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GPT-5.6 Luna Pro API

OpenAI·Vision

GPT-5.6 Luna Pro — GPT-5.6 Luna served with pro reasoning mode for higher-quality responses on complex tasks.

1.1M Context 128.0K out 96 req/24h $0.25 24h volume
Input
Text Image File
Output
Text

Pricing

Cheapest live price, per 1 million tokens.

Input / 1M tokens

$0.1099%

OpenRouter $0.100

Output / 1M tokens

$0.43627% off

$0.600 OpenRouter

Cache read / 1M

$0.011

Repeated prompt prefixes

Cache read is the discounted rate for repeated prompt prefixes (system prompts, agent context).

Capabilities · 13

Vision Reasoning Effort: low / medium / high Tool calling Parallel tools JSON mode JSON schema Web search File input PDF Prompt caching Streaming Seed

Specifications

Context window
1.1M
Max output
128K
Type
Vision
Creator
OpenAI
Live sellers
18
Requests / 24h
96

Price history · 60 days

Sep 9 — Nov 8▲ 0.89% vs last week
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Estimated monthly cost

30 days at the cheapest live price.

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Quick start

OpenAI-compatible — change the base URL and key. Get a key from the dashboard.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.qubax.ai/v1",
    api_key="YOUR_QUBAX_API_KEY",
)

response = client.chat.completions.create(
    model="gpt-5.6-luna-pro",
    messages=[{"role": "user", "content": "Hello!"}],
)

print(response.choices[0].message.content)

About GPT-5.6 Luna Pro

GPT-5.6 Luna Pro is a multimodal language model developed by OpenAI. It's particularly well-suited for analyzing images, screenshots, and visual content, tackling complex, multi-step reasoning problems, orchestrating tool-using agents that call APIs and external services, grounding responses in real-time web search results, producing structured outputs for reliable data extraction and handling large contexts of up to 1.1M tokens. Its 1.1M-token context window means you can pass in entire documents, codebases, or conversation histories without losing context. It can write up to 128K tokens in a single response.

As of Nov 8, 2026, GPT-5.6 Luna Pro costs $0.109 per 1M input tokens and $0.436 per 1M output tokens on Qubax. A typical 1,000 chat requests (2K tokens in, 500 out) come to about $0.44. 18 independent compute providers currently serve it, so requests fail over automatically. It handled 96 requests on Qubax in the last 24 hours. Pay with USDC, USDT, BTC, ETH or 350+ other coins — no credit card required.

Visual Analysis
Analyze images, screenshots, diagrams, and visual content
Complex Reasoning
Multi-step problem solving, math, and logical analysis
Function Calling
Build agents and tool-using applications
Long Documents
Process entire codebases, books, or lengthy conversations
Chat & Conversation
Build AI chatbots and conversational assistants

Similar-priced alternatives

Frequently asked questions

How much does the GPT-5.6 Luna Pro API cost?

On Qubax, GPT-5.6 Luna Pro costs $0.109 per 1M input tokens and $0.436 per 1M output tokens.

Is the GPT-5.6 Luna Pro API compatible with OpenAI?

Yes. Qubax provides an OpenAI-compatible API. You can use GPT-5.6 Luna Pro as a drop-in replacement by changing your base URL to https://api.qubax.ai/v1 and using your Qubax API key. It works with Cline, Cursor, OpenCode, Hermes Agent, and any tool that supports OpenAI APIs.

How do I pay for GPT-5.6 Luna Pro API usage?

Qubax uses prepaid crypto credits. Top up with USDC, USDT, BTC, ETH, SOL or 350+ other coins and your balance is deducted as you use the API. No credit card or KYC required.

What is the context window of GPT-5.6 Luna Pro?

GPT-5.6 Luna Pro supports a context window of 1.1M tokens, allowing you to process large documents, codebases, or long conversations in a single request.

What can I build with GPT-5.6 Luna Pro?

You can use GPT-5.6 Luna Pro to analyze images and visual content, tackle complex multi-step reasoning tasks, build autonomous agents that call external tools and APIs, answer questions with real-time web search, generate structured JSON output for data pipelines and process long documents and entire codebases. Because it's served through Qubax's OpenAI-compatible API, integration into existing apps, agents, or workflows takes just a few lines of code.

How fast and reliable is GPT-5.6 Luna Pro on Qubax?

Responses stream token by token. 18 sellers serve it, so if one is slow or down the request moves to the next.

GPT-5.6 Luna Pro vs NVIDIA Nemotron 3 Ultra 550B: which should I choose?

GPT-5.6 Luna Pro by OpenAI and NVIDIA Nemotron 3 Ultra 550B by NVIDIA are both strong models in a similar price tier. GPT-5.6 Luna Pro excels at complex reasoning and supports vision/image inputs. NVIDIA Nemotron 3 Ultra 550B comes from a different lab and may have different strengths depending on your workload. On Qubax, GPT-5.6 Luna Pro starts at $0.109/1M input tokens versus NVIDIA Nemotron 3 Ultra 550B's $0.113/1M — making GPT-5.6 Luna Pro the more cost-effective option for high-volume workloads. Both are available on Qubax with crypto payments and OpenAI-compatible APIs, so you can try each and switch freely.

Can I use GPT-5.6 Luna Pro for commercial projects?

Yes. GPT-5.6 Luna Pro on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.

Why use GPT-5.6 Luna Pro on Qubax?

27% cheaper

Providers compete on price — you get the cheapest healthy seller.

Pay with crypto

350+ coins (BTC, ETH, SOL, USDT, USDC). No card, no KYC.

OpenAI & Anthropic compatible

Drop-in base URL. Works with Cline, Cursor, Claude Code, OpenAI and Anthropic SDKs.

Get started free →

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GPT-5.6 Luna Pro

$0.109 in · $0.436 out

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