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OpenKey

GPT Chat Latest

OpenAIReleased May 5, 2026

GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...

Try in playground
Context window
400K tokens
Max output
128K tokens
Input
text, image, file
Output
text
Tokenizer
GPT
Released
May 5, 2026

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$5.00$0.150$5.15
Output$30.00$0.900$30.90
Cache read$0.500$0.015$0.515

Supported parameters

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

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model openai/gpt-chat-latest.

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-chat-latest",
    "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-chat-latest",
    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-chat-latest",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does GPT Chat Latest cost via API?
Through OpenKey, GPT Chat Latest costs $5.15 per 1M input tokens and $30.90 per 1M output tokens. That is the provider price ($5.00 / $30.00) plus a flat 3% fee — nothing else.
What is GPT Chat Latest's context window?
GPT Chat Latest accepts up to 400K tokens of context and returns up to 128K tokens per request.
Is GPT Chat Latest OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "openai/gpt-chat-latest" using any OpenAI SDK — only the base URL and API key change.
What inputs does GPT Chat Latest support?
GPT Chat Latest accepts text, image, file input and produces text output.

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