OpenAI: GPT-3.5 Turbo✓ Catalog verified
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.
Overview
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.
Access: available through the official OpenAI API. Context window: 16K.
Specifications
| API identifier | openai/gpt-3.5-turbo |
| Provider | OpenAI |
| Model type | Text LLM |
| Context window | 16K catalog |
| Input modalities | text |
| Output modalities | text |
| Released | May 28, 2023 |
| Tokenizer | GPT |
| Moderated | Yes |
| Architecture modality | text->text |
Pricing
Live pricing components for openai/gpt-3.5-turbo as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $5e-7 | $0.50 / 1M | Per input token |
| Completion tokens | $0.0000015 | $1.50 / 1M | Per output token |
| Request fee | N/A | N/A | Per request |
| Image fee | N/A | N/A | Per image unit |
| Web search fee | N/A | N/A | Per search request |
Cost calculator
Estimate monthly spend from your own token volumes.
Estimated Total Cost
$0.55Calculated from current list pricing in the ModelsAtlas catalog.Capabilities
| Capability | Status | What it means |
|---|---|---|
| Visual Understanding | Not advertised | Image and document analysis support |
| Audio Processing | Not advertised | Speech and voice aligned flows |
| Tool Calling | ✓ Supported | Supports tools / function calling |
| Self-Hosting | Not advertised | Deploy outside managed APIs |
Capability signals
Directional signals derived from model metadata and capability tags — not official benchmark submissions.
Quick start
Call OpenAI: GPT-3.5 Turbo through an OpenAI-compatible client.
from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_API_KEY"
)
response = client.chat.completions.create(
model="openai/gpt-3.5-turbo",
messages=[{"role": "user", "content": "Explain quantum physics."}]
)
print(response.choices[0].message.content)Alternatives
Closest models by context window from a different provider.
| Model | Provider | Context | Input /1M | Actions |
|---|---|---|---|---|
| Magnum v4 72B | Anthracite Org | 16K | $3.00 | View → |
| meta-llama/Llama-3.1-8B-Instruct | Meta | 16K | $0.02 | View → |
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does OpenAI: GPT-3.5 Turbo cost?
$0.50 per 1M input tokens and $1.50 per 1M output tokens on the official OpenAI API.
What is the context window of OpenAI: GPT-3.5 Turbo?
OpenAI: GPT-3.5 Turbo supports up to 16K tokens of context.
Does OpenAI: GPT-3.5 Turbo support tool / function calling?
Yes, OpenAI: GPT-3.5 Turbo supports tool / function calling — you can register tools and the model will emit structured tool calls.
How do I access OpenAI: GPT-3.5 Turbo?
Use the official OpenAI API with the model id `openai/gpt-3.5-turbo`. See the Quick start section above for code examples.