Cloudflare AI Gateway vs LangSmith
Cloudflare AI Gateway
cloudflare.com
LangSmith
langchain.comSide by side
| Figure | Cloudflare AI Gateway | LangSmith |
|---|---|---|
| Price from | Free | $39/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 3 |
| Spec score · LLM Gateway Software | 8.7 (#5) | 9.2 (#1) |
| Spec score · LLM gateways | 7.9 (#18) | 9.3 (#2) |
| Founded | 2009 | 2023 |
| Headquarters | San Francisco, CA | San Francisco, California, United States |
| Rating on Gartner Peer Insights | 4.3 out of 5 from 67 ratings for Cloudflare API Gateway. | 4.4 out of 5 from 25 ratings. |
| System requirements | The Workers setup guide requires a Cloudflare account and Node.js, with Wrangler used for local development and deployment. | Agent Server deployments require PostgreSQL and Redis; self-hosted installations may use customer-managed PostgreSQL and Redis. |
| What it does | Cloudflare AI Gateway is a managed control plane that routes AI application traffic through one gateway for visibility, controls, billing and logs. | LangSmith is LangChain's framework-agnostic platform for observing, evaluating and deploying AI agents. |
Plans
Cloudflare AI Gateway
- AI Gateway corePriced on request
- AI Gateway coreFree
- Cloudflare AI Gateway listingPriced on request
In their own words
Cloudflare AI Gateway
Cloudflare AI Gateway has no write-up on Specifiction yet; its figures are above.
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.