OpenAI
OpenAI GPT-6 model built for complex coding and agentic workflows, balancing intelligence and cost.
1.05M ctxUSD 2 / 1M input tok; USD 10 / 1M output tok
Introducing GPT-6 LunaOpenAIReleased September 22, 2026
GPT-6 Luna
OpenAI GPT-6 model for focused, high-volume workloads where cost efficiency is the priority.
reasoning-llmProprietary APIUSD 0.10 / 1M input tok; USD 0.50 / 1M output tokContext: 1.05M (1,050,000 tokens)
Technical Specifications
Architecture Type
Dense Transformer / MoE
Total Parameters
Undisclosed
Context Window
1.05M (1,050,000 tokens)
Max Output Tokens
128K (128,000 tokens)
Knowledge Cutoff
May 18, 2026
Supported Modalities
text, vision, reasoning
License & Access
Proprietary API
Deep Architectural Overview
GPT-6 Luna supports text and image input, text output, multilingual use, vision, configurable reasoning effort, and tools including functions, web search, file search, and computer use.
Strengths & Considerations
Core Strengths
- Cost-sensitive high-volume workloads
- Functions, web search, file search, and computer use
- Configurable reasoning effort
Token & API Pricing
Input Tokens (1M)$0.10
Output Tokens (1M)$0.50
Cached Input (1M)$0.0100
Pricing is verified directly against OpenAI's developer documentation and API rate sheets.
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