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Software Development · head to head

Baseten vs Langwatch

Baseten logo

Baseten

Software Development

Inference is everything

From
Free
Rated
-
Full reviewWebsite
Langwatch logo

Langwatch

Machine Learning

LLM engineering platform for testing and evaluating AI agents in production

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Baseten pro and Enterprise pricing not published; requires contacting sales; Langwatch free plan limited to 50k events per month, restricting larger deployments

Where they differ

Only the attributes on which Baseten and Langwatch actually diverge.

Attributes where Baseten and Langwatch differ
AttributeBasetenLangwatch
Pricing modelusage-basedTiered subscription with usage-based overage charges
PlatformsWebWeb, Docker, Kubernetes
CategorySoftware DevelopmentMachine Learning

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Baseten

Nothing recorded that Langwatch does not also cover.

Only in Langwatch

  • Agent simulation testing
  • LLM evaluation
  • OpenTelemetry tracing
  • Langy AI Engineer
  • Governance controls
  • Multiple deployment options
  • Framework support

What people use each for

The jobs each tool is most often brought in to do.

Baseten

  • Custom model deploymentnot Langwatch
  • Fine-tuned LLM hostingnot Langwatch
  • Inference API scalingnot Langwatch

Langwatch

  • Continuous testing of AI agents before production deploymentnot Baseten
  • Automated test creation from product requirementsnot Baseten
  • LLM response quality evaluation and scoringnot Baseten
  • Production agent monitoring and cost trackingnot Baseten
  • Governance and access control for AI systemsnot Baseten

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Baseten

  • Pro and Enterprise pricing not published; requires contacting sales
  • Pricing varies significantly by compute type and model

Langwatch

  • Free plan limited to 50k events per month, restricting larger deployments
  • Pricing in EUR may complicate budgeting for US-based teams
  • Usage-based overage model can create unpredictable costs
  • Self-hosted option requires DevOps expertise

Pricing, plan by plan

Baseten

Free
  • BasicFree
    • Pay-as-you-go deployments
    • Dedicated model APIs
    • SOC 2 Type II and HIPAA compliance
  • Pro$null/month
    • Priority GPU access
    • Unlimited autoscaling
    • Volume discounts available
  • Enterprise$null/month
    • Self-hosted options
    • Custom SLAs
    • Data residency control

Langwatch

Free
  • DeveloperFree
    • 50k events per month
    • 14-day data access
    • 2 users
  • Growth$29/month
    • 200k events per month included
    • 5 EUR per 100k additional events
    • 30-day data retention
  • Enterprise$undefined/custom
    • Custom event limits
    • Hybrid, self-hosted or on-premises deployment
    • Custom SSO and RBAC

Which should you pick?

Choose Baseten if

  • You want to start without paying.
Baseten review

Choose Langwatch if

  • You need agent simulation testing.
  • You want to start without paying.
  • You work on Web, Docker, Kubernetes.
  • You also want llm evaluation.
Langwatch review

Questions people ask

Is Baseten or Langwatch better?
Neither clearly leads. Baseten starts at Free and Langwatch at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Baseten or Langwatch?
Baseten starts at Free and Langwatch at Free.
Does Baseten or Langwatch run on more platforms?
Baseten runs on Web. Langwatch runs on Web, Docker, Kubernetes.
Can I use Baseten for free?
Both have a free tier, so you can try either at no cost before committing.
What is Baseten best used for?
Baseten is most often used for custom model deployment, fine-tuned llm hosting, inference api scaling. Of those, custom model deployment and fine-tuned llm hosting are not what Langwatch is typically brought in for.
What can Baseten do that Langwatch cannot?
Langwatch covers Agent simulation testing, LLM evaluation, OpenTelemetry tracing, Langy AI Engineer.

Answered from the vendors’ own pages

Baseten: Does Baseten have a free tier?

Yes, Baseten's Basic plan is free with a pay-as-you-go model for dedicated deployments and model APIs.

Source
Langwatch: Is there a permanent free tier?

Yes, Langwatch's Developer plan is free forever with 50k events per month, 14-day data access, 2 users, and no credit card required. It is specifically designed for individual developers prototyping AI applications.

Source
Baseten: How are GPU instances priced on Baseten?

GPU instances are priced per minute: T4 at $0.01052/min, H100 at $0.10833/min, and B200 at $0.16633/min. CPU instances range from $0.00058 to $0.01382 per minute.

Source
Langwatch: What is Langy and how does it save time?

Langy is an AI-powered tool that automates test creation. It converts product requirements into test scenarios, runs simulations, scores results, and generates pull requests with fixes in a median of 14 minutes.

Source
Baseten: What are Model API costs on Baseten?

Model API pricing varies by model: DeepSeek V4 Flash costs $0.13 per million input tokens and $0.028 per million output tokens; GLM-5.3-Flash costs $0.15 and $0.03 respectively.

Source
Langwatch: What frameworks does Langwatch support?

Langwatch works with LangGraph, LangChain, CrewAI, OpenAI Agents, AWS Bedrock, Azure OpenAI, Vertex AI, and other major LLM frameworks and platforms.

Source
Baseten: Does Baseten charge for idle compute time?

No, Baseten does not charge for idle time; billing only covers active compute usage on deployments.

Source
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