GPT-3.5 Turbo API

Fast and cost-efficient OpenAI model for a wide range of text generation and conversation tasks.
Context
16K tokens
Input
$0.65 / 1M
Output
$1.95 / 1M
Released
Aug 7, 2025

How to use GPT-3.5 Turbo API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to openai/gpt-3.5-turbo-0125.

import requests

r = requests.post(
   "https://api.aimlapi.com/v1/chat/completions",
   headers={"Authorization": "Bearer " + AIMLAPI_KEY},
   json={
     "model": "openai/gpt-3.5-turbo-0125",
     "messages": [
       {
         "role": "user",
         "content": "Hello!"
       }
     ]
   },
)
print(r.json())

const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "openai/gpt-3.5-turbo-0125",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-3.5-turbo-0125","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

GPT-3.5 Turbo API Pricing

TypePrice
Input
$0.65 / 1M
Output
$1.95 / 1M

GPT-3.5 Turbo supports rate limits that vary by usage tier, with Free listed as not supported and higher tiers capped by RPM, TPM, and batch queue limits.

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