Design, deploy, and optimize LLM apps with Klu.

Collaborate on prompts, evaluate results, and ship reliable AI experiences with shared tooling that keeps teams aligned.

Trusted by teams building production LLM apps

Model providers

Everything you need to iterate with confidence.

Move from prompt drafts to production apps with experiments, evaluations, and observability that stay in sync with your team.

Studio for collaborative prompt design

Build, iterate, and version prompts in a shared workspace with built in evaluation workflows.

Observability across every model and app

Track performance, cost, and drift in one place while keeping every experiment connected to production data.

Security and control for enterprise AI teams.

Deploy with confidence using private infrastructure, governance controls, and a support model built for production workloads.

Private infrastructure

Run Klu in your VPC with isolated data planes and custom deployment controls.

Governance and audit

Permissioned workspaces, audit trails, and evaluation policies keep teams compliant.

Dedicated support

Partner with Klu engineers to launch, monitor, and scale mission critical LLM apps.

Ship faster with shared evaluations.

Align stakeholders on measurable quality with experiments and dashboards that update in real time.

3x

Faster iteration cycles with shared evaluation sets.

50+

Model and tool integrations across major providers.

99.9%

Uptime for customer facing AI workflows.

24/7

Monitoring across prompts, chats, and workflows.

Collaborate across product, engineering, and research teams with shared prompts, versioning, and evaluations that tie directly to production performance. Klu makes it easy to compare models, track costs, and understand why quality changes over time.

Loved by teams shipping AI at scale.

From early experimentation to production rollouts, teams rely on Klu to keep quality high and iteration fast.

Klu gave our prompt engineers a shared source of truth and cut our evaluation time in half.

Angela Fisher

Head of AI, Productlane

We finally have visibility into model performance without stitching together five different tools.

Jeffrey Webb

ML Platform Lead, Colab Cohorts

Klu helped the Zavvy team ship changes quickly while keeping leadership confident in the results.

Leslie Alexander

Product Director, Zavvy (Deel)

Plans that scale with your AI roadmap.

Start free for experimentation, then upgrade as your team and usage grow.

Starter

Freeforever

Best for solo builders exploring prompt workflows.

• Prompt workspace with versioning
• Shared evaluation sets
• Community support

Team

$99 per seat

For product teams shipping LLM apps every week.

• Collaboration and approvals
• Observability dashboards
• Usage based evaluations

Enterprise

Custom

For regulated teams needing custom deployments.

• Private cloud deployment
• Advanced governance and SSO
• Dedicated success team

Common questions from AI teams.

Here are the answers we share most when teams evaluate Klu for their LLM applications.

Does Klu work with multiple model providers?
Yes. Connect OpenAI, Anthropic, Google, and other providers in a single workspace.

How does evaluation compare to manual reviews?
Combine automated metrics with human feedback to measure quality without sacrificing speed.

Can we self host Klu?
Enterprise plans include private deployments and VPC options.

Where should we start?
Start in Studio to design prompts, then connect Observe to track performance in production.