OpenAI: GPT Chat Latest

Not supportedQuick start

GPT Chat Latest is an alias that tracks OpenAI's newest Instant chat model, released 2026-05. It automatically resolves to the latest Instant model used in ChatGPT, so applications built on this endpoint receive updates without code changes.

MirAPI doesn’t offer this model. The prices shown are the official list prices.

Modalities
inTextinImageinFileoutText
Price / 1M
$5.00 / $30.00
Context
400K
Released
May 5, 2026

Capabilities

VisionTool useLong contextPrompt cachingStructured output

Parameters

Request parameters this model accepts through the API.

max_tokensresponse_formatseedstructured_outputstool_choicetools

Showcase

Every chat model gets the same three fixed prompts. Outputs are archived verbatim, so you can copy a prompt and reproduce the result.

Task prompt · identical for all models
Build a single-file HTML page using three.js from a CDN: a low-poly planet with a tilted ring of ~200 orbiting particles, a soft key light plus rim light, slow auto-rotation, and drag-to-orbit controls. No build tools — one file only.
Archived output
Archive not published yet

Every model will run this exact prompt, and its output will appear here verbatim with token counts and the cost per run.

Quick start

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.mirapi.ai/v1",   # changed
    api_key=os.environ["MIRAPI_API_KEY"],   # changed
)

resp = client.chat.completions.create(
    model="",
    messages=[{"role": "user", "content": "Hello"}],
)
Wire GPT Chat Latest into your product

1M free tokens to start, no card required. It’s OpenAI-compatible, so you only change the base URL.

Start free