gpt-5.6-luna

Name: gpt-5.6-luna
Author: Vercel AI Gateway

proprietary

Intelligence

Reasoning

Speed

Context

1.1M

Max output

128K

Input price

$0.2/1M tokens

Output price

$1.2/1M tokens

Capabilities

vision

tool call

structured output

reasoning

json mode

streaming

fine tuning

batch

Details

ProviderVercel AI Gateway

CreatorOpenAI

Familygpt-5.6

Licenseproprietary

Parameters—

Statusactive

Input modalitiestext

Output modalitiestext

Architecture—

Knowledge cutoff2026-02

Training data cutoff—

Release date—

Deprecation date—

Typechat

Reasoning tokensYes

Max input922K tokens

Open weightNo

Sourceofficial

Last updated2026-07-31

Tools

Function Callingfunction_calling

Call external functions and APIs

Pricing

Input

$0.2

↓80%$1

Output

$1.2

↓80%$6

Cache write

—

Cache read

—

Batch in

—

Batch out

—

Price history · $/1M input

$0.2

Jul 10Jul 31

Date	Input	Output	Change
Jul 10, 2026	$1	$6	—
Jul 31, 202639b8745	$0.2	$1.2	↓80%

Input is ↓80% since Jul 10, 2026, from $1 to $0.2 per 1M tokens.

Price across providers

Provider	Input	Output	Since launch
OpenRoutercheapest	$0.1	$0.6	↓90%
Cursor	$0.2	$1.2	—
OpenAI	$0.2	$1.2	↓80%
Perplexity	$0.2	$1.2	↓80%
Vercel AI Gateway	$0.2	$1.2	↓80%

Family Comparison: gpt-5.6

Model	Caps	Perf	Speed	Context	Max out	Pricing
gpt-5.6-luna	RVTS	—	—	1.1M	128K	$0.2$1.2
gpt-5.6-terra	RVTS	—	—	1.1M	128K	$2$12
gpt-5.6-sol	RVTS	—	—	1.1M	128K	$5$30

API

GET/v1/models/vercel/openai/gpt-5.6-luna