OpenAI: GPT-3.5 Turbo 16k
Analysis Summary
GPT-3.5 Turbo 16k is an older OpenAI model offering a 16K context window, tool use, and function calling. The expanded context is useful for longer prompts and structured workflows, while the model remains suited to routine text generation, extraction, and simple API-driven automation.
That makes it serviceable for legacy content pipelines, metadata generation, classification, and basic customer-service routing. However, the available version has limited measured capability compared with current models, and its listed input and output prices are high for that level of performance. Retain it where compatibility matters, but avoid selecting it for new demanding content, coding, or agentic workflows.
Assessed September 7, 2026
Editorial notes
GPT-3.5 Turbo 16k combines basic tool use and function calling with a larger 16K context window, making it useful for legacy automation. Its high pricing and limited reasoning reduce its appeal for new deployments.
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DFO Verdict
GPT-3.5 Turbo 16k combines basic tool use and function calling with a larger 16K context window, making it useful for legacy automation. Its high pricing and limited reasoning reduce its appeal for new deployments.
How OpenAI: GPT-3.5 Turbo 16k compares
Its 16K-token context window is larger than 20% of the models we list. At $3.00 per million input tokens it is cheaper than 10% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on business fit. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $3.00 | $0.003000 |
| Output | $4.00 | $0.004000 |
What would OpenAI: GPT-3.5 Turbo 16k cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 779 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save OpenAI: GPT-3.5 Turbo 16k for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout OpenAI: GPT-3.5 Turbo 16k
This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up..
Frequently asked questions about OpenAI: GPT-3.5 Turbo 16k
How much does OpenAI: GPT-3.5 Turbo 16k cost?
OpenAI: GPT-3.5 Turbo 16k costs $3.00 per million input tokens and $4.00 per million output tokens.
What is the context window of OpenAI: GPT-3.5 Turbo 16k?
OpenAI: GPT-3.5 Turbo 16k has a context window of 16,385 tokens (16K).
What can OpenAI: GPT-3.5 Turbo 16k do?
OpenAI: GPT-3.5 Turbo 16k supports tool use and function calling.
Who created OpenAI: GPT-3.5 Turbo 16k?
OpenAI: GPT-3.5 Turbo 16k is developed by OpenAI and was released on August 28, 2023.