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OpenAI: GPT-5.6 Luna API Pricing
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...
How much does OpenAI: GPT-5.6 Luna cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: GPT-5.6 Luna costs about $4.4 ($2 input + $2.4 output). Try your own volumes in the cost calculator.
What is the official OpenAI: GPT-5.6 Luna price?
| Official (openai) | Catalog (OpenRouter) | |
|---|---|---|
| Input /1M | $0.2 | $0.2 |
| Output /1M | $1.2 | $1.2 |
| Cached input /1M | $0.02 | $0.02 |
✓ Matches the official list price. Source: openai official pricing page, checked 2026-10-21.
What are cheaper alternatives to OpenAI: GPT-5.6 Luna?
- Qwen: Qwen3.8 27B — $0.04 in / $1.35 out per 1M
- TheDrummer: Skyfall 36B V2 — $0.55 in / $0.8 out per 1M
- StepFun: Step 3.7 Flash — $0.2 in / $1.15 out per 1M
- Qwen: Qwen3 Next 80B A3B Thinking — $0.15 in / $1.2 out per 1M
- Qwen: Qwen3.6 Flash — $0.1875 in / $1.125 out per 1M
- Xiaomi: MiMo-V2.6-Pro — $0.435 in / $0.87 out per 1M
Where to run OpenAI: GPT-5.6 Luna
AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.
Run it on AI/ML API →Run it on Novita AI →
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Compare OpenAI: GPT-5.6 Luna with other models
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Frequently asked questions
How much does OpenAI: GPT-5.6 Luna cost?
OpenAI: GPT-5.6 Luna costs $0.2 per 1M input tokens and $1.2 per 1M output tokens (list price, snapshot October 22, 2026). At 10M input + 2M output tokens per month that is about $4.4.
What is the context window of OpenAI: GPT-5.6 Luna?
OpenAI: GPT-5.6 Luna 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-5.6 Luna?
Cheaper models include Qwen: Qwen3.8 27B ($0.04 in / $1.35 out), TheDrummer: Skyfall 36B V2 ($0.55 in / $0.8 out), StepFun: Step 3.7 Flash ($0.2 in / $1.15 out). See the full list on this page.
Is OpenAI: GPT-5.6 Luna free to use?
No. OpenAI: GPT-5.6 Luna is a paid model at $0.2 input / $1.2 output per 1M tokens. 21 free models are listed on the free models page.
What is the official price of OpenAI: GPT-5.6 Luna?
On openai's official pricing page (checked 2026-10-21), OpenAI: GPT-5.6 Luna is listed at $0.2 per 1M input tokens and $1.2 per 1M output tokens. The catalog price tracked on this page matches it exactly.
Provider: openai · Model ID: openai/gpt-5.6-luna · Modality: text+image+file->text · Price snapshot October 22, 2026, refreshed daily. How we collect prices