API host · catalogue checked 27 Oct 2026

OpenAI: models, prices and uptime

OpenAI serves 11 of the 78 models we benchmark through OpenRouter, 2 of them on no other host. Prices are OpenRouter's list prices per million tokens. We did not measure speed per host.

Models served11of 78 we test

Cheapest host for9of 9 shared models

Median premiumCheapestover the cheapest host

Uptime82.7%last 30 min, average

Most accurate models on OpenAI

Verification score of each model this host serves

1GPT-5.3-CodexOpenAI82.5%
2GPT-6 AstraOpenAI76.2%
3GPT-6.1 Terra ProOpenAI76.2%
4GPT-6.1 SolOpenAI76.2%
5GPT-5.6 TerraOpenAI75.0%
6GPT-6.1 TerraOpenAI73.8%
7GPT-6 SolOpenAI73.8%
8o3OpenAI72.5%
9GPT-5.4OpenAI72.5%
10GPT-6 LunaOpenAI72.5%

Models on OpenAI

Premium: this host's blended price (3 input : 1 output) against the cheapest host for the same model

Model	Score	Input / 1M	Output / 1M	vs cheapest host	Hosts	Context	Max output	Quantization	Uptime
GPT-5.3-Codex	82.5%	$1.75	$14	Cheapest	2	400k	128k	—	100%
GPT-6 Astra	76.2%	$5	$25	Cheapest	3	1.1M	128k	—	100%
GPT-6.1 Terra Pro	76.2%	$0.5	$2.5	Cheapest	2	1.1M	128k	—	100%
GPT-6.1 Sol	76.2%	$1	$5	Cheapest	3	1.1M	128k	—	26.7%
GPT-5.6 Terra	75.0%	$1	$6	Cheapest	3	1.1M	128k	—	100%
GPT-6.1 Terra	73.8%	$0.5	$2.5	Cheapest	2	1.1M	128k	—	100%
GPT-6 Sol	73.8%	$1	$5	Cheapest	3	1.1M	128k	—	100%
o3	72.5%	$2	$8	Only host	1	200k	100k	—	100%
GPT-5.4	72.5%	$1.25	$7.5	Cheapest	3	1.1M	128k	—	0.0%
GPT-6 Luna	72.5%	$0.05	$0.25	Cheapest	3	1.1M	128k	—	100%
GPT-5.5 Pro	—	$15	$90	Only host	1	1.1M	128k	—	—

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OpenAI: frequently asked questions

Which AI models does OpenAI serve?: Of the models we benchmark, OpenAI serves 11 through OpenRouter: GPT-5.3-Codex, GPT-6 Astra, GPT-6.1 Terra Pro, GPT-6.1 Sol, GPT-5.6 Terra, GPT-6.1 Terra, GPT-6 Sol, o3, GPT-5.4, GPT-6 Luna, GPT-5.5 Pro.
What is the most accurate model on OpenAI?: GPT-5.3-Codex by OpenAI, with a verification score of 82.5% (66 of 80 questions correct) in our tests.
Is OpenAI the cheapest host?: OpenAI has the lowest list price for 9 of the 9 models it serves that other hosts also serve (GPT-5.3-Codex, GPT-6 Astra, GPT-6.1 Terra Pro, GPT-6.1 Sol, GPT-5.6 Terra, GPT-6.1 Terra, GPT-6 Sol, GPT-5.4, GPT-6 Luna). Its median markup over the cheapest host is Cheapest.
How reliable is OpenAI?: Averaged over the models it serves, OpenAI reported 82.7% uptime in the 30 minutes before OpenRouter's catalogue was read for our run.

Model

Score

Input / 1M

Output / 1M

vs cheapest host

Hosts

Context

Max output

Quantization

Uptime

GPT-5.3-Codex

82.5%

$1.75

$14

Cheapest

400k

128k

—

100%

GPT-6 Astra

76.2%

$25

Cheapest

1.1M

128k

—

100%

GPT-6.1 Terra Pro

76.2%

$0.5

$2.5

Cheapest

1.1M

128k

—

100%

GPT-6.1 Sol

76.2%

Cheapest

1.1M

128k

—

26.7%

GPT-5.6 Terra

75.0%

Cheapest

1.1M

128k

—

100%

GPT-6.1 Terra

73.8%

$0.5

$2.5

Cheapest

1.1M

128k

—

100%

GPT-6 Sol

73.8%

Cheapest

1.1M

128k

—

100%

72.5%

Only host

200k

100k

—

100%

GPT-5.4

72.5%

$1.25

$7.5

Cheapest

1.1M

128k

—

0.0%

GPT-6 Luna

72.5%

$0.05

$0.25

Cheapest

1.1M

128k

—

100%

GPT-5.5 Pro

—

$15

$90

Only host

1.1M

128k

—

OpenAI: frequently asked questions

Which AI models does OpenAI serve?

Of the models we benchmark, OpenAI serves 11 through OpenRouter: GPT-5.3-Codex, GPT-6 Astra, GPT-6.1 Terra Pro, GPT-6.1 Sol, GPT-5.6 Terra, GPT-6.1 Terra, GPT-6 Sol, o3, GPT-5.4, GPT-6 Luna, GPT-5.5 Pro.

What is the most accurate model on OpenAI?

GPT-5.3-Codex by OpenAI, with a verification score of 82.5% (66 of 80 questions correct) in our tests.

Is OpenAI the cheapest host?

OpenAI has the lowest list price for 9 of the 9 models it serves that other hosts also serve (GPT-5.3-Codex, GPT-6 Astra, GPT-6.1 Terra Pro, GPT-6.1 Sol, GPT-5.6 Terra, GPT-6.1 Terra, GPT-6 Sol, GPT-5.4, GPT-6 Luna). Its median markup over the cheapest host is Cheapest.

How reliable is OpenAI?

Averaged over the models it serves, OpenAI reported 82.7% uptime in the 30 minutes before OpenRouter's catalogue was read for our run.