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Compare MLflow vs TensorBoard vs Neptune

For when you want to monitor model training at scale

mlflow
vs
TensorBoard
vs
neptune-logo

Your experiments have grown to 100s of runs. Your team has grown too.
Sluggish performance at runtime and clumsy workarounds for collaboration
are slowing you down. It’s time you tried Neptune.

Feature-by-feature comparison

Take a deep dive into the differences between MLflow, TensorBoard and Neptune

Show differences only

Commercial offering

Commercial offering chevron
Open-source software or a managed cloud service?

Open-source

Open-source

Managed cloud service

Pricing model

Free

Free

User based and usage based (ingestion data points)

Guarantees around service levels (SLOs / SLAs)

Yes

Support 24Ă—7

No

No

Yes

User access management (SSO, ACL)

No

Yes

Security policy and compliance

No

No

Yes

General information

Deployment chevron
Cloud (SaaS)

No. However, it’s available on a managed server as part of the Databricks platform.

No

Yes

Self-hosted (on-prem, private cloud)

Yes

Yes

Yes

Installation in air-gapped environment

Yes

Yes

Yes

Setup chevron
Infrastructure requirements

Minimal setup—install mlflow (for local tracking). Remote tracking server requires additional infrastructure; see requirements here.

Basic logging can be done by having just TensorBoard installed. However, most advanced logging also requires TensorFlow to be installed.

Minimal setup—install the Python client and ensure internet access (for managed hosting). Self-hosting requires additional infrastructure; see requirements here.

Integration with the training process

A few lines of code via Python, REST, R, Java, or CLI.

A few lines of code via client library and CLI.

A few lines of code via the Neptune Python library.

Flexibility and accessibility chevron
Accessing model metadata

CLI/custom API, REST API, Python SDK, R SDK, Java SDK

Python SDK, R SDK (limited), Julia SDK (limited)

CLI/custom API and Python SDK

Supported operations

Search, Update (limited), Delete, Download

Search, Delete, Download

Search, Update, Delete, Download

Logging modes

Offline, Disabled/off, Asynchronous, Synchronous

Offline, Asynchronous

Offline, Disabled/Off, Asynchronous

Customizable metadata structure

No

No

Yes

Distributed training support

Yes

Yes

Pipelining support

Yes

No

Yes

Live monitoring

Yes

Yes

Yes

Webhooks and notifications

No

No

No

Resuming experiments

Yes

Limited

Yes

Forking runs

No

No

Yes

Capabilities

Log and display chevron
Parameters

Yes

No

Yes

Single values (metrics, losses, gradients, activations, etc.)

Yes

Yes

Yes

Series of values (metrics, losses, gradients, activations, etc.)

Yes

Yes

Yes

Series aggregates (min/max/avg/var/last)

Yes

No

Yes

Tags

Yes

Yes

Yes

Descriptions/comments

Yes

Limited

Yes

Rich format

Plots

Plots, Audio

Images, Plots, Video, Audio

Hardware consumption

CPU, GPU, Memory

No

Yes

Dataset

Limited

Limited

No

Code versions

Git (limited), Source

No

System information

Execution command

No

Console logs, Execution command

Environment config

pip requirements.txt, conda env.yml, Docker Dockerfile

No

No

Files (model binaries, CSV)

Yes

No

Yes

External file reference (S3 buckets)

Yes

No

No

Searching & filtering chevron
Searching on multiple criteria

Yes

Basic filtering in the UI

Yes

Query language and filtering options

Regex with limited query language

Custom attribute filtering (e.g. tags)

Yes

Yes

Yes

Support for regular expressions

No

Yes

Auto-update charts based on regex

No

No

Yes

Saving searches and filter history

No

No

Yes

Visualizations chevron
Custom (calculated) metrics

No

No

Yes

Forked charts

No

No

Yes

Histograms

No

Yes

Yes

Custom axes

Limited

Limited

Yes

Customizable global settings

Limited

Limited

Yes

Customizable legends

No

No

Yes

Comparing experiments chevron
Table format diff

No

No

Yes

Single-metric overlayed plots

Yes

Yes

Yes

Multi-metric overlayed plots

No

No

Yes

Grouping experiments by metadata

No

Yes

Scatter plot

No

Yes, through embeding projector

Yes

Parallel coordinates plot

Yes

Yes

No

Parameter importance plot

No

No

No

Rich format (side by side)

No

No

No

Data versions diff

No

No

No

Cross-project comparisons

N/A

N/A

Yes

Custom analysis chevron
Experiment table customization

No

Yes

Saving experiment table views

No

No

Yes

Dashboards combining different metadata types

No

No

Yes

Custom widgets and plugins

No

No

No

Persistent custom plots coloring

No

No

Yes

Collaboration and knowledge sharing chevron
Reports

No

No

Yes

Adding text in Reports

No

No

Yes

Commenting

Yes

No

Downloading charts

Yes

Yes

Yes

Sharing persistent UI links

No

Yes

User groups and ACL

No

Yes

This table was updated on 14 May 2025. Some information may be outdated.
Report outdated information here.
quote
When I’m doing hyperparameter optimization and I am running a lot of experiments TensorBoard gets very cluttered. It’s hard to organize and compare things. Neptune UI is very clear, it’s intuitive, and scales with many runs.
Ihab Bendidi Biomedical AI Researcher
quote
For now, I’m not using ML flow anymore ever since I switched to Neptune because I feel like Neptune is a super-set of what MLflow has to offer.
Kha Nguyen Senior Data Scientist @Zoined
quote
I’d say the advantage (of TensorBoard) is that it’s free and it works pretty well, but anytime an engineer wanted to show the team some training curve, they’d need to start the VM (Virtual Machine) containing the logs, or make their localhost port available, expose it to the internet, it was not very secure… When you end up having to start a VM just to visualize some logs, you realize there should be a better tool.
Nicolas Lopez Carranza DeepChain and BioAI Lead at InstaDeep
quote
We tried MLflow. But the problem is that they have no user management features, which messes up a lot of things.
AI/ML Product Manager Customer Service Automation Platform, USA

Your team doesn’t do “slow”
Neither does Neptune

Neptune is the tracking solution for teams frustrated with the limitations of MLflow and TensorBoard that block collaboration and training models at scale.

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