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OpenAI: GPT-3.5 Turbo

GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.

Text
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Specification
Model ID
openai/gpt-3.5-turbo
Modality
Text >text
Context
16.4K tokens
Input
$0.500/1M
Output
$1.50/1M
Updated
Sep 20, 2026
Scores
Capabilities
  • Supports tool calling
  • 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_outputstemperaturetool_choicetoolstop_logprobstop_p

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