LLM API PricesUpdated 2026-08-28 05:27:58 UTC

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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.

ProviderInput $/MOutput $/M
Official - OpenAI1.50cheapest2.00
OpenRouter (aggregator)1.502.00

Against its tier

#16 of 33 mid · cheaper than 53%

Details

Context window
4K4,095 tokens
Developer
OpenAI
Sellers
2
Cheapest at
Official - OpenAI
Combined
$3.50in + out per 1M
Last checked
2026-08-28

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