# GPT-3.5 Turbo Instruct API pricing

GPT-3.5 Turbo Instruct is an earlier OpenAI model, still sold. It costs $1.50 per million tokens it reads and $2 per million it writes, $1.63 on a mix of 3 read for each 1 written. OpenAI's newest models are GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna. Below are every price OpenAI lists for it, and what 8 everyday jobs cost a month on it.

- Page: https://tecyfy.com/prices/gpt-3-5-turbo-instruct
- Maker: OpenAI

## Price per million tokens, in US dollars

| | Price |
| --- | --: |
| Input | $1.50 |
| Cached input | not listed |
| Cache write | not listed |
| Output | $2 |
| Blend, 3 read for each 1 written | $1.63 |
| Batch input | not listed |
| Batch output | not listed |
| Context window, tokens | 4K |
| Longest answer, tokens | 4K |
| Capability score (Epoch Capabilities Index; GPT-5 is 150) | not scored |

## What 8 everyday jobs cost a month

Each job at its usual runs a day, for 30 days, at the standard price.

| Job | Tokens in, out, runs a day | A run | A month |
| --- | --- | --: | --: |
| A chat question | 300, 500, 100 | 0.14 cents | $4.35 |
| A hard question, with thinking | 300, 1,400, 100 | 0.33 cents | $9.75 |
| A long report, summarised | 60,000, 2,000, 20 | too long for its window |  |
| A 40-turn agent task | 2,800,000, 40,000, 10 | too long for its window |  |
| A support bot's reply | 4,000, 300, 2,000 | too long for its window |  |
| Sort a message into a category | 250, 5, 50,000 | 0.039 cents | $578 |
| Read an invoice into fields | 1,500, 250, 1,000 | 0.27 cents | $82.50 |
| Review a pull request | 25,000, 4,500, 50 | too long for its window |  |

## Questions

### How much does GPT-3.5 Turbo Instruct cost?

GPT-3.5 Turbo Instruct costs $1.50 per million input tokens, the text it reads, and $2 per million output tokens, the text it writes, thinking included. On a mix of 3 tokens read for each 1 written, that is $1.63 per million.

### Does GPT-3.5 Turbo Instruct have a batch price?

Not on OpenAI's price page, which lists no batch price for GPT-3.5 Turbo Instruct. The cache still lowers the price of text it reads again.

### What is the context window of GPT-3.5 Turbo Instruct?

GPT-3.5 Turbo Instruct holds 4K tokens at once, about 6.1 pages of English text, and writes up to 4K tokens in one answer. The window holds your instructions, the files you attach, the conversation so far and the answer.

### How good is GPT-3.5 Turbo Instruct?

Epoch AI has no independent score for GPT-3.5 Turbo Instruct yet. Run the same 10 tasks of your own on it and on a model you know, and compare the answers and the bills.

### Should I still use GPT-3.5 Turbo Instruct?

It is still sold, so it keeps working, but OpenAI's newest models are GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna. Compare its price with theirs below, and run your own tasks on the newer model before you move.

## Sources

- [OpenAI: API prices](https://developers.openai.com/api/docs/pricing)
- Every model's prices as [JSON](https://tecyfy.com/prices.json) or [CSV](https://tecyfy.com/prices.csv), free to use

## Compare

- [GPT-3.5 Turbo Instruct vs GPT-6 Astra](https://tecyfy.com/prices/compare/gpt-3-5-turbo-instruct-vs-gpt-6-astra.md)
- [GPT-3.5 Turbo Instruct vs GPT-6.1 Sol](https://tecyfy.com/prices/compare/gpt-3-5-turbo-instruct-vs-gpt-6-1-sol.md)
- [GPT-3.5 Turbo Instruct vs GPT-6 Luna](https://tecyfy.com/prices/compare/gpt-3-5-turbo-instruct-vs-gpt-6-luna.md)

## OpenAI's other models

- [GPT-6 Astra](https://tecyfy.com/prices/gpt-6-astra.md)
- [GPT-6.1 Sol](https://tecyfy.com/prices/gpt-6-1-sol.md)
- [GPT-6 Luna](https://tecyfy.com/prices/gpt-6-luna.md)
- [GPT-6 Sol](https://tecyfy.com/prices/gpt-6-sol.md)
- [GPT-5.6 Sol](https://tecyfy.com/prices/gpt-5-6-sol.md)
- [GPT-5.6 Terra](https://tecyfy.com/prices/gpt-5-6-terra.md)
- [GPT-5.6 Luna](https://tecyfy.com/prices/gpt-5-6-luna.md)
- [GPT-5.5](https://tecyfy.com/prices/gpt-5-5.md)
- [GPT-5.5 pro](https://tecyfy.com/prices/gpt-5-5-pro.md)
- [GPT-5.4](https://tecyfy.com/prices/gpt-5-4.md)
- [GPT-5.4 mini](https://tecyfy.com/prices/gpt-5-4-mini.md)
- [GPT-5.4 nano](https://tecyfy.com/prices/gpt-5-4-nano.md)
- [GPT-5.4 pro](https://tecyfy.com/prices/gpt-5-4-pro.md)
- [GPT-5.2](https://tecyfy.com/prices/gpt-5-2.md)
- [GPT-5.2 pro](https://tecyfy.com/prices/gpt-5-2-pro.md)
- [GPT-5.1](https://tecyfy.com/prices/gpt-5-1.md)
- [GPT-5](https://tecyfy.com/prices/gpt-5.md)
- [GPT-5 mini](https://tecyfy.com/prices/gpt-5-mini.md)
- [GPT-5 nano](https://tecyfy.com/prices/gpt-5-nano.md)
- [GPT-5 pro](https://tecyfy.com/prices/gpt-5-pro.md)
- [GPT-4.1](https://tecyfy.com/prices/gpt-4-1.md)
- [GPT-4.1 mini](https://tecyfy.com/prices/gpt-4-1-mini.md)
- [GPT-4.1 nano](https://tecyfy.com/prices/gpt-4-1-nano.md)
- [GPT-4o](https://tecyfy.com/prices/gpt-4o.md)
- [GPT-4o (2024-05-13)](https://tecyfy.com/prices/gpt-4o-2024-05-13.md)
- [GPT-4o mini](https://tecyfy.com/prices/gpt-4o-mini.md)
- [o1](https://tecyfy.com/prices/o1.md)
- [o1-pro](https://tecyfy.com/prices/o1-pro.md)
- [o3-pro](https://tecyfy.com/prices/o3-pro.md)
- [o3](https://tecyfy.com/prices/o3.md)
- [o4-mini](https://tecyfy.com/prices/o4-mini.md)
- [o3-mini](https://tecyfy.com/prices/o3-mini.md)
- [GPT-4 Turbo (2024-04-09)](https://tecyfy.com/prices/gpt-4-turbo-2024-04-09.md)
- [GPT-4 (0613)](https://tecyfy.com/prices/gpt-4-0613.md)
- [GPT-3.5 Turbo](https://tecyfy.com/prices/gpt-3-5-turbo.md)
- [GPT-3.5 Turbo (0125)](https://tecyfy.com/prices/gpt-3-5-turbo-0125.md)
- [GPT-3.5 Turbo (1106)](https://tecyfy.com/prices/gpt-3-5-turbo-1106.md)
- [davinci-002](https://tecyfy.com/prices/davinci-002.md)
- [babbage-002](https://tecyfy.com/prices/babbage-002.md)