LangSmith vs OpenAI Agents SDK
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
OpenAI Agents SDK is the stronger AI pick in AI Agents: it has a visibility score of 31.4 versus 3 for LangSmith, and ranks ahead in 80% of the answers that name both.
Choose LangSmith if…
- You need SOC 2 Type II or HIPAA or GDPR or ISO 27001 (Engine feature) coverage
- strong production observability
- tracing, debugging and response evaluation
Choose OpenAI Agents SDK if…
- You want the brand AI engines rank higher (31.4 vs 3)
- AI answers describe it more positively (45% vs 17% positive)
- You need SOC 2 Type 2 or ISO/IEC 27001:2022 or ISO/IEC 27701:2019 or CSA STAR Level 1 coverage
- Widely adopted platform for enterprise and developer agents
AI visibility side by side
Latest weekly run · Nov 3
| Metric | LangSmith | OpenAI Agents SDK |
|---|---|---|
| Visibility score | 3% | 31.4% |
| Change vs last week | New | New |
| Rank in AI Agents | #31 | #2 |
| Share of voice | 0.9% | 5.8% |
| Mentions this run | 6 | 38 |
| Positive in AI answers | 17% | 45% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
LangSmith 0pp · OpenAI Agents SDK 0pp over 0 weekly runs.
Engine by engine
OpenAI Agents SDK leads on 3 of 3 engines
Head to head in AI answers
5 engine answers name both brands
| Prompt | Engine | LangSmith | OpenAI Agents SDK |
|---|---|---|---|
| What should an AI agent platform integrate with? | ChatGPT | #17 | #10 |
| What should an AI agent platform integrate with? | AI Mode | #9 | #1 |
| Best AI agent platform for startups | ChatGPT | #4 | #5 |
| Compare the leading AI Agents platforms | ChatGPT | #13 | #1 |
| Official website of the top AI agent platform vendors | Perplexity | #14 | #1 |
Features, pricing & fit
| Dimension | LangSmith | OpenAI Agents SDK |
|---|---|---|
| Deployment | Cloud, Bring Your Own Cloud, and Self-hosted | Runs inside the customer's own application; the customer controls deployment, storage and approvals. |
| Compliance | SOC 2 Type II, HIPAA, GDPR, ISO 27001 (Engine feature) | SOC 2 Type 2, ISO/IEC 27001:2022, ISO/IEC 27701:2019, CSA STAR Level 1 |
| Headquarters | San Francisco, California | 1455 and 1515 Third Street, San Francisco |
| Funding | Series B | $122 billion round closed March 31, 2026 at $852 billion post-money, anchored by Amazon, Nvidia and SoftBank · $180000M raised |
| Best for | — | Teams already building on OpenAI models that want a lightweight framework to write their own agent logic. |
Pros and cons
Themes from the AI answers that mention each brand
LangSmith
- strong production observability
- tracing, debugging and response evaluation
OpenAI Agents SDK
- Widely adopted platform for enterprise and developer agents
- Streamlined framework for native GPT integration and function calling
- Good for rapid prototyping
- Access to foundational models and agent workflows via the OpenAI Platform
- A framework rather than a complete enterprise automation suite
- Requires separate payment for OpenAI model API usage
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “LangSmith vs OpenAI Agents SDK”, https://slateindex.ai/compare/langsmith-vs-openai-agents-sdk, data of Nov 3, 2026. Licence: CC BY 4.0.