Neptune.aiExperiment tracker purpose-built for foundation model training.
vs
PrefectWorkflow orchestration for data, ML, and agents
Comparison · MLOps Platforms · weekly run Nov 2
Neptune.ai vs Prefect
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 0.7 for Prefect.
Choose Neptune.ai if…
- You want the brand AI engines rank higher (2.6 vs 0.7)
- AI answers describe it more positively (25% vs 0% positive)
- You need a self-hosted or on-premises option
- Collaboration-first dashboard for tracking experiments
Choose Prefect if…
- You need SOC 2 Type II or GDPR compliant coverage
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Neptune.ai | Prefect |
|---|---|---|
| Visibility score | 2.6% | 0.7% |
| Change vs last week | New | New |
| Rank in MLOps Platforms | #24 | #42 |
| Share of voice | 0.6% | 0.3% |
| Mentions this run | 4 | 2 |
| Positive in AI answers | 25% | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Neptune.ai 0pp · Prefect 0pp over 0 weekly runs.
Engine by engine
Neptune.ai leads on 1 of 3 engines
ChatGPT
AI Mode
Perplexity
Neptune.aiPrefect
Head to head in AI answers
0 engine answers name both brands
0Neptune.ai ranked higher
0Prefect ranked higher
Features, pricing & fit
| Dimension | Neptune.ai | Prefect |
|---|---|---|
| Pricing model | — | Per seat |
| Entry price | — | Free; paid from $100 per seat / mo |
| Free plan | — | Yes |
| Deployment | 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. | Prefect Cloud fully managed with Prefect Serverless compute, or hybrid with lightweight workers inside the customer's own VPC |
| Integrations | 25+ | — |
| Compliance | — | SOC 2 Type II, GDPR compliant |
| Support | — | Community forum, Email, Priority support with 30-minute response SLA on enterprise plans |
| Founded | 2017 | 2018 |
| Headquarters | Palo Alto, California, United States | Washington, DC |
| Employees | 51–200 | 51–200 |
| Funding | Series A · $18M raised | Series B · $47M raised |
| Best for | Teams training foundation models and other large-scale machine learning models that need to monitor GPT-scale training runs. | Python data, ML, and agent teams that want durable production workflows without hosting their own scheduler |
Plans side by side
Neptune.ai
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Neptune.ai
- Collaboration-first dashboard for tracking experiments
- Lightweight metadata store built for experiment tracking
- Discounts on annual plans
Prefect
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Neptune.ai vs Prefect”, https://slateindex.ai/compare/neptune-ai-vs-prefect, data of Nov 2, 2026. Licence: CC BY 4.0.