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GPT 5.6 Luna

GPT-5.6 Luna is a fast, affordable GPT-5.6 model that brings strong capability at the lowest cost in the series.

ReasoningFile InputTool UseVision (Image)Implicit CachingWeb Search
index.ts
import { streamText } from 'ai'
const result = streamText({
model: 'openai/gpt-5.6-luna',
prompt: 'Why is the sky blue?'
})

Providers

Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.

Provider
Context
Latency
Throughput
Input
Output
Cache
Web Search
Per Query
Capabilities
ZDR
No Training
Release Date
OpenAI
Legal:Terms
Privacy
1.1M
1.3s
136tps
$1.00/M
$6.00/M
Read:
$0.1/M
Write:
$1.25/M
$10.00/K
+ input costs
+4
07/09/2026