openai
OpenAI: GPT-3.5 Turbo API Pricing
OpenAI: GPT-3.5 Turbo costs $0.500 per 1M input tokens and $1.50 per 1M output tokens. Context window: 16K. Prices verified 2026-08-23 Β· source
Input / 1M tokens
$0.500
Output / 1M tokens
$1.50
Context window
16K
Max output
4K
What would OpenAI: GPT-3.5 Turbo cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $10.00 |
| Coding agent | 5,000 | 8,000 / 2,000 | $35.00 |
| RAG pipeline | 30,000 | 4,000 / 500 | $82.50 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $23.00 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About OpenAI: GPT-3.5 Turbo
GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.
Compare OpenAI: GPT-3.5 Turbo with
Official resources
- OpenAI: GPT-3.5 Turbo on OpenRouter β live endpoint, pricing source of record.
- Get an OpenRouter API key β β one key, every model including Turbo. Free credits on signup.
- Shred your current bill β paste a CSV and see if switching saves money.