Cloudflare Developers•3mo ago

Maybe it's intentional, some overage to not discourage customers

ZetaxOP•10/3/25, 9:59 PM

Not sure

ZetaxOP•10/3/25, 9:59 PM

Although 3x seems a bit much lol

Nova Sven Cat•10/3/25, 9:59 PM

yeah im using the ai for an irc bot lmao

ZZetax Maybe it's intentional, some overage to not discourage customers

Nova Sven Cat•10/3/25, 10:02 PM

from the docs it says any future reqs will error if I reach that neuron quota :P

All limits reset daily at 00:00 UTC. If you exceed any one of the above limits, further operations will fail with an error.

Anon•10/4/25, 1:41 AM

Hey! I'm a software dev. I'm interested in building a RAG system and would like to hear y'all opinions on this platform when it comes to Workers AI and Vectorize. Thanks :3

Ashkan•10/5/25, 12:02 AM

Hey, how can I have message history such that ai model will have a message history and depend on this history will answer. for example. User: sum of 2 + 2? -> Model: the answer is 4 -> User:now multiply the result by 2User: sum of 2 + 2? -> Model: the answer is 4 -> User:now multiply the result by 2 at last user user input, ai model should have a history of messages and know what the

result

result

is.

AAshkan Hey, how can I have message history such that ai model will have a message histo...

Isaac McFadyen•10/5/25, 12:07 AM

That is possible but Workers AI will not do that for you. You need to store the messages somewhere (or have the client re-send the full history) and then send the full conversation with each Workers AI request.

IIsaac McFadyen That is possible but Workers AI will not do that for you. You need to store the ...

Ashkan•10/5/25, 12:11 AM

thanks for reply, this approach may result in exponential token_inputtoken_input and exponential cost

AAshkan thanks for reply, this approach may result in exponential `token_input` and expo...

Isaac McFadyen•10/5/25, 12:13 AM

That is just how LLMs work and how every provider does it, not just Workers AI. OpenAI, Gemini, Claude, etc all need to see the past history in order to act on it. If a message isn't in the context then it will not be seen by the model.

IIsaac McFadyen That is just how LLMs work and how every provider does it, not just Workers AI. ...

Ashkan•10/5/25, 12:14 AM

ok, I will try it. thanks for help

AAshkan Hey, how can I have message history such that ai model will have a message histo...

Anon•10/5/25, 2:16 AM

Use Durable Obejcts to store the history

Anon•10/5/25, 2:17 AM

At least that's what's recommended you could really store them anywhere

Comrade Nalaxone•10/5/25, 4:44 PM

For god sake can you all please update the docs to match the portal this drives me nuts every single time:

https://developers.cloudflare.com/workers-ai/get-started/rest-api/#1-get-api-token-and-account-id

Cloudflare Docs

REST API

Use the Cloudflare Workers AI REST API to deploy a large language model (LLM).

Comrade Nalaxone•10/5/25, 4:44 PM

Too big of a company for that to happen

LordSilver•10/6/25, 9:21 PM

what is the default model being used?

LLordSilver what is the default model being used?

Isaac McFadyen•10/6/25, 9:32 PM

There is no default, you pick whatever model on Workers AI you want to use yourself.

IIsaac McFadyen There is no default, you pick whatever model on Workers AI you want to use yours...

LordSilver•10/6/25, 9:37 PM

but i didn't pick anything

Isaac McFadyen•10/6/25, 9:38 PM

If you're using Workers AI you must have? Are you using another product of some sort?

LordSilver•10/6/25, 9:38 PM

ok it uses llama by default

IIsaac McFadyen If you're using Workers AI you must have? Are you using another product of some ...

LordSilver•10/6/25, 9:38 PM

i use Workes AI and i don't specify any model

LLordSilver i use Workes AI and i don't specify any model

Isaac McFadyen•10/6/25, 9:39 PM

You must be using a product that uses Workers AI and picks the model for you, there are no default models in Workers AI. I saw in #workers-and-pages-discussions that you're using Stagehand, correct? I expect that picks llama-3.3 for you.

LordSilver•10/6/25, 9:40 PM

mmm ok

sodepr•10/9/25, 6:15 AM

Hi,

Does Cloudflare support legacy endpoints (

/completions

/completions

/chat/completions

/chat/completions

) for new models (Eg: gpt-oss-20b)?

