OpenAIReleased on Jul 9, 2026

GPT-5.6 Luna: Benchmarks, Pricing & Context Window

GPT-5.6 Luna is a language model from OpenAI, released in July 2026, with multimodal input.

GPT-5.6 Luna is the fastest and most cost-efficient tier of OpenAI's GPT-5.6 family, designed for cost-sensitive, high-volume workloads. It brings strong capability at OpenAI's lowest GPT-5.6 price, supports max reasoning effort, and has a

Input
TextImage
Output
Text
Speed
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Cost
$1.56/ 1M · 8:1 in:out
$1.00 in · $6.00 out

GPT-5.6 Luna pricing

Providers

GPT-5.6 Luna starts at $1.00 per million input tokens and $6.00 per million output tokens via OpenAI.

ProviderInput $/MOutput $/MMax InputMax OutputLatency p95 sThroughput P95QuantInputOutput
OpenAI logoOpenAI
$1.00$6.001.1M128.0K
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GPT-5.6 Luna API

API access coming soon

GPT-5.6 Luna will be available through our gateway shortly.

GPT-5.6 Luna examples

Recent arena outputs from GPT-5.6 Luna, picked from the highest-ranked matchups.

GPT-5.6 Luna license

GPT-5.6 Luna is released under the Proprietary license, which restricts commercial use, has a knowledge cutoff of February 2026.

License
Proprietary
Non-commercial
Knowledge cutoff
February 2026

Proprietary license - usage restrictions apply

FAQ

Common questions about GPT-5.6 Luna.

When was GPT-5.6 Luna released?

GPT-5.6 Luna was released on July 9, 2026 by OpenAI. This is the official GPT-5.6 Luna release date tracked on LLM Stats.

Is GPT-5.6 Luna available via API?

Yes, GPT-5.6 Luna is available via API. See the official documentation for authentication and endpoint details. It is served by 1 provider tracked on LLM Stats.

Who created GPT-5.6 Luna?

GPT-5.6 Luna was created by OpenAI.

What is the license for GPT-5.6 Luna?

GPT-5.6 Luna is released under the Proprietary license.

What is the knowledge cutoff date for GPT-5.6 Luna?

GPT-5.6 Luna has a knowledge cutoff of February 2026, meaning it was trained on data up to that point and may not know about events after it.

Is GPT-5.6 Luna multimodal?

Yes, GPT-5.6 Luna is multimodal and can accept both text and images as input.

Where can I use GPT-5.6 Luna?

GPT-5.6 Luna is available through 1 provider including OpenAI.

Where is the GPT-5.6 Luna paper or technical report?

GPT-5.6 Luna has a paper or technical report available at https://openai.com/index/gpt-5-6/. Use that source for architecture, training, release and evaluation details.