Google Gemini API vs Cloudflare Workers AI: free tiers compared

Both columns come from each provider’s own pages, with the day each line was read. Where a page does not state a value, the cell says so.

Google Gemini API and Cloudflare Workers AI free tiers side by side
Line	Google Gemini APIFree tier	Cloudflare Workers AIFree tier
Free allowance	Not published Limits are per project and shown only inside Google AI Studio. 3 Oct	10,000 Neurons/day Resets at 00:00 UTC. Going above it needs Workers Paid ($0.011 per 1,000 Neurons). 3 Oct
Requests / min	Not published Not published per model: “Rate limits … can be viewed in Google AI Studio.” 3 Oct	Not published The allowance is counted in Neurons, not in requests. 3 Oct
Requests / day	Not published Not published per model: “Rate limits … can be viewed in Google AI Studio.” 3 Oct	Not published The allowance is counted in Neurons, not in requests. 3 Oct
Tokens / min	Not published Not published per model. 3 Oct	Not published The allowance is counted in Neurons, not in tokens. 3 Oct
Tokens / day	Not published Not published per model. 3 Oct	Not published The allowance is counted in Neurons, not in tokens. 3 Oct
Card to start	Not required The Free tier qualifies with an “Active project or free trial”; no billing tier is involved. 3 Oct	Not verified
Trains on your data	Yes On unpaid services, content is used “to provide, improve, and develop Google products”, and human reviewers may read it. 3 Oct	No “Cloudflare does not use your Customer Content to train any AI models made available on Workers AI.” 3 Oct
Commercial use	Restricted Only Paid Services may be used for API clients offered to users in the EEA, Switzerland or the UK. 3 Oct	Not verified
OpenAI SDK	Yes 3 Oct	Yes Chat completions and embeddings; the base URL contains your account id. 3 Oct
Image input	Yes Gemini models take images natively. 3 Oct	Not verified

20 of 24 cells above were read on the provider’s own page in the last 30 days (oldest check: 3 Oct 2026). Each check mark opens that page. The other 4 say “not verified” instead of repeating a number from someone else’s article.

Where they differ

Use of your prompts for training: Google Gemini API, yes; Cloudflare Workers AI, no.
Google Gemini API commercial use: restricted. Only Paid Services may be used for API clients offered to users in the EEA, Switzerland or the UK.
Image input is confirmed on Google Gemini API and not confirmed on Cloudflare Workers AI.

Only differences confirmed on both sides are listed. We do not rank speed or output quality: this site does not measure them.

Same code for both

Both expose an OpenAI-compatible endpoint. Choose either provider below and compare the three values that change.

base_url: https://generativelanguage.googleapis.com/v1beta/openai/
model: gemini-3.8-flash
key from: $GEMINI_API_KEY

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://generativelanguage.googleapis.com/v1beta/openai/",
    api_key=os.environ["GEMINI_API_KEY"],
)

reply = client.chat.completions.create(
    model="gemini-3.8-flash",
    messages=[{"role": "user", "content": "Reply with the word: ok"}],
)
print(reply.choices[0].message.content)

Endpoint read on 3 Oct 2026· ai.google.dev

The key is read from an environment variable on your machine. This site has no field for keys and never asks for one.

Other comparisons

Questions and answers

Which has the higher free limit, Google Gemini API or Cloudflare Workers AI?

Google Gemini API: not published (Limits are per project and shown only inside Google AI Studio). Cloudflare Workers AI: 10,000 Neurons/day. The units differ between providers, so compare them against your own traffic.

Do Google Gemini API and Cloudflare Workers AI need a credit card?

Google Gemini API: not required. Cloudflare Workers AI: not verified on an official page.

Which one trains on my prompts?

Google Gemini API: yes. Cloudflare Workers AI: no.

Can I use both with the same code?

Yes. Both expose an OpenAI-compatible endpoint: https://generativelanguage.googleapis.com/v1beta/openai/ and https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/v1. Only the base URL, the model name and the key change.