OpenAI
GPT-6.1 Sol
gpt-6.1-sol
Total Context
1.1M
Max Output
128K
Released
N/A
Input$2 / M tokens
Output$10 / M tokens
GPT-5.6 Luna Pro
gpt-5.6-luna-proGPT-5.6 Luna Pro is the enhanced version of the Luna series, intended for higher-quality answers, more stable instruction following, and stronger task completion. It is suitable for complex conversations, content generation, knowledge Q&A, business analysis, coding assistance, and multi-step automation tasks. Luna Pro is well suited for product experiences where output quality and user experience matter, such as professional writing assistants, enterprise AI assistants, customer support, knowledge-base systems, and agent workflows. It is a good option when the task requires more reliability than the standard Luna model.
Context Window
1.1M tokens
Maximum Output
128K tokens
Release Date
Jul 9, 2026
Modalities
GPT-5.6 Luna Pro Pricing
| Token Tier | Input Price | Output Price | Cache Read | Cache Create 5m |
|---|---|---|---|---|
| <=272K | $1/M | $6/M | $0.1/M | $1.25/M |
| >272K | $2/M | $9/M | $0.2/M | $2.5/M |
GPT-5.6 Luna Pro API Capabilities
Reasoning
Supported
Tool calling
Supported
Temperature parameter
Not supported
Attachments
Supported
Knowledge Base
2026-02-16
Endpoint Protocols
Completions API
GPT-5.6 Luna Pro Model Highlights
GPT-5.6 Luna Pro applies the efficient GPT-5.6 Luna family to high-volume workloads that benefit from additional reasoning, long context and image understanding.
Efficient Deep Reasoning
The Pro configuration emphasizes additional deliberation while retaining the Luna family’s focus on cost-sensitive processing.
Million-Token Context
A 1,050,000-token context window enables consolidated processing of lengthy documents, code collections and accumulated task history.
Visual Reasoning
Text and image inputs can be evaluated together, allowing the model to reason about screenshots, diagrams and scanned material.
GPT-5.6 Luna Pro Use Cases
GPT-5.6 Luna Pro is suited to economical document review, complex classification and visual data processing that require more careful reasoning.
Large-Batch Document Review
Review long files against detailed policies, identify exceptions and return concise findings for downstream handling.
Nuanced Content Classification
Apply multi-part criteria to large content streams, distinguish borderline cases and attach clear classification rationales.
Visual Record Processing
Interpret forms, screenshots and scanned records, extract relevant details and flag entries that require human review.
How to Use GPT-5.6 Luna Pro via the TokenHub API
import OpenAI from "openai"
const client = new OpenAI({
apiKey: process.env.TOKENHUB_API_KEY,
baseURL: "https://us-api.tokenhub.com/v1",
})
const result = await client.chat.completions.create({})
console.log(result.choices[0]?.message?.content)GPT-5.6 Luna Pro Benchmarks
| Index score | ||
|---|---|---|
| Artificial Analysis Intelligence Index | Artificial Analysis broad capability aggregate | 33.3 |
| Artificial Analysis Coding Index | Artificial Analysis software task aggregate | 44.2 |
| Knowledge & Reasoning | ||
| GPQA | Advanced science problem solving | 83.5% |
| HLE | Broad expert-level exam set | 18.8% |
| Coding & Engineering | ||
| SciCode | Scientific coding challenges | 45.6% |
| Instruction Following & Agent Tasks | ||
| AA-LCR | Long-context reasoning | 59.3% |
Metrics sourced from Artificial Analysis
GPT-5.6 Luna Pro FAQs
Common questions about using GPT-5.6 Luna Pro on TokenHub.
What is GPT-5.6 Luna Pro?+
GPT-5.6 Luna Pro is a GPT-5.6 Luna-series model exposed through TokenHub. It is intended for users who need a general AI model for chat, reasoning, writing and API-based workflows.
What is GPT-5.6 Luna Pro best for?+
It is suitable for conversational assistants, content drafting, summarization, structured data extraction, code help and multi-step task automation.
What are the strengths of GPT-5.6 Luna Pro?+
Its strengths are general-purpose task coverage, clear instruction following and flexible integration through TokenHub. The Pro version is generally a better fit when you want higher-quality outputs and can accept potentially higher cost or latency.
What limitations or tradeoffs should I consider with GPT-5.6 Luna Pro?+
As with any AI model, review important outputs for accuracy, test prompts with your own data and compare latency, cost and quality against alternatives before production use.
How do I use GPT-5.6 Luna Pro through the TokenHub API?+
Select "GPT-5.6 Luna Pro" as the model in your TokenHub request, use your account endpoint and credentials, and set parameters such as temperature, max tokens and streaming according to your application needs.
How should I choose between GPT-5.6 Luna Pro and related GPT-5.6 models?+
Start with a small evaluation set that reflects your real tasks. Choose the model that gives the best balance of answer quality, reliability, latency and cost for your workload.
Ready to use GPT-5.6 Luna Pro?
Use one API key to access GPT-5.6 Luna Pro and more AI models through TokenHub.