Future AGI AI Evaluation SDK vs LangSmith
Future AGI AI Evaluation SDK
futureagi.com
LangSmith
langchain.comSide by side
| Figure | Future AGI AI Evaluation SDK | LangSmith |
|---|---|---|
| Price from | $250/mo | $39/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 10 | 3 |
| Spec score · AI Agent Evaluation Tools | 9.3 (#2) | 9.1 (#4) |
| Spec score · Llm Monitoring | 9.1 (#3) | 8.9 (#6) |
| Evaluation | Its evaluation product includes heuristic, code, LLM-as-judge, and agentic evaluations, with templates and CI/CD support. | Evaluation supports offline datasets, online production evaluations, human annotation queues and side-by-side experiment comparison. |
| Funding | Preqin reports a $1.6 million February 2025 pre-seed round co-led by Powerhouse Ventures and Snow Leopard Ventures. | LangChain announced a $125 million Series B at a $1.25 billion valuation on October 20, 2025. |
| Headquarters | San Francisco, California, United States; Bengaluru, Karnataka, India | San Francisco, California, United States |
| Integrations | Future AGI documents integrations with OpenAI, LangChain, LlamaIndex and more than 30 frameworks. | Documented integrations cover OpenAI, Anthropic, Bedrock, Gemini, Mistral, LiteLLM, OpenTelemetry, CrewAI, Vercel AI SDK, PydanticAI, AutoGen and many other frameworks and providers. |
| Purpose | Future AGI describes itself as an open-source platform for simulating, evaluating, optimizing, monitoring, and protecting AI agents. | LangSmith is a commercial agent engineering platform for building, testing, deploying, monitoring, and improving AI agents. |
| Rating on G2 | 4.8 out of 5 from 12 reviews. | 4.4 out of 5 from 78 reviews. |
| Rating on Gartner Peer Insights | 3.0 out of 5 from 1 rating. | 4.4 out of 5 from 25 ratings. |
| Rating on Product Hunt | 4.9 out of 5 from 9 reviews. | 4.8 out of 5 from 19 reviews. |
| Security | Future AGI states SOC 2 Type II, ISO 27001, GDPR, CCPA and HIPAA certification, with ISO 42001 in progress. | LangSmith's trust center lists SOC 2 Type II, ISO 27001:2022, GDPR and HIPAA compliance. |
| Self-hosting | Future AGI says its Docker Compose self-hosted deployment keeps traces, datasets, evaluations, and model calls within the customer's network. | Enterprise customers can run LangSmith self-hosted or hybrid on Kubernetes in AWS, Google Cloud or Azure. |
| Support | The pricing page lists community support for Free and email support for Pay-as-you-go; Scale includes a Slack channel. | The Developer plan includes community support, and the Enterprise plan lists a support SLA. |
| Tracing | Its traceAI instrumentation turns LLM calls, tool use, retrieval, and chain steps into OpenTelemetry spans. | Tracing records agent conversations and runs step by step, including prompts, model calls, tools, errors, latency and token usage. |
| What it does | Future AGI is an AI reliability platform for simulating, evaluating, protecting, observing, optimizing and routing AI agents. | LangSmith is LangChain's framework-agnostic platform for observing, evaluating and deploying AI agents. |
Plans
Future AGI AI Evaluation SDK
- FreeFree
- FreeFree
- Pay-as-you-goFree
- Pay-as-you-goFree
- Boost$250 a month
- Boost$250 a month
- Scale$750 a month
- Scale$750 a month
- Enterprise$2,000 a month
- Enterprise$2,000 a month
In their own words
Future AGI AI Evaluation SDK
Future AGI AI Evaluation SDK is an open-source platform for evaluating, simulating, optimizing, monitoring, and protecting AI agents. Its evaluation options include heuristic, code, LLM-as-judge, and agentic methods, with templates and CI/CD support. traceAI instrumentation converts LLM calls, tool use, retrieval, and chain steps into OpenTelemetry spans. Simulation supports text and voice tests using personas and scenarios; the Free plan includes 1M text simulation tokens and 60 voice minutes per month. The integrations page lists 79 integrations and SDK packages for Python, TypeScript, and Java, including OpenAI, Anthropic, Google GenAI, Vertex AI, AWS Bedrock, and Azure OpenAI. The Apache 2.0 platform offers Docker and SDK self-hosting options. Future AGI says Docker Compose self-hosting keeps traces, datasets, evaluations, and model calls within the customer's network. The platform is presented for startups and enterprise teams building and operating AI agents, with API, web, self-hosted, Linux, macOS, and Windows options. Free usage pauses at its cap; pay-as-you-go usage continues and may incur overage charges.
LangSmith
LangSmith is a commercial agent-engineering platform for building, evaluating, deploying, monitoring, and improving AI agents. It supports offline evaluations on curated datasets and real-time scoring of production interactions. Evaluation methods include human review, heuristic checks, LLM-as-judge evaluators, pairwise comparisons, and custom Python or TypeScript evaluators. Annotation queues route runs to subject-matter experts for feedback that can calibrate evaluations, improve prompts, or augment datasets. The Playground compares prompt versions or model providers, and LangSmith chat can auto-improve prompts. Observability includes agent and retrieval tracing, token and general cost tracking, trajectory monitoring, online evaluations, and webhook or PagerDuty alerts. Traces can arrive through SDKs or an API from LangGraph, custom Python, or other stacks; SDKs are listed for Python, TypeScript, Go, and Java. Hosting ranges from cloud to hybrid and self-hosted Enterprise options. The Developer plan costs nothing, Plus costs $39 a month, and Enterprise pricing is custom.