GPT-5.6 Luna model ID, context window & pricing
gpt-luna
Quick facts
Model ID gpt-5.6-luna
Source Abacus
Context Window 1000000
Pricing $1.00 input / $6.00 output per 1M tokens
Capabilities tool calling, reasoning, structured output
Model overview
GPT-5.6 Luna is an AI model from Abacus with 1000000 token context window and text, image input support.
Published pricing is $1.00 input and $6.00 output per 1M tokens.
- Workloads that use text, image inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID gpt-5.6-luna
Provider Abacus
Family gpt-luna
Status -
Knowledge Cutoff 2026-02-16
Release Date 2026-07-09
Input Modalities text, image
Output Modalities text
Context Window 1000000
Input Limit -
Output Limit 128000
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control No
Open Weights No
Input Cost / 1M tokens $1.00
Output Cost / 1M tokens $6.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.10
Cache Write Cost / 1M tokens -