OpenAIPaidOperational

GPT 5.1 Chat Latest

API model name: gpt-5.1-chat-latest

GPT 5.1 Chat Latest is OpenAI's chat model, served on the Api.Airforce unified API. Capabilities include Reasoning. It is priced at $1.63 per million input tokens and $13.00 per million output tokens. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.

Pricing

Input / 1M tokens
$1.63
Output / 1M tokens
$13.00
Cache read / 1M tokens
$0.17

Specifications

Provider
OpenAI
Type
chat model

Capabilities

Reasoning

What is GPT 5.1 Chat Latest used for?

  • Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
  • Complex reasoning — math, coding and step-by-step problem solving.

GPT 5.1 Chat Latest vs. similar models

ModelIntelligenceContextInput / 1MOutput / 1M
GPT 5.1 Chat Latest$1.63$13.00
Chatgpt 4o Latest$0.98$2.93
Codex Auto Review$0.33$1.99
Davinci 002$5.73$5.73

Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.

Related models

GPT 5.1 Chat Latest — frequently asked questions

How much does GPT 5.1 Chat Latest cost?
GPT 5.1 Chat Latest is billed pay-as-you-go at $1.63 per 1M input tokens and $13.00 per 1M output tokens. There is no subscription — you only pay for what you use.
What can GPT 5.1 Chat Latest do?
GPT 5.1 Chat Latest supports Reasoning.
Is GPT 5.1 Chat Latest free to use?
GPT 5.1 Chat Latest is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
How do I use GPT 5.1 Chat Latest via the API?
GPT 5.1 Chat Latest is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID gpt-5.1-chat-latest with your Api.Airforce API key.
Who makes GPT 5.1 Chat Latest?
GPT 5.1 Chat Latest is OpenAI's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.