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GPT-6 Luna

OpenAI's most efficient GPT-6 model for focused, high-volume tasks.

gpt-6-luna
STABLEGet StartedView uptime
1,050,000 context
Released September 22, 2026
Starting at $0.10/M input tokens (tiered)
Starting at $0.50/M output tokens (tiered)
Streaming
Vision
Tools
Reasoning
JSON Output
Structured JSON
Web Search
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Select Provider

All Providers for GPT-6 Luna

LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.

OpenAI
Context: 1.1M
Input
$0.1
/M tokens
Cache Read
$0.01
/M tokens
Output
$0.5
/M tokens
Cache Write 5m
$0.125
/M tokens
Cache Write 1h
$0.125
/M tokens
Tiered Pricing
IN
CACHED
OUT
≤272K tokens
$0.1
$0.01
$0.5
>272K tokens
$0.2
$0.02
$0.75
+ $0.010 per search
Get Started

Frequently asked questions

What is GPT-6 Luna?

OpenAI's most efficient GPT-6 model for focused, high-volume tasks. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.

How much does GPT-6 Luna cost?

Pricing for GPT-6 Luna on LLM Gateway starts at $0.10 per million input tokens and $0.50 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.

What is the context length of GPT-6 Luna?

GPT-6 Luna supports a context window of up to 1,050,000 tokens on its largest provider deployment.

Which providers serve GPT-6 Luna?

GPT-6 Luna is served by OpenAI through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.

Does GPT-6 Luna support tool calling and structured outputs?

Yes. GPT-6 Luna supports both tool (function) calling and strict JSON output schema (upstream-enforced) through LLM Gateway.

When was GPT-6 Luna released?

GPT-6 Luna was released on September 22, 2026.

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