GPT Chat Latest

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. As OpenAI rolls out new Instant model updates...

InputFileImageText
OutputText
Input / Outputclub$5.3 / $31.8per 1M tokens · USD
Context window400Ktoken
Maximum output128Ktoken

Pricing

Current model usage rates. Choose your plan to see its published prices.

Pricing
UsagePricing
InputUS$5.3/ 1M token
Cache readUS$0.53/ 1M token
OutputUS$31.8/ 1M token

Membership and model usage are billed separately. Compare plans

Capabilities

Input
FileImageText
Output
Text
Context window
400,000 token
Maximum output
128,000 token

Providers

Model supply available through Vecbase.

Via OpenRouter

Access is subject to your account’s permissions and model availability.

Frequently asked questions

What is GPT Chat Latest, and who develops it?

GPT Chat Latest is a model from OpenAI. Its model ID on Vecbase is 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. As OpenAI rolls out new Instant model updates...

How much does GPT Chat Latest cost on Vecbase?

For GPT Chat Latest, the Club plan lists USD 5.3 per 1 million input tokens and USD 31.8 per 1 million output tokens, as of 10/22/2026, 9:26:00 PM UTC. See the pricing table for cache rates, input-length tiers and other usage types. Membership fees are separate.

How many tokens fit in GPT Chat Latest’s context window?

GPT Chat Latest has a context window of 400,000 tokens. Input and output must fit within the limits of the API you use.

What is the maximum output length for GPT Chat Latest?

GPT Chat Latest can generate up to 128,000 tokens per response. Your API or request settings may set a lower limit.

Can GPT Chat Latest call tools in an agent workflow?

Yes. GPT Chat Latest supports tool calling. Your application provides the tool definitions and runs the tools the model requests.

Does GPT Chat Latest support structured outputs?

Yes. GPT Chat Latest supports structured output. Set the required format in your API request and check the returned data before using it.

Which input and output formats does GPT Chat Latest support?

GPT Chat Latest accepts File, Image, and Text and produces Text.

Which providers make GPT Chat Latest available through Vecbase?

Vecbase offers GPT Chat Latest through OpenRouter. Availability may vary by provider.

Which model ID should an agent use to request GPT Chat Latest?

Use openai/gpt-chat-latest as the model identifier for GPT Chat Latest. See Vecbase’s API documentation for authentication, required inputs and supported request formats.

What does an agent need to access GPT Chat Latest through Vecbase?

To use GPT Chat Latest, you need an authenticated account with the required permissions, sufficient balance and the relevant capability enabled. See the documentation for setup.

Is a release date available for GPT Chat Latest?

We do not yet have a confirmed release date for GPT Chat Latest.

Which models can I compare with GPT Chat Latest on Vecbase?

You can compare GPT Chat Latest with GPT Mini Latest (openai/gpt-mini-latest), GPT-5.5 (openai/gpt-5.5), and GPT-5.6 Luna (openai/gpt-5.6-luna). Check their capabilities and prices to find the best fit for your task.