A4F

Access hundreds of LLMs through one API for Free

3.8•17 reviews•

79 followers

Access hundreds of LLMs through one API for Free

3.8•17 reviews•

79 followers

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A4F: Your Unified AI Gateway Free GPT, Claude, Gemini & Deepseek models with better uptime. Access hundreds of LLMs through one unified API. No subscriptions. Claude 4 Sonnet, Gemini 2.5 Pro, GPT-4.1, Deepseek-v3, Meta Llama-4, & More...

Free

Launch tags:API•SaaS•Artificial Intelligence

Launch Team

Viktor.comAn AI coworker that actually does the work

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Maker

📌

A4F: Where SOTA AI Meets Affordability and Open-source - We're passionate about offering unlimited personal access to top-tier models, all built on transparent open-source principles for your privacy. Accessible, Affordable, and Open AI for All. - We believe access to powerful AI shouldn't be a luxury. That's why A4F is engineered from the ground up to offer globally competitive API pricing, making cutting-edge technology available to all. For individuals, learners, and creators, we champion unfettered personal access to our API services, fostering a space for boundless innovation. - Our foundation is built on 100% open-source software. A4F champions transparency and community collaboration, as we believe this is the only path to creating truly privacy-respecting AI services that developers can implicitly trust.

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1yr ago

3.8

Based on 17 reviews

Review A4F ?

Reviewers like A4F for its easy setup, single API across many models, generous free access, and generally beginner-friendly experience. Several say it saves time, feels close to the OpenAI API, and works smoothly enough for testing different models. But the main criticism is reliability: users report outages, crashes, vague errors, missing streaming support, and models that seem mislabeled, duplicated, or unavailable. That tension is strongest on paid plans, where some reviewers say premium access is not dependable enough to justify the cost.

+14

Summarized with AI

Pros

Cons

Reviews

Most Informative

3.8

Based on 17 reviews

Review A4F ?

+14

Summarized with AI

Pros

variety of AI models (8)

free API access (7)

unified API (5)

good for students and beginners (4)

easy setup (3)

excellent customer support (2)

generous free tier (2)

user-friendly interface (2)

Cons

model availability issues (4)

duplicate models (3)

inaccurate model behavior (2)

limited API key per account (2)

misleading model count (2)

model functionality issues (2)

Pros

Cons

Reviews

Most Informative

•1 review

I recently came across A4F, and honestly, it’s one of the smoothest tools I’ve tried for working with AI models. Instead of juggling multiple APIs from OpenAI, Anthropic, Google, etc., A4F gives you a single API that works across all of them. The best part? It feels just like using the OpenAI API, so I barely had to change my code. The setup was super quick—I just signed in, grabbed an API key, and was ready to go in minutes. Performance has been great too. It’s almost as fast as going directly to the provider (the delay is so tiny you don’t even notice), and it even reroutes requests if one of the providers is down. That’s a lifesaver if you’re building something that people rely on. Another thing I really appreciate is their approach to privacy and data. They don’t use your prompts to train models, and you can even choose providers based on their data policies. That gave me peace of mind, especially compared to some other services that feel a bit shady. So far, my experience has been solid—reliable, simple to use, and no hidden catches. If you’re a developer who wants to experiment with different LLMs without constantly switching APIs or managing multiple accounts, I’d definitely recommend giving A4F a try.

What's great

easy setup (3)unified API (5)

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64 views12mo ago

•1 review

The A4F is incredibly well-structured and beginner-friendly. The way it unifies access to hundreds of AI models through a single API endpoint for free is a huge time-saver, eliminating the hassle of switching providers or rewriting code. I especially appreciate the built-in cost optimization and fallback handling — it feels like a smart assistant is managing API calls for me. The clear examples and minimal setup steps make it easy to get started within minutes, whether using OpenAI SDK or any preferred framework. Overall, an excellent developer experience!

What's great

easy setup (3)unified API (5)free API access (7)good for students and beginners (4)

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56 views1yr ago

•1 review

I signed up for the PRO plan, which was "useful" for my purposes to a certain extent. BUT some AIs are NOT the model indicated on the label. Just do a very simple test, ask the AI what version it is; the wrong version can disrupt people's work. Sonnet 4 was running 3.5. Grok 4 was running the initial Grok 1. I couldn't do any further checks. And Playground V2 doesn't work; it says "Application error: a client-side exception has occurred while loading playground.a4f.co (see the browser console for more information)." I prefer to believe it was an internal configuration error. Please fix this.

What needs improvement

inaccurate model behavior (2)model functionality issues (2)

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46 views1yr ago

•1 review

What's great

easy setup (3)unified API (5)

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64 views12mo ago

•1 review

What's great

easy setup (3)unified API (5)free API access (7)good for students and beginners (4)

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56 views1yr ago

•1 review

What needs improvement

inaccurate model behavior (2)model functionality issues (2)

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46 views1yr ago