GPT-3.5 Turbo

OpenAI · Released May 2023 · Knowledge cutoff September 2021

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.

It is part of OpenAI's GPT family, where Sol, Luna and Terra mark the current generation's capability tiers and Pro servings trade speed for deeper computation.

Facts and pricing

Provider

OpenAI

Context window

16K tokens

Input price

5.5 credits / 1M tokens ($0.50 raw)

Output price

16.5 credits / 1M tokens ($1.50 raw)

Vision (image input)

No

Tool calling

Yes

Extended reasoning

No

Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.10x margin. Raw prices shown per 1M tokens.

Try GPT-3.5 Turbo now

What GPT-3.5 Turbo is best for

• High-volume everyday tasks where speed and cost matter: summaries, drafts, quick questions
• Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows

Example prompts

Prompts that suit a fast and light model like GPT-3.5 Turbo:

• Summarize this article in five bullet points
• Rewrite this email to be shorter and friendlier
• Give me ten name ideas for a hiking newsletter
• Translate this paragraph to Spanish and keep the tone

OpenAI family

All 68 OpenAI models

Frequently asked questions

What is GPT-3.5 Turbo?

GPT-3.5 Turbo is an AI model by 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. Training data up to Sep 2021.

How much does GPT-3.5 Turbo cost on Zeplik?

Input tokens cost 5.5 credits per million and output tokens 16.5 credits per million (1 credit = $0.10; the raw provider rates are $0.50 and $1.50 per million). New accounts start with free credits.

How long can a conversation with GPT-3.5 Turbo be?

GPT-3.5 Turbo has a 16K-token context window (16,385 tokens), which covers the conversation plus any documents you attach.

Does GPT-3.5 Turbo support images and tools?

GPT-3.5 Turbo is text-only and supports tool calling.

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