GPT-3.5 Turbo Instruct
Legacy
Completion-style GPT-3.5 ("instruct"). Retired, use chat completions on a current model.
GPT-3.5 Turbo Instruct is a efficient AI model from OpenAI. It costs $1.500 per million input tokens and $2.000 per million output tokens (blended $1.650/M), with a 4,000-token context window.
INPUT
$1.500/M
per million input tokens
OUTPUT
$2.000/M
per million output tokens
CONTEXT
4,000
tokens
Benchmarks
No published benchmark scores tracked for this model yet. Frontier and reasoning models from major providers have scores; smaller models and inference-host variants typically inherit the underlying open-weights score.
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Frequently asked questions
How much does GPT-3.5 Turbo Instruct cost?
GPT-3.5 Turbo Instruct costs $1.500 per million input tokens and $2.000 per million output tokens, for a blended reference rate of $1.650 per million tokens.
What is GPT-3.5 Turbo Instruct's context window?
GPT-3.5 Turbo Instruct supports up to 4,000 tokens of context in a single request.
What is GPT-3.5 Turbo Instruct best for?
Completion-style GPT-3.5 ("instruct"). Retired, use chat completions on a current model.
Who makes GPT-3.5 Turbo Instruct?
GPT-3.5 Turbo Instruct is developed and served by OpenAI.