Skip to main content

GPT 5.6 Luna API pricing, benchmarks and specs | AshnaAI

OpenAI

GPT 5.6 Luna

GPT 5.6 Luna is the low-latency GPT-5.6 option for high-throughput chat and structured tasks.

Try this model API docs

Model details

Model ID: gpt-5.6-luna
Provider: OpenAI
Modality: Text generation
Context window: 1,050,000 tokens
Input → output: Text / image → text
Released: Jul 9, 2026
Available on AshnaAI: Oct 3, 2026

Where this model fits

Best capabilities

Multi-step reasoning and complex instruction following
Tool calling and agent workflows
Image and document understanding
Web-connected research tasks

Best for

Complex analysis, planning, research, and high-stakes knowledge work
Interactive and high-volume workloads where latency and cost matter
Agents that need to call APIs or execute multi-step workflows

Not ideal for

The most difficult reasoning tasks where a frontier model is preferred

Benchmarks

No comparable, source-verified benchmark has been published for this catalog entry yet.

Pricing (USD)

Limited-time 30% discount

Input / 1M tokens: $0.241$0.169
Output / 1M tokens: $1.45$1.01
Cached input / 1M: $0.024$0.017
Cache write / 1M: $0.301$0.211

Capabilities

reasoningSupported
toolsSupported
visionSupported
web searchSupported
filesSupported

Available regions

US East (N. Virginia)

us-east-1

Europe (Frankfurt)

eu-central-1

Asia Pacific (Mumbai)

ap-south-1

Multi-region and provider failover: Active

Requests automatically switch to another region or provider if one becomes unavailable.