AI Tools · head to head
PromptLayer vs Galileo
PromptLayer
AI Tools
Collaboration platform for prompt management, evaluation, and observability
- From
- Free
- Rated
- -
Galileo
AI Tools
Evaluation and observability platform for GenAI applications and agents
- From
- Free
- Rated
- -
The short version
- Each has a real cost: PromptLayer the free plan is capped at only 2,500 requests per month, quite limited for active production use.; Galileo the free plan is limited to 5,000 traces per month, which is quickly outgrown by production workloads.
- They diverge on capability: PromptLayer covers Visual prompt management, Galileo covers Pre-built evaluations.
Where they differ
Only the attributes on which PromptLayer and Galileo actually diverge.
| Attribute | PromptLayer | Galileo |
|---|
Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), platforms (web, api), user rating (Not yet rated), category (AI Tools).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in PromptLayer
- Visual prompt management
- Agent observability
- Evaluations
- Version control
- Cost and latency monitoring
- Agent workflow tracing
Only in Galileo
- Pre-built evaluations
- Ground truth capture
- Luna models
- Agent behavior analysis
- Production guardrails
- Flexible deployment
What people use each for
The jobs each tool is most often brought in to do.
PromptLayer
- Versioning and deploying prompts without code redeploysnot Galileo
- Running evaluations with human review before production releasenot Galileo
- Tracing multi-step agent workflows for debuggingnot Galileo
- Monitoring LLM cost and latency by featurenot Galileo
Galileo
- Evaluating RAG and agent applications before production releasenot PromptLayer
- Monitoring live GenAI applications for failures and driftnot PromptLayer
- Applying real-time guardrails without custom integration worknot PromptLayer
- Reducing evaluation costs using distilled Luna judge modelsnot PromptLayer
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
PromptLayer
- The free plan is capped at only 2,500 requests per month, quite limited for active production use.
- The Team plan jumps to $500/month, a large step up from the $49/month Pro plan.
- Overage transaction fees apply on top of subscription costs, which can make total spend less predictable.
- Enterprise-grade features like HIPAA BAAs and custom deployment require contacting sales.
Galileo
- The free plan is limited to 5,000 traces per month, which is quickly outgrown by production workloads.
- Real-time guardrails and unlimited trace capacity are reserved for the custom-priced Enterprise tier.
- Pro plan pricing scales with trace volume, so costs can grow unpredictably as usage increases.
- On-premises deployment requires an Enterprise contract rather than being available self-serve.
Pricing, plan by plan
PromptLayer
Free- FreeFree
- 5 users
- 2,500 requests/month
- 1 workspace
- Pro$49/month
- Unlimited playgrounds and workspaces
- 150MB datasets
- Pay-as-you-go overage at $0.003/transaction
- Team$500/month
- 25 users
- 100k+ monthly requests
- Webhooks
- Enterprise$undefined/mo
- Custom limits
- Role-based access controls
- HIPAA with BAA
Galileo
Free- FreeFree
- 5,000 traces/month
- Unlimited users
- Unlimited custom evaluations
- Pro$100/month
- 50,000 traces/month
- Standard role-based access control
- Advanced analytics and insights
- Enterprise$undefined/mo
- Unlimited trace capacity
- Custom rate limits
- Hosted, VPC, or on-prem deployment
Which should you pick?
Choose PromptLayer if
- You need visual prompt management.
- You want to start without paying.
- You work on web, api.
- You also want agent observability.
Choose Galileo if
- You need pre-built evaluations.
- You want to start without paying.
- You work on web, api.
- You also want ground truth capture.
Questions people ask
- Is PromptLayer or Galileo better?
- Neither clearly leads. PromptLayer starts at Free and Galileo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, PromptLayer or Galileo?
- PromptLayer starts at Free and Galileo at Free.
- Does PromptLayer or Galileo run on more platforms?
- Both run on web, api, so platform support will not decide this one for you.
- Can I use PromptLayer for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is PromptLayer best used for?
- PromptLayer is most often used for versioning and deploying prompts without code redeploys, running evaluations with human review before production release, tracing multi-step agent workflows for debugging, monitoring llm cost and latency by feature. Of those, versioning and deploying prompts without code redeploys and running evaluations with human review before production release are not what Galileo is typically brought in for.
- What can PromptLayer do that Galileo cannot?
- PromptLayer covers Visual prompt management, Agent observability, Evaluations, Version control. Galileo covers Pre-built evaluations, Ground truth capture, Luna models, Agent behavior analysis.
Answered from the vendors’ own pages
PromptLayer: What does PromptLayer cost?
PromptLayer has a free plan, a Pro plan at $49/month, a Team plan at $500/month, and custom Enterprise pricing, with additional usage billed per transaction beyond plan limits.
SourceGalileo: What does Galileo cost?
Galileo offers a free plan, a Pro plan at $100/month billed yearly (with a 33% annual discount), and a custom-priced Enterprise plan for unlimited trace capacity.
SourcePromptLayer: Is there a free plan, and what are its limits?
The Free plan includes 5 users, 2,500 requests per month, 1 workspace, 250 monthly eval cell executions, and datasets up to 10MB.
SourceGalileo: Is there a free plan, and what are its limits?
The Free plan includes 5,000 traces per month with unlimited users and unlimited custom evaluations, aimed at developers and small teams experimenting with GenAI.
SourcePromptLayer: How is usage metered beyond the plan limits?
Additional usage is charged per transaction for requests, agent runs, and evaluation cell runs, at $0.003/transaction on Pro and $0.002/transaction on Team.
SourceGalileo: How is usage metered?
Galileo's pricing scales based on the number of traces processed each month, with Free capped at 5,000, Pro at 50,000, and Enterprise offering unlimited trace capacity.
SourceRelated pages
More on PromptLayer
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