GPT Chat Latest

Name: OpenAI: GPT Chat Latest
Brand: openai
SKU: openai/gpt-chat-latest
Price: 5.5 USD
Availability: InStock

openai/gpt-chat-latest

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

$5.50 in · $33.00 out per 1M tokens400k contextMay 5, 2026

about 1.9¢ a message

A typical message: about 500 tokens you send and 500 it writes.

Chat with GPT Chat Latest

Call it from code Lock this price

Spec sheet

Published facts from the catalog, billed prices and what we measured here. Anything not measured says so.

Price, billed here

Input, per 1M tokens: $5.50provider $5.00
Output, per 1M tokens: $33.00provider $30.00
Cached input, per 1M: $0.55provider $0.50
Margin: +10%

Context and formats

Context window: 400,000 tokens
Longest answer: 128,000 tokens
Reads: text, images, and files
Makes: text
First listed: 2026-05-05

Measured here, last 7 days

First token, median: not measured
Answered without error: not measured

Tools and JSON

Tool calling: declaredthe provider's claim, not yet measured here
JSON output: declaredthe provider's claim, not yet measured here

Price and latency history as JSON: GET /api/planet/history?id=openai/gpt-chat-latest.

About

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...

In OpenAI's words.

Try it here

Cmd+Enter sends

The answer appears here.

Measured here

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Call it

Use one OpenAI compatible endpoint, this model's id and an am_live_ key from the dashboard. You can also try it in chat first with no key.

curl https://useantimatter.com/v1/chat/completions \
  -H "Authorization: Bearer $ANTIMATTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "openai/gpt-chat-latest", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

Embed this

A badge showing this model's live price per million tokens, as billed here, for a README or a site. It links back to this page.

<a href="https://useantimatter.com/planet/openai/gpt-chat-latest"><img src="https://useantimatter.com/api/badge/price?id=openai%2Fgpt-chat-latest" alt="GPT Chat Latest price on Antimatter" height="28"></a>

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