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GPT-3.5 Turbo Instruct

OpenAI model, released 28 Sept 2023.

$1.50
per 1M input tokens
$2.00
per 1M output tokens
per 1M cached-read tokens
Calculate what your real prompts cost on GPT-3.5 Turbo Instruct

Price history

Price stable since we started tracking (7 Jul 2026). History will chart here as soon as it moves.

Specifications

Lab
OpenAI
Released
28 Sept 2023
Context window
4k tokens
Max output
4k tokens
Input modalities
text
Output modalities
text
Knowledge cutoff
2021-09-30
Open source
No

Frequently asked questions

How much does GPT-3.5 Turbo Instruct cost?

GPT-3.5 Turbo Instruct costs $1.50 per 1M input tokens and $2.00 per 1M output tokens (list price, updated every 6 hours).

What is GPT-3.5 Turbo Instruct's context window?

GPT-3.5 Turbo Instruct supports a 4k-token context window with up to 4k output tokens.

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GPT-3.5 Turbo Instruct — API Pricing, Context Window, Specs (2026) | AIToolScout | AIToolScout