Base model

GPT-5.1 Chat

Name: GPT-5.1 Chat
Brand: OpenAI
Availability: InStock

from $1.10 at 6 providers

openai/gpt-5.1-chat-latest · 6 providers · Text models ·

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https://airatecard.com/export?format=json&model=openai%2Fgpt-5.1-chat-latest

API parameters and a form

Model	Provider	Input, $	Output, $	Your cost/mo, $	Subscription, $/mo	Region	Context	Max output	Accepts	Last checked
= GPT-5.1 Chat×	Provider 302ai 1 aihubmix 1 helicone 1 orcarouter 1 poe 1 zenmux 1				Pricing pay per use 6	Region			Input image 5 image/gif 1 image/jpeg 1 image/png 1 image/webp 1 pdf 1 text 6	Status Active 5 not confirmed lately 1
GPT-5.1-Instant GPT-5.1 Chat	poe ↗	$1.10	$9.00	—			128K	16K	multi: image, text	4 Nov 12:26
gpt-5.1-chat-latest GPT-5.1 Chat	302ai ↗	$1.25	$10.00	—			128K	16K	multi: image, text	4 Nov 12:26
GPT 5.1 Chat GPT-5.1 Chat	aihubmix ↗	$1.25	$10.00	—			128K	16K	multi: image, text	4 Nov 12:00
OpenAI GPT-5.1 Chat GPT-5.1 Chat	helicone ↗	$1.25	$10.00	—			128K	16K	multi: image, text	4 Nov 12:00
GPT-5.1 Chat GPT-5.1 Chat	orcarouter ↗	$1.25	$10.00	—			128K	16K	multi: image/gif, image/jpeg, image/png +2	4 Nov 12:26
GPT-5.1 Chat GPT-5.1 Chat	zenmux ↗	$1.25	$10.00	—			128K	64K	multi: image, pdf, text	4 Nov 12:26 not confirmed lately

Ranges in one field: "from-to" - "0.5-3", "-3" (up to), "128k-" (from); a colon works too. Several ticked values of one column are ORed, columns are ANDed.

Input price history, $/1M

Latest: minimum $1.10, median $1.25 (Nov 4, 2026)

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About the model: cost of your workload, questions, comparisons, citation

Cost of my workload → in the Tools tab: every provider of this model, cheapest first

Frequently asked questions

How much does GPT-5.1 Chat API cost?

From $1.10 input and $9.00 output per 1M tokens, at poe.

Which provider offers GPT-5.1 Chat cheapest?

poe offers the lowest price, $1.10 per 1M tokens, among 6 providers.

What is the context window of GPT-5.1 Chat?

128K tokens.

Compare

vs Claude Opus 4.5 (latest) vs Gemini 2.5 Flash vs Gemini 2.5 Pro

Source: AI Rate Card, https://airatecard.com/en/model/openai/gpt-5.1-chat-latest, prices checked 2026-11-04