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Firefly vs OpenNebula comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Firefly
Ranking in Cloud Management
29th
Average Rating
10.0
Reviews Sentiment
6.2
Number of Reviews
1
Ranking in other categories
No ranking in other categories
OpenNebula
Ranking in Cloud Management
9th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2026, in the Cloud Management category, the mindshare of Firefly is 0.3%, up from 0.1% compared to the previous year. The mindshare of OpenNebula is 2.5%, down from 8.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Management Mindshare Distribution
ProductMindshare (%)
OpenNebula2.5%
Firefly0.3%
Other97.2%
Cloud Management
 

Featured Reviews

MR
Senior Software Consultant at a hospitality company with 10,001+ employees
Design workflows have been transformed and now enable rapid ad visuals and campaign launches
Firefly offers several best features in my opinion. We have the TTS feature and TTV feature. Additionally, suppose I have a single image from the creative designer and I want to generate different variations or different sizes of that image that will get adapted mostly on Google Ads. For example, I want to generate different renditions of that same image in different resolutions. I can quickly go to Firefly and from a single image generate different multiple images in different renditions. Firefly also helps us expand images. For example, I have a small image that is a portrait and I want to convert that as a full image or a hero image, which fits on a wide screen. Firefly helps us generate the images. It will not be stretching or squeezing your image. Instead, Firefly takes the context from your image and generates the next object which could appear. For example, if I am standing on a beach, it will generate the beach. It will generate a few people, it will generate some pictures of the sea, maybe some coconut trees. Firefly has positively impacted my organization a lot. I can say it is helping us reduce the effort and cost, saving the cost. For example, I have to create one image for our social media post. For that, we have to request our creative team, and then a creative designer will work on that idea and take one day or two days to get the design complete. After that, it comes to the review. With the help of Firefly, we can quickly generate the images and get them reviewed. Our go-to-market becomes easy. Within two hours or three hours, we can complete this whole process: generation, review, and all, and go to the market instantly. Additionally, if we have one image available and I want to quickly launch a Google Ad campaign that requires different renditions of the image, I can quickly use Firefly and generate different renditions of the image using the single image. So, it also reduces the dependency which we had earlier with the creative designers and the creative team.
FOURES Jean-Philippe - PeerSpot reviewer
Products Manager at a tech services company with 501-1,000 employees
Reliable, simple to manage, and offers great technical support
The support of VXLAN fits with our network management. Thanks to this we can propose mixed solutions using virtual resources on OpenNebula and bare metal servers hosted in our facilities linked to each other on the sale network. This use case is very useful when some applications need bare metal power (Kubernetes workers, huge databases, AI models computations, et cetera). The cluster management is very useful for splitting our different clusters (mutual vs dedicated). We can manage deployments and capacity planning without pain. The API is also really simple and it helped us to develop the Terraform provider to manage OpenNebula like any other cloud infrastructure.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Firefly saves one employee, it saves 5 million annually, and we are currently improving 40% of our go-to-market time while reducing cost by 30% and increasing revenue by approximately 20%."
"OpenNebula freed my customer from doing the maintenance operations of the servers because now that can be done by his clients."
"It has enabled us to decrease the optics by around 55 to 60%."
"OpenNebula has very good integration with SAP Storage, is easy to use, has a good UI, and is very scalable."
"I'll definitely recommend OpenNebula because it's an open-source solution that's effortless to set up, and the total cost of ownership is low."
"OpenNebula is lightweight, stable, and easy to customize."
"The live migration feature has been great and is something we use very often."
"The most valuable feature of OpenNebula is that it scales very well."
"OpenNebula has very good integration with SAP Storage."
 

Cons

"If I talk about the cost, the cost is a little high."
"The protocol for clusterization is rough and doesn't work well."
"The storage feature that they have is a bit confusing."
"There are no payment gateways in OpenNebula."
"Most of the competitors are offering some sort of billing software to transform their installation to work as a small-sized public cloud, but those offerings from OpenNebula are still missing."
"They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work."
"The front-facing API can be improved to support lots of requests when the platform is huge with lots of virtual resources."
"The UI, monitoring, and alerting could benefit from further improvements."
"Hosting platforms are limited so the deployment process needs improvement."
 

Pricing and Cost Advice

Information not available
"The solution is open source so is free."
"We use the Community Edition, rather than the Enterprise Edition."
"The licensing for OpenNebula used to be free, but now it's no longer free. A customer contacted me asking to move to another provider because of the changes in the licensing terms for OpenNebula. I have no information on how much the OpenNebula license is because the customer pays for it, and I only do the integration."
"OpenNebuoa has recently come up with a new subscription model that is economical and a lot of new customers are choosing this as it is an easy subscription model."
"OpenNebula gives good value for money."
"VRA is very expensive but OpenNebula is free."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
10%
Computer Software Company
10%
University
10%
Comms Service Provider
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise6
Large Enterprise3
 

Questions from the Community

What needs improvement with Firefly?
If I talk about the cost, the cost is a little high. However, I think it is saving our cost in another way. So it is a win-win situation for both of us, the customer and the users. At conclusion, i...
What is your primary use case for Firefly?
I typically use Firefly to generate images. For example, when I want to create a social media post and quickly generate a Facebook ad, Firefly helps us generate quick images for our paid media or s...
What advice do you have for others considering Firefly?
Firefly is deployed on a public cloud. It is accessible through firefly.com. It is an amazing tool for me. I find it helpful, quick, and easy to use. If your use case suggests it, do not go for the...
What needs improvement with OpenNebula?
The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the n...
What is your primary use case for OpenNebula?
Previously, we were using VMware, but recently, we've started using OpenNebula for cloud management. As a big cloud provider, it helps give customers increased control over their clusters. We use L...
What advice do you have for others considering OpenNebula?
I recommend it, especially if you need a management interface for a small to medium private cloud. I would rate OpenNebula an eight out of ten.
 

Comparisons

 

Overview

 

Sample Customers

Information Not Available
Akamai, BBC, Fermilab, Terradue, Surf Sara, Produban, Netways, ESA, China Mobile, BlackBerry, Deloitte, Fuze, Telefonica, Trivago, Nokia, Encore Tech, Beeks.
Find out what your peers are saying about Nutanix, Broadcom, IBM and others in Cloud Management. Updated: March 2026.
885,728 professionals have used our research since 2012.