AI Observability & Evals Software Pricing 2026
Compare pricing for 9 ai observability & evals tools. Find the right software for your budget.
AI Observability & Evals software billed monthly typically runs $0 to $2499 per month in 2026, with a typical cost around $330 per month across 5 tools. Others use usage-based or custom pricing. Top picks: Arize Phoenix (Free–$1K/month), Braintrust (Free–$1K/month), Helicone (Free–$2K/month), and 6 more. 9 of 9 tools offer free tiers for small teams or limited use.
All AI Observability & Evals Tools
Compare all side-by-side →
Arize Phoenix
Free–$1K/month
Braintrust
Free–$1K/month
Helicone
Free–$2K/month
Humanloop
Custom pricing
Langfuse
Free–$2.5K/month
LangSmith
Free–$500/seat/month + per trace
Weights & Biases (evals)
Free–$25/user/month
Traceloop
Free
Datadog LLM Observability
Free–$41/monthNo matches
Try clearing the active filters or searching for a different name.
AI Observability & Evals Comparisons
Cost Analysis Tools
AI Observability & Evals Pricing FAQ
01 How much does AI Observability & Evals software cost?
Most ai observability & evals tools are billed monthly and typically run $0 to $2499 per month (premium tiers go higher), with a median of $330 per month across 5 tools. Other tools in this category use usage-based or custom pricing — each profile shows its own verified pricing model.
02 What are the most popular AI Observability & Evals tools?
Popular AI Observability & Evals tools include Arize Phoenix ($0–$1000/month), Braintrust ($0–$1000/month), Helicone ($0–$2000/month). CostBench tracks pricing for 9 ai observability & evals products with verified tier data.
03 Is there free AI Observability & Evals software?
Yes, 9 of 9 ai observability & evals tools offer free tiers. Options with free plans include Arize Phoenix, Braintrust, Helicone.
04 How do I choose the right AI Observability & Evals software?
Compare pricing tiers, included features, and hidden costs across 9 ai observability & evals tools on CostBench. Key factors include per-user pricing, contract terms, and whether a free tier meets your needs.