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OpenKey

GPT-3.5 Turbo 16k

OpenAIReleased Aug 28, 2023

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...

Try in playground
Context window
16K tokens
Max output
4K tokens
Input
text
Output
text
Tokenizer
GPT
Knowledge cutoff
Sep 30, 2021
Released
Aug 28, 2023

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$3.00$0.090$3.09
Output$4.00$0.120$4.12

Supported parameters

  • frequency_penalty
  • logit_bias
  • logprobs
  • max_completion_tokens
  • max_tokens
  • presence_penalty
  • response_format
  • seed
  • stop
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_logprobs
  • top_p

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model openai/gpt-3.5-turbo-16k.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-3.5-turbo-16k",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="openai/gpt-3.5-turbo-16k",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.openkey.ai/v1",
  apiKey: process.env.OPENKEY_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "openai/gpt-3.5-turbo-16k",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does GPT-3.5 Turbo 16k cost via API?
Through OpenKey, GPT-3.5 Turbo 16k costs $3.09 per 1M input tokens and $4.12 per 1M output tokens. That is the provider price ($3.00 / $4.00) plus a flat 3% fee — nothing else.
What is GPT-3.5 Turbo 16k's context window?
GPT-3.5 Turbo 16k accepts up to 16K tokens of context and returns up to 4K tokens per request.
Is GPT-3.5 Turbo 16k OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "openai/gpt-3.5-turbo-16k" using any OpenAI SDK — only the base URL and API key change.
What inputs does GPT-3.5 Turbo 16k support?
GPT-3.5 Turbo 16k accepts text input and produces text output. Its knowledge cutoff is Sep 30, 2021.

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