Cloudflare AI Gateway vs LangSmith

Detailed side-by-side comparison to help you choose the right tool

Cloudflare AI Gateway

🔴Developer

App Deployment

Cloudflare AI Gateway accelerates AI applications with intelligent caching, automates cost optimization through rate limiting, and analyzes LLM usage across OpenAI, Anthropic, Google providers. Reduce AI costs 60%+ with response caching. Free tier available.

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Starting Price

Free
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LangSmith

🔴Developer

AI Observability

LangSmith is LangChain's commercial observability, evaluation and prompt management platform for LLM apps and agents in production.

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Starting Price

Free
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Feature Comparison

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FeatureCloudflare AI GatewayLangSmith
CategoryApp DeploymentAI Observability
Pricing Plans6 tiers59 tiers
Starting PriceFreeFree
Key Features
  • • LLM Request Routing
  • • Response Caching
  • • Rate Limiting
  • • Tracing for any LLM stack via Python/TypeScript SDKs or OpenTelemetry
  • • LLM-as-judge, code-based and pairwise evaluations
  • • Versioned prompts with production A/B traffic splits

💡 Our Take

Choose Cloudflare AI Gateway for production traffic control: caching, rate limiting, failover, and edge-network performance across 20+ providers. Choose LangSmith if your priority is prompt engineering, evaluations, dataset-driven testing, and deep LangChain/LangGraph trace debugging — LangSmith is a developer-loop tool, AI Gateway is an ops/infrastructure tool, and many teams run both.

Cloudflare AI Gateway - Pros & Cons

Pros

  • ✓Universal proxy supporting all major AI providers
  • ✓Powerful caching reduces costs and improves performance
  • ✓Comprehensive analytics and observability features
  • ✓Easy integration requiring only endpoint URL changes
  • ✓Free tier includes unlimited requests with basic features

Cons

  • ✗Introduces an additional infrastructure dependency
  • ✗Advanced features require paid plans for high-volume usage
  • ✗Configuration can become complex for sophisticated routing policies
  • ✗Limited to Cloudflare's global network infrastructure

LangSmith - Pros & Cons

Pros

  • ✓Best-in-class integration if you already use LangChain or LangGraph.
  • ✓Eval suites are practical enough to actually gate releases on, not just dashboards.
  • ✓Self-hosted Enterprise tier covers SOC 2 and regulated environments.

Cons

  • ✗Per-trace pricing on Plus surprises teams that scale production traffic quickly.
  • ✗Non-LangChain stacks work but trade ergonomic polish for SDK overhead.
  • ✗Some eval features require additional LLM spend on top of the platform fee.

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🔒 Security & Compliance Comparison

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Security FeatureCloudflare AI GatewayLangSmith
SOC2✅ Yes✅ Yes
GDPR✅ Yes✅ Yes
HIPAA❌ No—
SSO✅ Yes✅ Yes
Self-Hosted—🔀 Hybrid
On-Prem❌ No✅ Yes
RBAC✅ Yes✅ Yes
Audit Log✅ Yes✅ Yes
Open Source❌ No❌ No
API Key Auth✅ Yes✅ Yes
Encryption at Rest✅ Yes✅ Yes
Encryption in Transit✅ Yes✅ Yes
Data ResidencyGLOBALUS, EU
Data Retentionconfigurableconfigurable
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Read the full reviews to make an informed decision

Review Cloudflare AI GatewayReview LangSmith