Gpt 5.6 Luna

Name: Gpt 5.6 Luna
Author: Perplexity

proprietary

GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly corresponds to the nano model tier used in earlier GPT-5 families. Reasoning.effort supports: none, low, medium (default), high, xhigh, and max.

Intelligence

Reasoning

Speed

Context

1.1M

Max output

128K

Input price

$0.2/1M tokens

Output price

$1.2/1M tokens

Capabilities

Show unsupported (2)

Reasoning & Interaction

Reasoning

Tool Calling

Output Control

Structured Output

JSON Mode

Infrastructure

Streaming

Batch Processing

Details

Model IDopenai/gpt-5.6-luna

ProviderPerplexity

CreatorOpenAI

Familygpt-5.6

Licenseproprietary

Statusactive

Typechat

Input modalitiestext

Output modalitiestext

Open weightNo

Parameters—

Architecture—

Context window1.1M tokens

Max input922K tokens

Max output128K tokens

Reasoning tokensYes

Knowledge cutoff2026-02

Release date—

Sourceofficial

Pricing

Input

$0.2

Output

$1.2

Cache write

—

Cache read

$0.02

Batch in

—

Batch out

—

Input: 0.20 (≤272k) 0.40 (>272k); Output: 1.20 (≤272k) 1.80 (>272k) per 1M tokens.

Family Comparison: gpt-5.6

Model	Caps	Perf	Speed	Context	Max out	Pricing
Gpt 5.6 Luna	RTJJMSB	—	—	1.1M	128K	$0.2$1.2
Gpt 5.6 Terra	RTJJMSB	—	—	1.1M	128K	$2$12
Gpt 5.6 Sol	RTJJMSB	—	—	1.1M	128K	$4$20

API

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