The document said that:

Workers AI supports OpenAI compatible endpoints for text generation (/v1/chat/completions)

Workers AI supports OpenAI compatible endpoints for text generation (/v1/chat/completions)

But I cannot use any new model.

Ashkan•10/9/25, 9:49 AM

doesn't

runWithTools

runWithTools

support

gateway

gateway

configuration?

Ssodepr Hi, Does Cloudflare support legacy endpoints (`/completions`, `/chat/completion...

Kevin•10/9/25, 9:52 AM

Use responses endpoint.

KKevin Use responses endpoint.

sodepr•10/9/25, 2:46 PM

Applications hasn't support new endpoint yet.

Ssodepr Applications hasn't support new endpoint yet.

Kevin•10/9/25, 2:51 PM

at least ai gateway does support it ai-gateway I have not tried workers ai directly

Hew•10/9/25, 7:27 PM

@sodepr The Cloudflare blog said in August that completions support was "coming soon" to the gpt-oss models. I haven't seen any update from them since, though. It would certainly be nice to have because, as you've pointed out, not everything supports the responses endpoint yet.

Razmjoo•10/9/25, 8:44 PM

Hi, is there any way to use

@cf/tomarkdown

@cf/tomarkdown

@cf/markdown

@cf/markdown

using the AI Gateway?

Manqo•10/10/25, 11:27 PM

Hello! I Been looking at worker ai For txt2img. Im quite new with these different Image models, i Have usually just used Gemini or chatgpt Image generation. But to cut down on spending im intrested of using worker ai to generate images. So My question which of The avaivable Image models IS best to create Hand draw pictures? I dont need realism. I tried Flux schell from huggingface but that tend to not create images that Look like drawings.

crazyjack12•10/11/25, 11:19 PM

Maybe stable-diffusion-xl-base-1.0

Sudhan•10/12/25, 11:56 AM

hey guys i have question. Lets say i have an worker endpoint for processing a audio file. The audio file is 500mb
The endpoint recieves the url and downloads during the endpoint runtime, and then transcribe the audio to text and then vectorize it.. I mean it takes a lot of time cpu compute so is it possible in workers?

MManqo Hello! I Been looking at worker ai For txt2img. Im quite new with these differen...

samjs•10/12/25, 6:02 PM

You could try lucid-origin? It generates some nice images in my experience. e.g. here's a short example:

lucidOrigin.get('/', async (c) => {
    // Generate the image
    const response = await c.env.AI.run(
        "@cf/leonardo/lucid-origin",
        {
            prompt: "picture in a hand-drawn style of a mini goldendoodle dog playing fetch in a field"
        }
    );
    console.log(response);

    // Embed the image directly as a data URL
    const imageDataUrl = `data:image/jpeg;base64,${response.image}`;

    const html = `
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AI Image Generator</title>
    <style>
        // styles
    </style>
</head>
<body>
    <div class="container">
        <h1>🎨 Leonardo AI Image Generator</h1>
        <p>Generating: <em>A mini goldendoodle dog playing fetch in a field (hand-drawn style)</em></p>
        <div class="image-container">
            <img src="${imageDataUrl}" alt="AI Generated Image" />
        </div>
    </div>
</body>
</html>
    `;
    return c.html(html);
});

lucidOrigin.get('/', async (c) => {
    // Generate the image
    const response = await c.env.AI.run(
        "@cf/leonardo/lucid-origin",
        {
            prompt: "picture in a hand-drawn style of a mini goldendoodle dog playing fetch in a field"
        }
    );
    console.log(response);

    // Embed the image directly as a data URL
    const imageDataUrl = `data:image/jpeg;base64,${response.image}`;

    const html = `
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AI Image Generator</title>
    <style>
        // styles
    </style>
</head>
<body>
    <div class="container">
        <h1>🎨 Leonardo AI Image Generator</h1>
        <p>Generating: <em>A mini goldendoodle dog playing fetch in a field (hand-drawn style)</em></p>
        <div class="image-container">
            <img src="${imageDataUrl}" alt="AI Generated Image" />
        </div>
    </div>
</body>
</html>
    `;
    return c.html(html);
});

SSudhan hey guys i have question. Lets say i have an worker endpoint for processing a au...

samjs•10/12/25, 6:07 PM

Hey @Sudhan . There are a couple of things that might help here:

1. you can pass in a stream of bytes for the inputs in many of the models, e.g. in the nova-3 example you can fetch and pass in the body directly (without needing to await it: https://developers.cloudflare.com/workers-ai/models/nova-3/)
2. Some models (like nova-3) support our async batch API (https://developers.cloudflare.com/workers-ai/features/batch-api/). So you can submit the job for running the inference and then poll for the response.

