Model Price Index
Updated 2026-07-14 · Changelog

GPT-5.6 Luna

OpenAI

Cost-efficient GPT-5.6-class model for high-volume, latency-sensitive tasks

$1.00

Input

$6.00

Output

per 1M tokens
272K input tokens

Above 272K input tokens per request: $2.00 in / $9.00 out. Cache and batch rates step at the same bracket.

Ratesper 1M tokens

GPT-5.6 Luna pricing by input token bracket
Rate≤272K>272K
Standard Input$1.00$2.00
Standard Output$6.00$9.00
Cache Read$0.10$0.20
Cache Write$1.25$2.50
Batch Input$0.50$1.00
Batch Output$3.00$4.50

Bracket is selected by input tokens per request.

Estimate Your Monthly Cost

A request with input and output tokens, requests / month at a % cache hit rate $190.00/mo≤272K rate

Compare all models at this workload →

Per-request input tokens select the bracket. Excludes cache writes and batch discounts.

Specifications

API Model IDgpt-5.6-luna
Context Window1.05M tokens

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