GPT-5.6 Luna API in Russia — no VPN, no foreign card
GPT-5.6 Luna is the smallest model of the GPT-5.6 series, built for high-volume workloads where the cost of every call matters. Connect through RuAPI: pay in USDT from $5, no subscription, your key right after sign-up.
from openai import OpenAI
client = OpenAI(
api_key="sk-...",
base_url="https://www.ruapi.ai/v1",
)
resp = client.chat.completions.create(
model="gpt-5.6-luna",
messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)Replace sk-... with a key from the RuAPI Console — the model gpt-5.6-luna is already set.
GPT-5.6 Luna API price
Current price in US dollars — the same as on the pricing page. Pay in USDT, pay as you go, no subscription.
| model | input $ / 1M | output $ / 1M |
|---|---|---|
| gpt-5.6-luna | $0.24 cache read $0.0240 >272K: $0.48 | $1.44 >272K: $2.16 |
Input is the regular price of input tokens, “cache read” is the price of input tokens served from the prompt cache, output is the price of output tokens. The price in your account may be lower.
The grey “>272K” line is the vendor’s official tier for long prompts: when a prompt exceeds the threshold, the whole request is billed at that tier.
What is GPT-5.6 Luna
Luna is the nano tier of the GPT-5.6 series: OpenAI optimized it for cost-sensitive, high-volume workloads. It still has the same context window, output limit and knowledge cutoff as Sol and Terra.
You can match reasoning depth to the task: none or low for simple classification, levels up to max for tricky cases, and medium by default. Luna understands images, calls functions and returns structured outputs, so it can handle labeling, request routing and pulling fields out of documents.
GPT-5.6 Luna specs
| Developer | OpenAI |
| Model ID in the RuAPI API | gpt-5.6-luna |
| Context window | 1.05M tokens |
| Max input | 922K tokens |
| Max output | 128K tokens |
| Input | text, images |
| Output | text |
| Reasoning mode | yes |
| Tool calling | yes |
| Prompt caching | yes |
| Status | generally available |
| Protocols on RuAPI | OpenAI (/v1/chat/completions) · OpenAI Responses (/v1/responses) |
Specs are from OpenAI’s official documentation (developers.openai.com), checked Oct 22, 2026.
What it’s good for
- Classifying and labeling large streams of text
- Extracting fields from emails, forms and documents into JSON
- Routing requests before they reach a stronger model
- Simple helper steps inside agents
When another model is a better fit
- GPT-5.6 Terra — The next model up in the series — when Luna's answers aren't good enough
- Claude Haiku 5.5 — In Anthropic's words, the fastest current Claude — for classification, extraction and routing; accepts PDFs
GPT-5.6 Luna: price on RuAPI and elsewhere
| RuAPI | AITUNNEL | ProxyAPI | |
|---|---|---|---|
| Input, $ per 1M tokens | $0.24 | ≈ $0.488 | ≈ $0.732 |
| Output, $ per 1M tokens | $1.44 | ≈ $2.928 | ≈ $4.392 |
AITUNNEL and ProxyAPI prices are from their public pages as of Oct 22, 2026 (ProxyAPI prices include VAT, as on their site), converted at the Bank of Russia rate (81.97 ₽ per $1). The RuAPI price is current.
How to connect GPT-5.6 Luna from Russia
- Sign up at ruapi.ai — with email, Google or Yandex. No VPN needed.
- Top up with USDT or USDC from 5 USDT. No USDT yet? Buy it with rubles via SBP — step by step in the docs.
- In the Console, open API Keys → Create key.
- Use the address https://www.ruapi.ai/v1 and the model gpt-5.6-luna.
FAQ
See also: ChatGPT API in Russia · Documentation · GPT-6 Astra · GPT-5.6 Sol · GPT-5.6 Terra · GPT-5.4