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.
Input
Output
Context
16K
Max Output
4K
Parameters
—
Input Modalities
Output Modalities
Features
| Platform | Input | Output |
|---|---|---|
OpenRouter | $0.500 | $1.50 |
Data sourced from official provider APIs and documentation
Last updated: Mar 16, 2026
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