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 pricing ranges from $0 to $2499 per user/month in 2026. The typical cost is around $245/user/month across 9 popular tools. Top picks: Arize Phoenix (Free–$1K/user/mo), Braintrust (Free–$1K/user/mo), Helicone (Free–$2K/user/mo), and 6 more. 9 of 9 tools offer free tiers for small teams or limited use.
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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
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AI Observability & Evals Pricing FAQ
01 How much does AI Observability & Evals software cost?
AI Observability & Evals software ranges from $0 to $2499 per user/month. The median price across 7 tools is $245/user/month. 2 additional tools use free, usage-based, or custom pricing.
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.