GPT-3.5 Turbo

OpenAI

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.

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Capabilities

Tool Use

Technical Specifications

Context Window

16,385 tokens

Max Output

4,096 tokens

Pricing

Token Costs (per 1M tokens)

Cache Miss Input

$0.50

Non-Reasoning Output

$1.50

Tool Costs (per 1K calls)

Web Search

$15

Code Execution

$0.19

Legacy

Made legacy on

Reason

Two generations behind; 16K context and no vision

Recommended Replacement

GPT-5.5