GPT-5.6 Luna Pro is the same underlying model as [GPT-5.6 Luna](https://ask-coreai.com), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
With CoreAI, you can start chatting with OpenAI: GPT-5.6 Luna Pro (batch) instantly — no separate subscription needed. CoreAI lets you chat with OpenAI: GPT-5.6 Luna Pro (batch) alongside 300+ other AI models from OpenAI and other providers like OpenAI, Anthropic, Google, Meta, and more.
OpenAI: GPT-5.6 Luna Pro (batch) holds the #3 spot for context size out of 386 chat models in the CoreAI catalog — 1.1M tokens, roughly 787,500 words or 1,575 pages of text in a single conversation. On price, it is the #48 cheapest of 125 budget-tier models by input cost. It joined the catalog on 2026-07-09. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through OpenAI: GPT-5.6 Luna Pro (batch) and OpenAI: GPT-5.6 Luna Pro side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00040 on OpenAI: GPT-5.6 Luna Pro (batch)'s raw per-token rates; a heavy session with a 50K-token document costs about $0.008. On CoreAI you don't juggle these numbers — one subscription covers OpenAI: GPT-5.6 Luna Pro (batch) and 300+ other models under a plan usage limit, with no API keys. See plans.
OpenAI: GPT-5.6 Luna Pro (batch) handles 1.1M tokens of context — roughly 787,500 words, or about 1,575 pages of text in one conversation.
OpenAI: GPT-5.6 Luna Pro (batch)'s underlying rates are $0.1 per 1M input tokens and $0.6 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — OpenAI: GPT-5.6 Luna Pro (batch) accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. OpenAI: GPT-5.6 Luna Pro (batch) can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick OpenAI: GPT-5.6 Luna Pro (batch) in the model selector, and chat — no API key, no per-token billing. One subscription covers OpenAI: GPT-5.6 Luna Pro (batch) and 300+ other models.
The closest alternatives on CoreAI are OpenAI: GPT-5.6 Luna Pro, DeepSeek V4 Flash Latest, Upstage: Solar Pro 4 — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
Chat with OpenAI: GPT-5.6 Luna Pro (batch) and 300+ other AI models — all in one app.