Quick Answer
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PromptLayer costs Free to $299 per month as of May 2026, with 3 plans available including a free tier. Plans: Free (free), Pro at $50/month, and Enterprise at $299/month. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

PromptLayer offers 3 pricing tiers: Free, Pro, Enterprise. A free plan is available. Paid plans include Pro at $50/month, Enterprise at $299/month. The Pro plan is growing teams.

Compared to other ai evaluation & guardrails software, PromptLayer is positioned at the mid-market price point.

How much does PromptLayer cost?

PromptLayer offers a free plan with 2 paid tiers from $50 to $299/month. Plans include Free (free), Pro at $50/month, Enterprise at $299/month.

PromptLayer Pricing Overview

PromptLayer has 3 pricing plans, including a free tier. Paid plans range from $0 to $299/month. The Free plan is free and is best for evaluation. The Pro plan costs $50/month, best for growing teams. The Enterprise plan costs $299/month, best for scaled production.

This pricing was last verified in April 23, 2026.

How PromptLayer Pricing Compares

Compare PromptLayer pricing against top alternatives in AI Evaluation & Guardrails.

Live calculator

What does PromptLayer actually cost you?

Drag the slider. Pick a tier. Watch your projected spend update live.

Tier
Billing
Your projected cost$1.3Kper month · $50/seat × 25 seats
Year 1 license$15K12 months at this rate
At a glance

List price by tier (annualized, per seat)

Per-seat list price across PromptLayer's plans, annualized. Custom-priced tiers show a hatched bar.

FreeCustom
Pro$600/yr
Enterprise$3.6K/yr

All PromptLayer Plans & Pricing

Plan Monthly Annual Best For
View all features by plan (compare side-by-side)

Free

  • 5,000 requests/month
  • 1 user
  • 7-day log retention

Pro

  • 100K requests/month
  • 5 users
  • 30-day log retention
  • Prompt templates + A/B tests

Enterprise

  • 1M requests/month
  • Unlimited users
  • 90-day log retention
  • SSO
Compare PromptLayer with alternativesAdjust seats, lock a tier, add up to 2 more products side-by-side. Shareable URL.

Compare PromptLayer vs Alternatives

Before committing to PromptLayer, compare pricing with these 3 alternatives in the same category.

All PromptLayer alternatives & migration guides

How PromptLayer Pricing Compares

Software Starting Price Top Price
PromptLayer Free $299/month
DeepEval (Confident AI) Free $49.99/month
Guardrails AI Free $500/month
Lakera Custom Custom
LangWatch Free $34/month

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