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Vivaldi is a free, fast web browser designed for power-users. You decide how you browse. Download Vivaldi's fully customisable browser now and browse your way.

OpenRouter
APIVAI
AunuCore.bond
APIClan.us
Api.Airforce
boldrouter
Requesty.ai
OpenAI-compatible multi-model API for GPT, Claude, Gemini, DeepSeek and more.

Which is more popular?
Based on our record, Vivaldi seems to be more popular. It has been mentioned 162 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | vivaldi.com | mandapi.com |
| Pricing | — | |
| Company | Startup from Norway | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Vivaldi yet.
MandAPI is an OpenAI-compatible multi-model AI API gateway for developers. It provides unified access to GPT, Claude, Gemini, DeepSeek and other AI model families through a single API endpoint. Key features include: - OpenAI-compatible API - Multiple AI model providers - Streaming and...
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of MandAPI yet.
Walkthroughs and reviews on video.
Vivaldi Is Awesome: Ditch Chrome | Full Vivaldi Tutorial 2018
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Vivaldi and MandAPI.
MandAPI's answer:
MandAPI is primarily built for software developers, indie hackers, AI startups, SaaS teams, agencies and technical teams that need programmatic access to multiple large language models through a unified API.
MandAPI's answer:
MandAPI combines multiple AI model families behind a single OpenAI-compatible API. Developers can access GPT, Claude, Gemini, DeepSeek and other models without maintaining separate integrations for every provider. It also provides transparent usage-based pricing, model discovery, usage tracking and developer tooling.
MandAPI's answer:
MandAPI is designed for developers who want a simple way to use multiple AI providers through one familiar API. Its OpenAI-compatible interface makes migration straightforward, while unified billing, model discovery, transparent pricing and support for multiple model families reduce the operational work required to manage several AI APIs separately.
MandAPI's answer:
MandAPI started from a simple problem: developers increasingly need access to several AI model providers, but every provider has different APIs, pricing systems and account requirements. MandAPI was built to simplify that fragmented experience by providing a single OpenAI-compatible interface for multiple model families, with transparent pricing and developer-focused tooling.
MandAPI's answer:
MandAPI is built around an OpenAI-compatible REST API architecture with streaming support, API-key authentication, multi-provider routing, usage metering and model catalog services. The production platform uses containerized cloud infrastructure, reverse proxying and CDN services for deployment and traffic delivery.
Share your experience with using Vivaldi and MandAPI. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


And there's plenty more to like about Vivaldi. Its unique tab management tool allows you to stack multiple tab rows on top of each other, so you can group certain websites to clear clutter and make more room on your...
Compared to Brave, Vivaldi lacks privacy features, but the huge extension support compensates for that. In my experience, both Brave and Vivaldi offer the same browsing speed, and the system impact was also equal.
Vivaldi's RSS reader is new, and features are somewhat limited. For example, it doesn't handle some of the extras that other services do, like newsletters and Facebook pages. If you just want a simple reader to...
We have no reviews of MandAPI yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


The solution for the (as of yet) small group of people who cares about these things is very simple: community driven forks. With the bonus that you also get a set of great (and per fork different yet handy) features. These include:... - Source: Hacker News / 11 months ago
Last, but not least in my journey to find the perfect browser for me is Vivaldi. This browser was developed back in 2015 by a former Opera co-founder and markets itself to primarily power users. The browser strives to be the all-in-one... - Source: dev.to / about 1 year ago
I use Vivaldi[1], it seems to work fairly well. Also has built-int adblocker although I'm not sure how good it is compared to Ublock or others. [1] https://vivaldi.com/. - Source: Hacker News / over 1 year ago
Tracking MandAPI since Oct 2026.
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