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OpenAI: GPT-3.5 Turbo Instruct

This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021.

Text
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Specification
Model ID
openai/gpt-3.5-turbo-instruct
Modality
Text >text
Context
4.1K tokens
Input
$1.50/1M
Output
$2.00/1M
Updated
Sep 20, 2026
Scores
Capabilities
  • No tool calling listed
  • No vision support listed
  • Standard context workflows
  • Lighter reasoning profile

Input and output

Accepts Text inputs. Returns Text outputs.

Supported parameters

frequency_penaltylogit_biaslogprobsmax_tokenspresence_penaltyresponse_formatseedstopstructured_outputstemperaturetop_logprobstop_p

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