Compare All AI Observability & Evals Software 2026
Side-by-side comparison of 6 ai observability & evals tools. Find the right fit for your team and budget.
Quick Answer
AI Observability & Evals software pricing ranges from Free to $2.5K per user per month in 2026. The category average is $278/user/month. 6 of 6 tools offer free tiers.
Quick Picks
Full Comparison Matrix
| Product | Starting Price | Popular Tier | Enterprise | Free Tier | Best For |
|---|---|---|---|---|---|
| Humanloop | Free /custom | Free /custom | Free /custom | Yes | Evaluating the platform |
| LangSmith | Free /seat/month + per trace | $39 /seat/month + per trace | $500 /seat/month + per trace | Yes | Individual developers getting started |
| Arize Phoenix | Free /month | $50 /month | $1K /month | Yes | Teams wanting self-hosted observability |
| Helicone | Free /month | $79 /month | $2K /month | Yes | Side projects and evaluation |
| Braintrust | Free /month | $249 /month | $1K /month | Yes | Solo developers and small evaluations |
| Langfuse | Free /month | $1.2K /month | $2.5K /month | Yes | Hobby projects and POCs |
Category Summary
6
Products
Free
Avg Starting
$278
Avg Popular
6
Free Tiers