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OpenAI: GPT-6 Luna Pro (batch) API Pricing
GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
How much does OpenAI: GPT-6 Luna Pro (batch) cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: GPT-6 Luna Pro (batch) costs about $1 ($0.5 input + $0.5 output). Try your own volumes in the cost calculator.
What are cheaper alternatives to OpenAI: GPT-6 Luna Pro (batch)?
- Inference.net: Schematron V2 Small — $0.05 in / $0.23 out per 1M
- DeepSeek: DeepSeek V4 Flash 0423 — $0.091 in / $0.182 out per 1M
- NVIDIA: Nemotron 3.5 Lightning — $0.07 in / $0.2 out per 1M
- Poolside: Laguna S 2.1 — $0.09 in / $0.18 out per 1M
- Upstage: Solar Mini 4 — $0.05 in / $0.2 out per 1M
- Google: Gemini 2.5 Flash Lite (batch) — $0.05 in / $0.2 out per 1M
Compare OpenAI: GPT-6 Luna Pro (batch) with other models
OpenAI: GPT-6 Luna Pro (batch) vs OpenAI: gpt-oss-20bOpenAI: GPT-6 Luna Pro (batch) vs OpenAI: gpt-oss-20b (batch)OpenAI: GPT-6 Luna Pro (batch) vs OpenAI: gpt-oss-120b (batch)OpenAI: GPT-6 Luna Pro (batch) vs OpenAI: GPT-5 Nano (batch)OpenAI: GPT-6 Luna Pro (batch) vs OpenAI: GPT-4.1 Nano (batch)OpenAI: GPT-6 Luna Pro (batch) vs OpenAI: GPT-6 Luna (batch)
Frequently asked questions
How much does OpenAI: GPT-6 Luna Pro (batch) cost?
OpenAI: GPT-6 Luna Pro (batch) costs $0.05 per 1M input tokens and $0.25 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $1.
What is the context window of OpenAI: GPT-6 Luna Pro (batch)?
OpenAI: GPT-6 Luna Pro (batch) has a context window of 1,050,000 tokens and can return up to 128,000 output tokens per response.
What are cheaper alternatives to OpenAI: GPT-6 Luna Pro (batch)?
Cheaper models include Inference.net: Schematron V2 Small ($0.05 in / $0.23 out), DeepSeek: DeepSeek V4 Flash 0423 ($0.091 in / $0.182 out), NVIDIA: Nemotron 3.5 Lightning ($0.07 in / $0.2 out). See the full list on this page.
Is OpenAI: GPT-6 Luna Pro (batch) free to use?
No. OpenAI: GPT-6 Luna Pro (batch) is a paid model at $0.05 input / $0.25 output per 1M tokens. 20 free models are listed on the free models page.
Provider: openai · Model ID: openai/gpt-6-luna-pro:batch · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices