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During Developer Week in April 2024, we announced General Availability of Workers AI, and today, we are excited to announce that AI Gateway is Generally Available as well. Since its launch to beta in September 2023 during Birthday Week, we’ve proxied over 500 million requests and are now prepared for you to use it in production.

AI Gateway is an AI ops platform that offers a unified interface for managing and scaling your generative AI workloads. At its core, it acts as a proxy between your service and your inference provider(s), regardless of where your model runs. With a single line of code, you can unlock a set of powerful features focused on performance, security, reliability, and observability – think of it as your control plane for your AI ops. And this is just the beginning – we have a roadmap full of exciting features planned for the near future, making AI Gateway the tool for any organization looking to get more out of their AI workloads.

Why add a proxy and why Cloudflare?

The AI space moves fast, and it seems like every day there is a new model, provider, or framework. Given this high rate of change, it’s hard to keep track, especially if you’re using more than one model or provider. And that’s one of the driving factors behind launching AI Gateway – we want to provide you with a single consistent control plane for all your models and tools, even if they change tomorrow, and then again the day after that.

We've talked to a lot of developers and organizations building AI applications, and one thing is clear: they want more observability, control, and tooling around their AI ops. This is something many of the AI providers are lacking as they are deeply focused on model development and less so on platform features.

Why choose Cloudflare for your AI Gateway? Well, in some ways, it feels like a natural fit. We've spent the last 10+ years helping build a better Internet by running one of the largest global networks, helping customers around the world with performance, reliability, and security – Cloudflare is used as a reverse proxy by nearly 20% of all websites. With our expertise, it felt like a natural progression – change one line of code, and we can help with observability, reliability, and control for your AI applications – all in one control plane – so that you can get back to building.

Here is that one line code change using the OpenAI JS SDK. And check out our docs to reference other providers, SDKs, and languages.

import OpenAI from 'openai';

const openai = new OpenAI({
apiKey: 'my api key', // defaults to process.env["OPENAI_API_KEY"]
	baseURL: "https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_slug}/openai"
});

What’s included today?

After talking to customers, it was clear that we needed to focus on some foundational features before moving onto some of the more advanced ones. While we're really excited about what’s to come, here are the key features available in GA today:

Analytics: Aggregate metrics from across multiple providers. See traffic patterns and usage including the number of requests, tokens, and costs over time.

Real-time logs: Gain insight into requests and errors as you build.

Caching: Enable custom caching rules and use Cloudflare’s cache for repeat requests instead of hitting the original model provider API, helping you save on cost and latency.

Rate limiting: Control how your application scales by limiting the number of requests your application receives to control costs or prevent abuse.

Support for your favorite providers: AI Gateway now natively supports Workers AI plus 10 of the most popular providers, including Groq and Cohere as of mid-May 2024.

Universal endpoint: In case of errors, improve resilience by defining request fallbacks to another model or inference provider.

curl https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_slug} -X POST \
  --header 'Content-Type: application/json' \
  --data '[
  {
    "provider": "workers-ai",
    "endpoint": "@cf/meta/llama-2-7b-chat-int8",
    "headers": {
      "Authorization": "Bearer {cloudflare_token}",
      "Content-Type": "application/json"
    },
    "query": {
      "messages": [
        {
          "role": "system",
          "content": "You are a friendly assistant"
        },
        {
          "role": "user",
          "content": "What is Cloudflare?"
        }
      ]
    }
  },
  {
    "provider": "openai",
    "endpoint": "chat/completions",
    "headers": {
      "Authorization": "Bearer {open_ai_token}",
      "Content-Type": "application/json"
    },
    "query": {
      "model": "gpt-3.5-turbo",
      "stream": true,
      "messages": [
        {
          "role": "user",
          "content": "What is Cloudflare?"
        }
      ]
    }
  }
]'

What’s coming up?

We've gotten a lot of feedback from developers, and there are some obvious things on the horizon such as persistent logs and custom metadata – foundational features that will help unlock the real magic down the road.

But let's take a step back for a moment and share our vision. At Cloudflare, we believe our platform is much more powerful as a unified whole than as a collection of individual parts. This mindset applied to our AI products means that they should be easy to use, combine, and run in harmony.

Let's imagine the following journey. You initially onboard onto Workers AI to run inference with the latest open source models. Next, you enable AI Gateway to gain better visibility and control, and start storing persistent logs. Then you want to start tuning your inference results, so you leverage your persistent logs, our prompt management tools, and our built in eval functionality. Now you're making analytical decisions to improve your inference results. With each data driven improvement, you want more. So you implement our feedback API which helps annotate inputs/outputs, in essence building a structured data set. At this point, you are one step away from a one-click fine tune that can be deployed instantly to our global network, and it doesn't stop there. As you continue to collect logs and feedback, you can continuously rebuild your fine tune adapters in order to deliver the best results to your end users.

This is all just an aspirational story at this point, but this is how we envision the future of AI Gateway and our AI suite as a whole. You should be able to start with the most basic setup and gradually progress into more advanced workflows, all without leaving Cloudflare’s AI platform. In the end, it might not look exactly as described above, but you can be sure that we are committed to providing the best AI ops tools to help make Cloudflare the best place for AI.

How do I get started?

AI Gateway is available to use today on all plans. If you haven’t yet used AI Gateway, check out our developer documentation and get started now. AI Gateway’s core features available today are offered for free, and all it takes is a Cloudflare account and one line of code to get started. In the future, more premium features, such as persistent logging and secrets management will be available subject to fees. If you have any questions, reach out on our Discord channel.