AI Data

Comet vs Lightdash

Two ai data tools, what each is better at, what each costs, and the one we would pick.

Comet logo

Comet

From $19/mo

LLM observability, evaluation and ML experiment tracking

Pros

  • ✓ A free tier exists for both Opik Cloud and MLOps, and the page says no credit card is required.
  • ✓ Opik has a self-hostable open-source version using the same codebase as the hosted product.
  • ✓ Opik Free Cloud includes up to 10 team members and 25k spans per month with 60-day retention.

Cons

  • ✗ Opik Free and Pro Cloud both cap span data retention at 60 days; longer retention costs $29 per 100k spans.
  • ✗ Opik Pro Cloud is limited to 50 team members and 100k spans per month.
Lightdash logo

Lightdash

From $3000/mo

AI-native BI platform built on your dbt project

Pros

  • ✓ Unlimited users on all plans, including the free self-hosted open source version.
  • ✓ Native dbt integration and open semantic layer.
  • ✓ 21-day free trial for Cloud Pro with no payment details required.

Cons

  • ✗ Requires a dbt project to use.
  • ✗ Cloud Pro starts at $3,000 per month.
CometLightdash
From$19/mo$3000/mo
Free TierYes ✓Yes ✓
Our RatingNot ratedNot rated
Pricingfreemiumfreemium

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Summary

We have not used both of these yet, so there is no score to pick a winner with. What they cost, who they suit and what each one does is in the table above.

Some links here earn us a commission. We earn it whether we praised the tool or not, which is why the verdict does not move for it.