Gpt 5.6 Luna

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

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDopenai/gpt-5.6-luna
Provider Perplexity
Creator OpenAI
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 cutoff
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

ModelContextMax outPricing
Gpt 5.6 Luna1.1M128K$0.2$1.2
Gpt 5.6 Terra1.1M128K$2$12
Gpt 5.6 Sol1.1M128K$4$20

API

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

Gpt 5.6 Luna

openai/gpt-5.6-luna

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.

Changes · 5 entries
openai/gpt-5.6-lunacreateca7a400Nov 2, 2026, 03:02 AM
openai/gpt-5.6-lunaupdateb2f45bfOct 29, 2026, 03:29 AM
nameopenai/gpt-5.6-luna→Gpt 5.6 Luna
pricing_notes["Input ranges $0.2 to $0.4, output ranges $1.2 to $1.8 p...→["Input: 0.20 (≤272k) 0.40 (>272k); Output: 1.20 (≤272k) ...
openai/gpt-5.6-lunaupdate0ed066aJul 31, 2026, 11:38 AM
pricinginput$1→$0.2output$6→$1.2cached input$0.1→$0.02
pricing_notes["Input ranges $1 to $2, output ranges $6 to $9 per 1M to...→["Input ranges $0.2 to $0.4, output ranges $1.2 to $1.8 p...
openai/gpt-5.6-lunaupdatec67ed84Jul 31, 2026, 10:28 AM
pricinginput$1output$6cached input$0.1
pricing_notes["Input ranges $1 to $2, output ranges $6 to $9 per 1M to...
openai/gpt-5.6-lunacreatebbbc783Jul 12, 2026, 07:45 AM