gpt-6-luna

Input price
$0.10/1M tokens
Output price
$0.50/1M tokens
Context window
922K
Modalities
Text · Image · PDF → Text

Pricing

API call price

0 – 272K

Input

$0.10

Output

$0.50

Cache write

$0.125

Cache read

$0.01

> 272K

Input

$0.20

Output

$0.75

Cache write

$0.25

Cache read

$0.02

All prices are per million tokens and already include the discount shown above.

These public prices exclude group discounts. Your billed price may be lower based on your group.



Integration & capabilities

Supported protocols

Responses API
Compatible formatOpenAI
Routes
POST /v1/responses
FeaturesStreaming · Reasoning · Prompt caching
Request parametersmodel, input, stream, tools, instructions

cURL Example

curl -X POST https://api.openmodel.ai/v1/responses \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $API_KEY" \
  -d '{
    "model": "gpt-6-luna",
    "input": "Hello"
  }'

Supported capabilities

Function Calling
Function calling (also known as tool calling) provides a powerful and flexible way for models to interface with external systems and access data outside their training data.
Parallel Function Calling
The model may choose to call multiple functions in a single turn.
Tool Choice
By default the model will determine when and how many tools to use. You can force specific behavior with the tool_choice parameter.
Structured Outputs
Ensures the model will always generate responses that adhere to your supplied JSON Schema.
Streaming
Lets you start printing or processing the beginning of the model's output while it continues generating the full response.
System Messages
You can guide the behavior of the model with system instructions.
Reasoning
Reasoning models use internal reasoning tokens before producing a response.
Prompt Caching
Optimizes API usage by allowing resuming from specific prefixes in your prompts. This significantly reduces processing time and costs for repetitive tasks or prompts with consistent elements.
Vision
Models can process image inputs and analyze them — a capability known as vision.
PDF Input
Ask the model about any text, pictures, charts, and tables in PDFs you provide.
Web Search
Allows models to access up-to-date information from the internet and provide answers with sourced citations.

Context & limits

Context window

922K

Max output tokens

128K