ArizeThe agent observability and evaluation platform.
vs
Neptune.aiExperiment tracker purpose-built for foundation model training.
Comparison · MLOps Platforms · weekly run Nov 2
Arize vs Neptune.ai
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Neptune.ai is the stronger AI pick in MLOps Platforms: it has a visibility score of 2.6 versus 1.5 for Arize.
Choose Arize if…
- You need more native integrations (40+ vs 25+)
- You need SOC 2 Type II or ISO 27001 or PCI DSS or HIPAA or GDPR coverage
Choose Neptune.ai if…
- You want the brand AI engines rank higher (2.6 vs 1.5)
- AI answers describe it more positively (25% vs 20% positive)
- Collaboration-first dashboard for tracking experiments
- Lightweight metadata store built for experiment tracking
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Arize | Neptune.ai |
|---|---|---|
| Visibility score | 1.5% | 2.6% |
| Change vs last week | New | New |
| Rank in MLOps Platforms | #34 | #24 |
| Share of voice | 0.7% | 0.6% |
| Mentions this run | 5 | 4 |
| Positive in AI answers | 20% | 25% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Arize 0pp · Neptune.ai 0pp over 0 weekly runs.
Engine by engine
Neptune.ai leads on 1 of 3 engines
ChatGPT
AI Mode
Perplexity
ArizeNeptune.ai
Head to head in AI answers
0 engine answers name both brands
0Arize ranked higher
0Neptune.ai ranked higher
Features, pricing & fit
| Dimension | Arize | Neptune.ai |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | Free; paid from $50 / mo | — |
| Free plan | Yes | — |
| Deployment | SaaS, with self-hosted deployment on the Enterprise plan; Phoenix runs locally or self-hosted. | Hosted service by default, with a self-hosted option on-premises or on AWS, Google Cloud or Azure as a Kubernetes cluster, deployed as microservices via a Helm chart. |
| Integrations | 40+ | 25+ |
| Compliance | SOC 2 Type II, ISO 27001, PCI DSS, HIPAA, GDPR | — |
| Support | Community, Email, Dedicated support on Enterprise | — |
| Founded | 2020 | 2017 |
| Headquarters | — | Palo Alto, California, United States |
| Employees | 51–200 | 51–200 |
| Funding | Series B-1 extension · $131M raised | Series A · $18M raised |
| Best for | AI engineering teams building and running production AI agents and LLM applications who need observability and evaluations. | Teams training foundation models and other large-scale machine learning models that need to monitor GPT-scale training runs. |
Plans side by side
Neptune.ai
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Arize
Profile in progress.
Neptune.ai
- Collaboration-first dashboard for tracking experiments
- Lightweight metadata store built for experiment tracking
- Discounts on annual plans
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Arize vs Neptune.ai”, https://slateindex.ai/compare/arize-vs-neptune-ai, data of Nov 2, 2026. Licence: CC BY 4.0.