danchaw / gemini-openai-proxy

Convert OpenAI protocol to Google Gemini Pro protocol https://gemini-openai-proxy.zuisong.workers.dev

Gemini-OpenAI-Proxy

Gemini-OpenAI-Proxy is a proxy software. It is designed to convert OpenAI API protocol calls into Google Gemini Pro protocol, so that software using OpenAI protocol can use Gemini Pro model without perception.

If you're interested in using Google Gemini but don't want to modify your software, Gemini-OpenAI-Proxy is a great option. It allows you to easily integrate the powerful features of Google Gemini without having to do any complex development work.

Demo

Get api key from https://makersuite.google.com/app/apikey

✅ Gemini Pro

curl -s http://localhost:8000/v1/chat/completions \
  -H "Authorization: Bearer $YOUR_GEMINI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
      "model": "gpt-3.5-turbo",
      "messages": [{"role": "user", "content": "Hello, Who are you?"}],
      "temperature": 0.7
      }'

✅ Gemini Pro Vision

curl -s http://localhost:8000/v1/chat/completions \
  -H "Authorization: Bearer $YOUR_GEMINI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gpt-4-vision-preview",
  "messages": [
    {
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "What do you see in this picture?"
        },
        {
          "type": "image_url",
          "image_url": {
            "url": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAnAgMAAAA0vyM3AAAACVBMVEX/4WwCAgF3aTMcpbzGAAAAa0lEQVR4nGOgAWB1QOYEIHFEcXKmhCBxQqYgcSLEEGymAFEEhzFAFYmTwNoA53A6IDmB1YETidPAiLBVFGgEgrNqJYIzNTQU4Z5QZA6QNQ3hGpAZcNegceBOADFQOQlQDhfQyUwLkPxKVwAABbkRCcDA66QAAAAASUVORK5CYII="
          }
        }
      ]
    }
  ],
  "stream": false
}'

Plan

• /v1/chat/completions
  • stream
  • complete

Model Mappings

OpenAI Model	Gemini Model
gpt-3.5-turbo	gemini-1.0-pro-latest
gpt-4	gemini-1.5-pro-latest
gpt-4-vision-preview	gemini-1.0-pro-vision-latest
gpt-4-turbo	gemini-1.5-pro-latest
gpt-4o	gemini-1.5-flash-latest
gpt-4-turbo-preview	gemini-1.5-pro-latest
...others	gemini-1.0-pro-latest

Run On Serverless

Cloudflare Workers

build command npm run build:cf_worker

Copy main_cloudflare-workers.mjs to cloudflare-workers

Deno Deploy

build command npm run build:deno

Copy main_deno.mjs to deno deploy

Vercel

build command npm run build:cf_worker

• Alternatively can be deployed with cli: vercel deploy
• Serve locally: vercel dev
• Vercel Functions limitations (with Edge runtime)

Run On Local

deno

deno task start:deno

node

npm install && npm run start:node

bun

bun run start:bun

docker

docker run -d -p 8000:8000 ghcr.io/zuisong/gemini-openai-proxy:deno
## or
docker run -d -p 8000:8000 ghcr.io/zuisong/gemini-openai-proxy:bun
## or
docker run -d -p 8000:8000 ghcr.io/zuisong/gemini-openai-proxy:node

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