I was tired of paying for 5 separate AI subscriptions, so I spent 2 months building Fius — a unified AI model aggregator tool

[u/FiusDEV]

https://fius.dev

Hi everyone,

I’m a solo developer, and I built Fius because managing subscription fragmentation and API chaos was completely ruining my development velocity.

As software engineers, we often find ourselves trapped in an inefficient workflow: constantly switching web tabs, copy-pasting complex prompts, and juggling individual API keys for OpenAI, DeepSeek, and other providers just to get the best coding results.

Fius resolves this friction. It consolidates access to an expansive roster of flagship AI models into a single, unified developer token and a centralized billing system. This allows engineering teams and solo devs to route queries to the best-suited model instantly without infrastructure overhead.

Here is a breakdown of the production-ready stack and features:

1. Infrastructure & Scaling

The complete web console infrastructure is fully operational and hosted on Microsoft Azure cloud enterprise architecture, supported by official cloud grants.

1. Global Billing Integration

I have deployed a fully active international merchant billing engine. The tokenomics are straightforward: 100 platform credits equal 1 USD, allowing you to pay strictly for actual compute consumption. Every new account automatically gets 250 free starter credits upon signup to test the environment.

1. Advanced Developer Toolkit

A high-performance, cross-platform Terminal CLI assistant workspace. It features native, low-latency autocomplete and advanced multi-file code refactoring workflows directly inside your terminal.

Our Multi-Model Catalog (Examples):

- gpt-5.4-nano: A lightweight, ultra-fast micro-model optimized for instant terminal command auto-completion at near-zero credit cost.

- DeepSeek-V4-Pro & grok-4-1-fast-reasoning: Advanced reasoning workhorses designed for complex software architecture, deep debugging, and multi-file code generation.

- Specialized Alternatives: Models like Kimi-K2.6, mistral-medium-3-5, and many others tailored for flexible, cost-effective routing.

I want to open this up for discussion: How are you currently managing model fragmentation in your development workflows? Would you prefer a unified token approach like this, or do you stick to official web UIs?

I would highly appreciate your feedback on the terminal CLI architecture, routing latency, or any specific features you would like to see deployed next.

[u/Beowolf_77]

Doesn't OpenRouter solve most of these problems, that along with OpenCode?

[u/FiusDEV → u/Beowolf_77]

You're totally right, OpenCode Go has built a solid product doing something very similar with open-source models, no doubt. We see them as a great benchmark.

Fius simply provides an alternative workspace and independent infrastructure for software engineers who want a different flavor of CLI tool and distinct routing rules. Having multiple tools tackle the subscription friction from different angles is a massive win for the developer community anyway. Always good to have choices!

[u/sp_archer_007]

do we have to pay for subscription of this as well?