prices synced 2026-09-11

GPT-3.5 Turbo Instruct

OpenAI · Released Sep 2023

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GPT-3.5 Turbo Instruct is OpenAI's instruction-tuned variant of GPT-3.5 Turbo, designed for following explicit directives rather than conversational chat.

Strengths
It excels at single-turn instruction following and generates structured outputs when given clear task specifications without needing conversation-style prompting.
Best for
Workloads requiring direct command execution, form filling, and templated text generation where conversational context is not needed.
Limitations
With only a 4K token context window, it cannot handle long documents or extensive conversation histories; for larger contexts or chat-based interactions, GPT-3.5 Turbo 16k or later models are better suited.

Input / 1M

$1.50

Output / 1M

$2.00

Cached input / 1M

Context window

4K

Price history

Price per 1M tokens over timeOutput $2.00; Input $1.50 as of Jun 2026.$0$0.5$1.00$1.50$2.00Output on 11 Jun 2026: $2.00Out $2.00Input on 11 Jun 2026: $1.50In $1.50Jun 2026

Snapshots

Effective Input Output Cached in Note Source
11 Jun 2026 $1.50 $2.00 Imported from OpenRouter openrouter.ai

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