How much does GPT-5.6 Luna cost?

GPT-5.6 Luna costs $0.20 per million input tokens and $1.20 per million output tokens. For a typical conversation (~2,000 tokens), that's approximately $0.002 per message.

What benchmarks has GPT-5.6 Luna been tested on?

GPT-5.6 Luna has not been benchmarked yet. Scores are added as benchmarks are published.

Is GPT-5.6 Luna open source?

No, GPT-5.6 Luna is a proprietary model by OpenAI.

How does GPT-5.6 Luna compare to GPT-4o Audio?

GPT-5.6 Luna has an average score of 0.0 while GPT-4o Audio scores 0.0. GPT-4o Audio slightly outperforms GPT-5.6 Luna overall. GPT-5.6 Luna costs $0.20/1M input vs GPT-4o Audio at $2.50/1M input. See full comparison →

Home/Models/GPT-5.6 Luna

GPT-5.6 Luna

Name: GPT-5.6 Luna
Price: 0.2 USD
Author: OpenAI

by OpenAI · Released Jul 2026

Multimodal1M Context

Compare

Context

1.1M tokens (~525 books)

Input $/1M

$0.20

Output $/1M

$1.20

Type

multimodal

License

Proprietary

Benchmarks

0 tested

Data updated today

About

GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...

No benchmark data available yet.

Model Family · OpenAI GPT-5.6

GPT-5.6 LunaJul 2026

$1.00/M in1.1Mctx

GPT-5.6 Luna ProJul 2026

$1.00/M in1.1Mctx

GPT-5.6 SolJul 2026

$5.00/M in(+4)1.1Mctx

GPT-5.6 Sol ProJul 2026

$5.00/M in1.1Mctx

GPT-5.6 TerraJul 2026

$2.50/M in(-2.50)1.1Mctx