All OpenAI models
GPT-3.5 Turbo 16k
OpenAI · released August 2023
GPT-3.5 Turbo 16k is a OpenAI model with a 16K token context window — about 23 pages of text. It reads Text and replies in Text.
$3.45
input / 1M tokens
$4.60
output / 1M tokens
16K
context — about 23 pages
2.1¢
a client proposal
Pricing
Input
$3.45 per million tokens
Output
$4.60 per million tokens
Billed from your Alyph wallet. Prices can change when the provider changes theirs — last checked August 9, 2026.
The numbers
Provider
Released
August 2023 (2023-08-28)
Context window
16K tokens — about 23 pages
Max output
4K tokens per reply
Input
Text
Output
Text
Reasoning
Answers directly
Knowledge cutoff
2021-09-30
Cost vs Token Amount
Drag the slider to adjust the split between input and output workload.
80% Input20% Output
GPT-3.5 Turbo 16k
Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.
What a task costs
2K tokens in · 500 tokens out.
Your $5 welcome credit covers about 543 of these.
Compare GPT-3.5 Turbo 16k
Closest in price on a typical task:
GPT-3.5 Turbo 16k vs Claude Sonnet 5 →GPT-3.5 Turbo 16k vs Magnum v4 72B →GPT-3.5 Turbo 16k vs Gemini 3.1 Pro Preview →GPT-3.5 Turbo 16k vs Gemini 3.1 Pro Preview Custom Tools →Any other combination →
Questions, answered
How much does GPT-3.5 Turbo 16k cost on Alyph?
GPT-3.5 Turbo 16k costs $3.45 per million input tokens and $4.60 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about 2.1¢. Billed from your Alyph wallet, with hard spending limits. Prices can change when the provider changes theirs; this page was last checked on August 9, 2026.
What is GPT-3.5 Turbo 16k's context window?
16K tokens — about 23 pages. Replies can be up to 4K tokens long.
Can GPT-3.5 Turbo 16k read images and files?
GPT-3.5 Turbo 16k is text-only. The canvas still serializes uploads into plain text, so you can work with files — but it cannot see images.
Does GPT-3.5 Turbo 16k show its reasoning?
No — GPT-3.5 Turbo 16k answers directly, without a visible thinking pass.
Test GPT-3.5 Turbo 16k against Claude Sonnet 5
One prompt, both models at the same time, the better answer wins. Free to start, with $5 of credit.