In both cases, it shouldn't be using much compute in the worker itself.

John Spurlock•10/12/25, 11:10 PM

Does anyone know what the

"p"

"p"

property represents when streaming results back from

@cf/google/gemma-3-12b-it

@cf/google/gemma-3-12b-it

? I can't find any docs on it

Peps•10/12/25, 11:28 PM

its padding

JJohn Spurlock Does anyone know what the `"p"` property represents when streaming results back ...

Peps•10/12/25, 11:28 PM

the reason for the padding is more covered here: https://blog.cloudflare.com/ai-side-channel-attack-mitigated/

The Cloudflare Blog

Mitigating a token-length side-channel attack in our AI products

The Workers AI and AI Gateway team recently collaborated closely with security researchers at Ben Gurion University regarding a report submitted through our Public Bug Bounty program. Through this process, we discovered and fully patched a vulnerability affecting all LLM providers. Here’s the story

PPeps the reason for the padding is more covered here: https://blog.cloudflare.com/ai-...

John Spurlock•10/12/25, 11:29 PM

thanks!

Ssamjs Hey @Sudhan . There are a couple of things that might help here: 1. you can pa...

Sudhan•10/13/25, 5:05 AM

Thank you for the help

zsueo•10/13/25, 5:24 PM

does workers ai json mode respect patterns in the json schema?

zsueo•10/13/25, 5:25 PM

ie if i include regex will it follow the regex?

Zzsueo does workers ai json mode respect patterns in the json schema?

Ashkan•10/13/25, 9:22 PM

I've tried it, the answer is almost Yes but for some models. as far as I tested,

llama-4

llama-4

and

gpt-oss-120b

gpt-oss-120b

response in provided JSON schema. But keep it mind that schema Must well defined and emphasize in your prompt that use JSON schema.

AAshkan I've tried it, the answer is almost Yes but for some models. as far as I tested,...

Isaac McFadyen•10/13/25, 9:37 PM

I think they are specifically asking about regex support not JSON schema support in general

IIsaac McFadyen I think they are specifically asking about regex support not JSON schema support...

Ashkan•10/13/25, 9:44 PM

Yea I see, I thought she means pattern of schema but it is pattern of regex. thanks for clarification.

antim8•10/14/25, 6:49 PM

are onnx custom models supported / available somehow? Wasm seems supported: https://blog.cloudflare.com/webgpu-in-workers/

The Cloudflare Blog

You can now use WebGPU in Cloudflare Workers

Today, we are introducing WebGPU support to Cloudflare Workers. This blog will explain why it's important, why we did it, how you can use it, and what comes next.

Aantim8 are onnx custom models supported / available somehow? Wasm seems supported: htt...

Isaac McFadyen•10/14/25, 6:50 PM

Unfortunately WebGPU only ever landed in local dev and is not a thing in production Workers. And no, Workers AI does not currently support custom models.

Isaac McFadyen•10/14/25, 6:51 PM

https://developers.cloudflare.com/durable-objects/api/webgpu/

antim8•10/14/25, 6:51 PM

is it possible to use the onnx through rust workers which are built on top of wasm to my understanding?

Isaac McFadyen•10/14/25, 6:52 PM

You might be able to? It would be CPU-only and likely quite slow but maybe usable for very small models. Keep in mind that Workers have a size limit of 10mb at deployment time and while you could load in models at runtime you're limited to 128mb of RAM total, shared among all incoming requests to that specific machine.

lucidOrigin.get('/', async (c) => { // Generate the image const response = await c.env.AI.run( "@cf/leonardo/lucid-origin", { prompt: "picture in a hand-drawn style of a mini goldendoodle dog playing fetch in a field" } ); console.log(response); // Embed the image directly as a data URL const imageDataUrl = `data:image/jpeg;base64,${response.image}`; const html = ` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>AI Image Generator</title> <style> // styles </style> </head> <body> <div class="container"> <h1>🎨 Leonardo AI Image Generator</h1> <p>Generating: <em>A mini goldendoodle dog playing fetch in a field (hand-drawn style)</em></p> <div class="image-container"> <img src="${imageDataUrl}" alt="AI Generated Image" /> </div> </div> </body> </html> `; return c.html(html); });

Maybe it's intentional, some overage to not discourage customers

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