OpenAI: GPT-3.5 Turbo Instruct

Pricing, context window and lifecycle for openai/gpt-3.5-turbo-instruct, tracked from what the vendor publishes.

2026-09-28 - this model has a published shutdown date. If your product calls it, you have a migration deadline.

To find every place that calls it before then:

curl -sO https://neosignal-ai.vercel.app/check.py
python check.py .

It names every model your repository calls that is already gone, and exits non-zero so the next one fails the build instead of production.

Price per million tokens

Input$1.50
Output$2.00

Facts

Model IDopenai/gpt-3.5-turbo-instruct
VendorOpenAI
Context window4,095 tokens
Knowledge cutoff2021-09-30
End of life2026-09-28
Date fromvendor deprecation page

Supported parameters

frequency_penalty, logit_bias, logprobs, max_tokens, presence_penalty, response_format, seed, stop, structured_outputs, temperature, top_logprobs, top_p

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