Helicone vs Arize Phoenix
Quick Verdict
Helicone wins overall
Helicone edges ahead with overall stronger positioning. Choose Arize Phoenix if you need AI teams needing visual observability and RAG evaluation.
✍️ Writing
Helicone
💻 Coding
Helicone
👥 Teams
Helicone
💰 Budget
Helicone
🏢 Enterprise
Helicone
Choose Arize Phoenix if…
AI teams needing visual observability and RAG evaluation
Visit Arize Phoenix →
Overview
At a Glance
| Helicone 🏆 | Arize Phoenix | |
|---|---|---|
| Category | AI Agents | AI Agents |
| Pricing | freemium | freemium |
| Starting Price | Freemium | Freemium |
| Best For | Teams wanting quick visibility into LLM costs and performance | AI teams needing visual observability and RAG evaluation |
| Features Listed | 6 | 6 |
Features
Feature Comparison
| Helicone 🏆 | Arize Phoenix |
|---|---|
| ✓ LLM API proxy logging | ✓ Interactive trace visualization |
| ✓ Cost and latency analytics | ✓ RAG evaluation tools |
| ✓ Request and response storage | ✓ Hallucination detection |
| ✓ Custom metadata tagging | ✓ LLM eval metrics |
| ✓ Prompt management | ✓ Span and trace analysis |
| ✓ Caching to reduce costs | ✓ Embedding visualization |
Pricing
Pricing Comparison
Helicone
freemium
Best Value
Paid
Free up to 100,000 requests/month. Pro starts at $20/month for up to 2M requests.
Arize Phoenix
freemium
Paid
Open-source self-hosted is free. Arize AX cloud platform with custom pricing.
Pros & Cons
Strengths & Weaknesses
Helicone 🏆
Pros
- +Single line integration
- +Works with any LLM provider
- +Great cost visibility
- +Open-source option available
Cons
- −Proxy adds small latency
- −Storage limits on free tier
- −Less advanced eval tools vs LangSmith
Arize Phoenix
Pros
- +Great visual trace exploration
- +Strong RAG evaluation
- +Open-source and self-hosted
- +Active development
Cons
- −More setup than SaaS options
- −Advanced features require Arize platform
- −Steeper learning curve
Decision Guide
Winner by Buyer Type
| Buyer Type | Best Pick | Reason |
|---|---|---|
| Solo Developer | Helicone | Dev-friendly features + low cost |
| Marketing Team | Helicone | Content creation & collaboration |
| Enterprise | Helicone | Scalability & admin controls |
| Budget-Conscious | Helicone | Best value at lowest price |
| Content Creators | Helicone | Output quality & creative tools |
| Technical Teams | Helicone | API access & developer features |
Bottom Line
Final Recommendation
🏆 Overall Winner
Helicone
Helicone comes out ahead in this comparison. At Freemium, it offers single line integration. If Arize Phoenix fits your workflow better based on the use-case breakdown above, go with that — but for most users, Helicone is the safer default choice.
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