prices synced 2026-09-23

GPT-6 Luna (batch)

OpenAI · Multimodal · Released Sep 2026

Compare

GPT-6 Luna (batch) is OpenAI's fast, cost-efficient model in the GPT-6 series, designed for high-volume and latency-sensitive workloads when batch processing is acceptable.

Strengths
Optimized for speed and efficiency with a 1.05M token context window, making it well-suited for rapid inference on straightforward tasks.
Best for
High-volume applications like chat, classification, and lightweight agentic workflows where batch processing latency is acceptable.
Limitations
Positioned below GPT-6 Luna Pro and the GPT-6 Astra models, so it lacks the advanced reasoning capabilities needed for complex or nuanced problem-solving.

Input / 1M

$0.05

Output / 1M

$0.25

Cached input / 1M

$0.005

Context window

1.05M

Also billed

Cache write
$0.0625 / 1M

Price history

Price per 1M tokens over timeOutput $0.25; Input $0.05 as of Sep 2026.$0$0.1$0.2Output on 22 Sep 2026: $0.25Out $0.25Input on 22 Sep 2026: $0.05In $0.05Sep 2026

Snapshots

Effective Input Output Cached in Note Source
22 Sep 2026 $0.05 $0.25 $0.005 Imported from OpenRouter openrouter.ai

More from OpenAI

Report a problem