kitio.aiArize AI vs HoneyHive
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Arize AI starts at $50/mo and HoneyHive starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Arize Phoenix open source
- Agent tracing
- Online evaluations
- Drift monitoring
- Debugging copilot
- Agent trajectory tracing
- Online evaluators
- Datasets and experiments
- Custom roles
- Self-hosted option
| Feature | Arize AI | HoneyHive |
|---|---|---|
| Best for | AI observability and evaluation, plus the open-source Phoenix | Observability, evals and governance for enterprise AI agents |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $50/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Arize AI | HoneyHive |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Arize AI starts at $50/mo and HoneyHive starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
AX Free
Free
- 25k spans/month
- 1 GB ingestion/month
- 15 days retention
- Unlimited users
AX Pro
$50/mo
- 50k spans/month
- 10 GB ingestion/month
- 30 days retention
AX Enterprise
Contact sales
- Custom plans
2 plans
Developer
Free
- 10,000 events per month
- Up to 5 users
- Full observability and evaluations
- 30-day data retention
Enterprise
Contact sales
- Custom event volume
- Custom data retention
- Custom rate limits
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Arize AI
- Free open-source Phoenix
- Covers classic ML and LLMs
- Strong enterprise features
- AX costs rise with volume
- Two products can confuse
- Steeper setup than simple tools
HoneyHive
- Built for long-running agents
- Strong governance features
- Flexible deployment
- Enterprise pricing not public
- Smaller community
- More than small teams need
Which one should you choose?
Choose Arize AI if you want:
- Free open-source Phoenix
- Covers classic ML and LLMs
- Strong enterprise features
Watch out: ax costs rise with volume.
Choose HoneyHive if you want:
- Built for long-running agents
- Strong governance features
- Flexible deployment
Watch out: enterprise pricing not public.
Arize AI vs HoneyHive FAQ
What is the difference between Arize AI and HoneyHive?
Arize AI: AI observability and evaluation, plus the open-source Phoenix. HoneyHive: Observability, evals and governance for enterprise AI agents. Both are models & apis tools.
Is Arize AI or HoneyHive cheaper?
Arize AI starts at $50/mo and HoneyHive starts at See pricing page. Check both pricing pages for current plans.
Do Arize AI and HoneyHive have free plans?
Arize AI: Yes. HoneyHive: Yes.
Who makes Arize AI?
Arize AI is made by Arize AI, based in United States.
Who makes HoneyHive?
HoneyHive is made by HoneyHive, based in United States.
Which should I choose, Arize AI or HoneyHive?
Choose Arize AI if you value free open-source phoenix and covers classic ml and llms. Choose HoneyHive if you value built for long-running agents and strong governance features.