PromptLayer vs TrueFoundry AI Gateway
No clear leader: PromptLayer (63.3) and TrueFoundry AI Gateway (62.5) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for llm gateways. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
PromptLayer
A platform that maintains logs of prompts and API requests, enabling debugging and replay of previous completions. Provides version tracking, testing, and monitoring with integrated tracing and evaluation features.
TrueFoundry AI Gateway
A platform providing a central gateway for connecting various AI models and MCP services with features for cost management, security, and operational visibility across your infrastructure
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
PromptLayer
Free tier available. Pro starts at $49/month, Team at $500/month, both with usage-based billing ($0.002–$0.003 per transaction). Enterprise custom pricing.
- FreeFree
- 5 Users
- 2.5k/month Requests
- 1 Workspace
- 250/month Eval Cell Executions
- 10MB max per Dataset
- +1 more
- Pro$49/month plus $0.003/transaction
- Unlimited Playgrounds
- Unlimited Workspaces
- 150MB max per Dataset
- Webhooks Included
- Dedicated Support
- Team$500/month plus $0.002/transaction
- 25 Users
- 100k+/month Requests
- 7.5k+/month Eval Cell Executions
- 1GB max per Dataset
- Webhooks Included
- +2 more
- EnterpriseContact sales
- Custom limits on everything
- Role Based Access Controls
- Deployment Approvals
- HIPAA with BAA
- Flexible Hosting Options
- +2 more
TrueFoundry AI Gateway
Free tier available. Pro starts at $25/user/month with 20K requests per user included and $20 per 100K overage. Enterprise custom pricing.
- DeveloperFree
- Up to 3 users
- 10K requests & tool calls per user per month
- LLM & MCP Gateway
- Prompts, skills & agent registry
- 7-day log retention
- +1 more
- Pro$25/user/month with 7 days free trial, includes 20K requests per user, overage $20 per 100K
- Unlimited users
- 20K requests & tool calls per user per month
- Built-in guardrails
- Budget limiting
- 30-day log retention
- +2 more
- EnterpriseContact sales
- Custom log retention & audit exports
- External IdP mapping
- Third-party guardrails & advanced observability
- VPC, on-prem & data residency
- Priority support, SLA & onboarding
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- OpenAI
- Anthropic
- OpenTelemetry
PromptLayer
- Pydantic AI
- Google GenAI
- AWS Bedrock
- Azure OpenAI
- Vertex AI
- Gemini API
TrueFoundry AI Gateway
- Grafana
- Datadog
- Prometheus
- Google Gemini
- Daytona
- Azure
- AWS
- Bedrock
PromptLayer or TrueFoundry AI Gateway: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.