security, support, and custom deployment options","contactSales":true}],"addOns":[{"name":"Additional Serverless/Dedicated Deployments"}],"summary":"Free Developer plan (5k traces). Plus plan $39/seat/month. Enterprise custom. Usage-based pricing for compute (LCU=$1.50) and storage (LSU=$1.00).","currency":"USD","freeTier":true,"sourceUrl":"https://www.langchain.com/pricing","retrievedAt":"2026-08-21T12:42:05.738Z","startingPrice":{"unit":"seat","amount":39,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"open_source","summary":"Open source and free. Optional paid services (Hugging Face Spaces, Inference Endpoints) for hosting agents start from $0.","freeTier":true,"sourceUrl":"https://huggingface.co/pricing","retrievedAt":"2026-08-21T11:02:04.504Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | mid | free |
| pricing.starting_price | `{"amount":39,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 14 |
| release.history | `[{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain%3D%3D1.3.17","date":"2026-08-25T02:40:53Z","type":"stable","version":"langchain==1.3.17"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-perplexity%3D%3D1.4.1","date":"2026-08-21T14:08:45Z","type":"stable","version":"langchain-perplexity==1.4.1"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain%3D%3D1.3.16","date":"2026-08-20T14:35:30Z","type":"stable","version":"langchain==1.3.16"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-fireworks%3D%3D1.6.0","date":"2026-08-20T17:47:18Z","type":"stable","version":"langchain-fireworks==1.6.0"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-anthropic%3D%3D1.6.1","date":"2026-08-20T14:06:49Z","type":"stable","version":"langchain-anthropic==1.6.1"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-openai%3D%3D1.6.0","date":"2026-08-19T21:45:02Z","type":"stable","version":"langchain-openai==1.6.0"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.6.0","date":"2026-08-19T15:55:57Z","type":"stable","version":"langchain-core==1.6.0"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-anthropic%3D%3D1.6.0","date":"2026-08-19T21:39:54Z","type":"stable","version":"langchain-anthropic==1.6.0"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-openai%3D%3D1.5.2a1","date":"2026-08-18T01:51:38Z","type":"stable","version":"langchain-openai==1.5.2a1"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-openai%3D%3D1.5.2","date":"2026-08-18T17:38:11Z","type":"stable","version":"langchain-openai==1.5.2"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.5.6","date":"2026-08-17T21:26:47Z","type":"stable","version":"langchain-core==1.5.6"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-openrouter%3D%3D0.2.8","date":"2026-08-14T19:03:45Z","type":"stable","version":"langchain-openrouter==0.2.8"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-openai%3D%3D1.5.1","date":"2026-08-14T15:47:44Z","type":"stable","version":"langchain-openai==1.5.1"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.5.5","date":"2026-08-14T18:56:41Z","type":"stable","version":"langchain-core==1.5.5"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-openai%3D%3D1.5.0","date":"2026-08-13T13:15:00Z","type":"stable","version":"langchain-openai==1.5.0"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-anthropic%3D%3D1.5.6","date":"2026-08-13T02:31:03Z","type":"stable","version":"langchain-anthropic==1.5.6"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain%3D%3D1.3.15","date":"2026-08-11T19:11:09Z","type":"stable","version":"langchain==1.3.15"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.5.4","date":"2026-08-11T18:03:10Z","type":"stable","version":"langchain-core==1.5.4"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-anthropic%3D%3D1.5.5","date":"2026-08-11T19:16:55Z","type":"stable","version":"langchain-anthropic==1.5.5"},{"url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-openai%3D%3D1.4.3","date":"2026-08-10T13:23:34Z","type":"stable","version":"langchain-openai==1.4.3"}]` | `[{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.26.0","date":"2026-05-29T05:09:47Z","type":"stable","version":"v1.26.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.25.0","date":"2026-05-14T11:38:12Z","type":"stable","version":"v1.25.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.24.0","date":"2026-01-16T05:38:28Z","type":"stable","version":"v1.24.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.23.0","date":"2025-11-17T14:35:02Z","type":"stable","version":"v1.23.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.22.0","date":"2025-09-25T08:47:27Z","type":"stable","version":"v1.22.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.21.3","date":"2025-09-01T14:35:16Z","type":"stable","version":"v1.21.3"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.21.2","date":"2025-08-20T05:15:23Z","type":"stable","version":"v1.21.2"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.21.1","date":"2025-08-11T10:52:43Z","type":"stable","version":"v1.21.1"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.21.0","date":"2025-08-07T10:48:49Z","type":"stable","version":"v1.21.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.20.0","date":"2025-07-10T16:22:39Z","type":"stable","version":"v1.20.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.19.0","date":"2025-06-24T08:43:14Z","type":"stable","version":"v1.19.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.18.0","date":"2025-06-10T14:15:08Z","type":"stable","version":"v1.18.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.17.0","date":"2025-05-27T11:26:12Z","type":"stable","version":"v1.17.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.16.1","date":"2025-05-16T15:06:21Z","type":"stable","version":"v1.16.1"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.16.0","date":"2025-05-16T05:59:44Z","type":"stable","version":"v1.16.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.15.0","date":"2025-05-07T15:25:24Z","type":"stable","version":"v1.15.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.14.0","date":"2025-04-18T09:59:12Z","type":"stable","version":"v1.14.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.13.0","date":"2025-04-02T15:10:31Z","type":"stable","version":"v1.13.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.12.0","date":"2025-03-20T09:37:38Z","type":"stable","version":"v1.12.0"},{"url":"https://github.com/huggingface/smolagents/releases/tag/v1.11.0","date":"2025-03-14T19:55:16Z","type":"stable","version":"v1.11.0"}]` |
| reliability.sla_pct | 99.5 | - |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.iso27001 | yes | - |
| security.scorecard | 5.9 | - |
| security.soc2 | yes | - |
| security.vulnerabilities | `{"count":21,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=langchain&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` | `{"count":5,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=smolagents&per_page=100","last_12m":4,"max_severity":"CRITICAL"}` |

## Capabilities (AI Agent Frameworks)

| Capability | LangChain | smolagents |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Orchestration model | Multi agent sequential | Multi agent hierarchical |
| Model provider agnostic | ✓ | ✓ |
| Tool function calling | ✓ | ✓ |
| Code execution sandbox | ✓ | ✓ |
| Memory architecture | Persistent | Session |
| Mcp support | ✓ | - |
| A2a support | ✓ | - |
| Human in the loop | ✓ | - |
| Streaming output | ✓ | - |
| Structured output | - | - |
| Multi language SDK | ✓ | - |
| Deployment model | Managed platform | Library self hosted |
| Open source | ✓ | ✓ |
| Pricing model | Usage based saas | Open source self host |

*Source: Vioscale. Generated 2026-09-01T16:48:32.888Z. "-" = undocumented, not absent.*