Home / OpenAI / GPT 3.5 Turbo Instruct
GPT 3.5 Turbo Instruct API price
openai/gpt-3.5-turbo-instruct
The cheapest GPT 3.5 Turbo Instruct API is $1.50/M input at Official - OpenAI - all 2 providers compared below, per 1M tokens.
MidOpenAI4K context2 sellers
Input
$1.50
per 1M tokens · Official - OpenAI
Output
$2.00
per 1M tokens · Official - OpenAI
Where to buy it
Cheapest GPT 3.5 Turbo Instruct API providers compared - 2 sellers, from $1.50/M.
Cost calculator
| Provider | Input $/M | Output $/M | Your cost |
|---|---|---|---|
| Official - OpenAI | 1.50cheapest | 2.00 | |
| OpenRouter (aggregator) | 1.50 | 2.00 |
Against its tier
- This model$3.50
- Cheapest · Nemotron 3.5 Content Safety$0.40
- Tier median · GLM 5.1$4.002
- Dearest · GPT 5.5 Cyber$87.50
#16 of 36 mid · cheaper than 57%
Details
- Context window
- 4K4,095 tokens
- Developer
- OpenAI
- Sellers
- 2
- Cheapest at
- Official - OpenAI
- Combined
- $3.50in + out per 1M
- Last checked
- 2026-10-12