OpenAI: GPT-6 Sol Pro
openai/gpt-6-sol-pro
Try GPT-6 Sol Pro for free in your browser, and add it to your app for free with Puter.js AI API.
Try it free Add to your app// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "openai/gpt-6-sol-pro"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "openai/gpt-6-sol-pro"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
Model Card
GPT-6 Sol Pro is OpenAI's higher-effort configuration of GPT-6 Sol, the mid-tier model in the GPT-6 family released September 22, 2026 alongside the flagship GPT-6 Astra. Following the pattern OpenAI used for GPT-5.6 Sol Pro and GPT-6 Astra Pro, it runs the same underlying Sol model with reasoning effort set to pro rather than a separate, larger checkpoint, which is why it carries identical pricing to base Sol.
At $2 per million input tokens and $10 per million output tokens, it shares Sol's 1,050,000-token context window and 128,000 max output tokens, along with function calling and adjustable reasoning effort.
Sol Pro suits complex development work, coding, computer use, and data analysis where response quality on harder requests matters more than shaving cost or latency.
Context Window 1M
tokens
Max Output 128K
tokens
Input Cost $2
per million tokens
Output Cost $10
per million tokens
Release Date Sep 22, 2026
Try GPT-6 Sol Pro for free
Try GPT-6 Sol Pro instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
More AI Models From OpenAI
GPT-6 Sol
GPT-6 Sol is OpenAI's mid-tier model in the GPT-6 family, released September 22, 2026 as a faster, cheaper counterpart to the flagship GPT-6 Astra, built on the same training methods. OpenAI positions it for complex development work that developers run repeatedly, such as building features, reviewing code, debugging, and analyzing data. OpenAI reports Sol scoring 68.8% on the DeepSWE 1.1 coding benchmark, 60.5% on OSWorld 2.0 for computer use at xhigh effort, and 56.4% on Agents' Last Exam, a test of professional work across 55 sub-industries. The company says Sol makes about half as many factual errors as GPT-5.6 Sol, approaching Astra-level reliability at a lower cost. At $2 per million input tokens and $10 per million output tokens, half of GPT-5.6 Sol's rate, Sol matches Claude Sonnet 5's standard pricing, though no published benchmark compares the two models directly.
ChatGPT-6 Luna
GPT-6 Luna is OpenAI's fast, low-cost model in the GPT-6 family, released September 22, 2026 alongside GPT-6 Sol as smaller, cheaper counterparts to the flagship GPT-6 Astra. OpenAI built both on the training methods behind Astra, carrying over its factuality and alignment gains into models meant for high-volume use. Luna targets tightly scoped, high-volume work such as summarizing documents, extracting information, and answering straightforward questions. On DeepSWE 1.1, a coding benchmark, OpenAI reports Luna scoring 66.6%, close behind Sol's 68.8%. OpenAI also says that at higher reasoning-effort settings, Luna can match GPT-5.6 Sol's quality at roughly a hundredth of the cost. At $0.10 per million input tokens and $0.50 per million output tokens, it costs 50% less on input and 58% less on output than GPT-5.6 Luna, positioning it for applications that run at scale rather than tasks needing peak accuracy.
ChatGPT-6 Luna Pro
GPT-6 Luna Pro is OpenAI's higher-effort configuration of GPT-6 Luna, the fast, low-cost tier in the GPT-6 family released September 22, 2026. Rather than a separate model, it is the same underlying Luna checkpoint served with reasoning effort set to pro, trading speed for more careful reasoning on harder requests. It carries the same $0.10 per million input token and $0.50 per million output token pricing as base Luna, along with the same 1,050,000-token context window and 128,000 max output tokens, and supports function calling, structured outputs, and adjustable reasoning effort. Luna Pro fits teams already using Luna for high-volume, latency-sensitive work such as summarization and extraction who need better accuracy on a subset of harder requests without stepping up to Sol's pricing.
Frequently Asked Questions
You can access GPT-6 Sol Pro by OpenAI through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
GPT-6 Sol Pro is free to try with a Puter account. Every account includes a free AI allowance, and you can chat with it in the playground on this page. You can upgrade your account anytime for a larger allowance.
GPT-6 Sol Pro is free to integrate using the Puter.js AI API. With the User-Pays Model, you can add AI to your app for $0, since users cover their own AI usage through their Puter account.
| Price per 1M tokens | |
|---|---|
| Input | $2 |
| Output | $10 |
GPT-6 Sol Pro was created by OpenAI and released on Sep 22, 2026.
GPT-6 Sol Pro supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,100 pages of text.
GPT-6 Sol Pro can generate up to 128K tokens in a single response.
Yes — the GPT-6 Sol Pro API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Add GPT-6 Sol Pro to your app for free
Developers can integrate GPT-6 Sol Pro for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.