GPT-5.6 Luna (batch)

OPENAI Developer Architecture Profile

Intelligence (ELO)1500Chatbot Arena Verified

Max Context1,050,000Tokens

API Cost / 1M$0.70Blended Prompt + Completion

Model Capabilities

Coding & Logic
Fictional

GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...

Granular Pricing Matrix

Input Tokens (Prompt)$0.10 / 1M

Output Tokens (Completion)$0.60 / 1M

Pricing data via OpenRouter. Sync: 8/6/2026

Evaluate Competitors

VS Engine MatchupGPT-5.6 Luna (batch) vs OpenAI: GPT-5.6 Luna Pro (batch)VS Engine MatchupGPT-5.6 Luna (batch) vs Anthropic: Claude Fable 5 VS Engine MatchupGPT-5.6 Luna (batch) vs Anthropic: Claude Opus 4.6 VS Engine MatchupGPT-5.6 Luna (batch) vs Google: Gemini 2.5 Pro Preview 06-05 VS Engine MatchupGPT-5.6 Luna (batch) vs OpenAI: GPT-5.6 Luna VS Engine MatchupGPT-5.6 Luna (batch) vs OpenAI: GPT-5.6 Sol Pro (batch)