Compare · llm & agent observability
Arize vs Helicone pricing
At 1M traces/month: Arize Contact sales, Helicone $243.
| Arize | Helicone | |
|---|---|---|
| Free tier | AX Free: 25K spans/month, 1 GB ingestion, 15-day retention. Phoenix OSS is free to self-host. | Hobby: 10K requests/month, 1 GB storage, 1 seat, 7-day retention. |
| Billing unit (LLM & agent observability) | spans | requests |
| First paid plan | AX Pro: $50/mo | Pro: $79/mo |
| Pricing data | Partially published | Published pricing |
| Company status | Acquired | Maintenance mode |
| Open source / self-host | Yes / Yes | Yes / Yes |
| Last checked | 2026-10-19 | 2026-10-19 |
LLM & agent observability: estimated monthly cost
| traces / month | Arize | Helicone |
|---|---|---|
| 100K | Contact sales | $133 Pro |
| 1M | Contact sales | $243 Pro |
| 10M | Contact sales | $615 Pro |
Estimate, check vendor page. Figures are list prices computed from publicly posted pricing on the "last checked" date. They exclude taxes, discounts, add-ons, seats and contract terms unless stated. Always confirm on the vendor's own pricing page.
Plans side by side
| Arize | |
|---|---|
| AX Free | $0 25K spans, 1 GB |
| AX Pro | $50/mo 50K spans, 10 GB, 30-day retention |
| AX Enterprise | Contact sales |
| Helicone | |
|---|---|
| Hobby | Free |
| Pro | $79/mo 10K requests free + usage-based |
| Team | $799/mo |
| Enterprise | Contact sales |
Recent news
Sources
- Arize pricing page retrieved 2026-10-19
- Helicone pricing page retrieved 2026-10-19
- Helicone pricing calculator JS retrieved 2026-10-19