AI Observability & Evals Software Pricing 2026
Compare pricing for 10 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 $308 per month across 6 tools. Others use usage-based or custom pricing. Top picks: Arize Phoenix (Free–$1K/month), Braintrust (Free–$1K/month), Helicone (Free–$2K/month), and 7 more. 10 of 10 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/month
The Context Company
Free–$400/monthNo matches
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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 $308 per month across 6 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 10 ai observability & evals products with verified tier data.
03 Is there free AI Observability & Evals software?
Yes, 10 of 10 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 10 ai observability & evals tools on CostBench. Key factors include per-user pricing, contract terms, and whether a free tier meets your needs.