---
title: "Flagship Intelligence 5x Cheaper: OpenAI Introduces New GPT-6.1 Sol"
description: "OpenAI introduced the GPT-6.1 Sol model featuring flagship programming and document analysis capabilities at 1/5th the cost of Astra."
date: 2026-09-30T07:08:00.000Z
lang: en
url: https://xab.info/en/posts/openai-introduces-gpt-6-1-sol
tags: [openai, gpt-6-1-sol, ai-models, artificial-intelligence, chatgpt]
publisher: "XAB.info"
---

# Flagship Intelligence 5x Cheaper: OpenAI Introduces New GPT-6.1 Sol

![Interface of the new OpenAI GPT-6.1 Sol model on developer screens](https://xab.info/media/2026/09/30/openai-predstavila-gpt-6-1-sol/openai-predstavila-gpt-6-1-sol-1.webp)

## 🎯 Key Points

- GPT-6.1 Sol delivers flagship performance at 5 times lower cost than Astra.
- Cached input data costs just $0.10 per 1 million tokens.
- The model outperforms competitors in DeepSWE v1.1 and GDP.pdf benchmarks.
- The novelty is available to ChatGPT subscribers and via API as gpt-6.1-sol.

OpenAI has officially unveiled its new language model, GPT-6.1 Sol, which offers users and developers flagship-level programming and deep document processing capabilities while costing five times less than the previous top-tier Astra version. The creators position this algorithm as a breakthrough solution offering the market's best performance-to-cost ratio. ### Cost-Efficiency and Performance

A key advantage of the new product is its pricing policy: cached input data for GPT-6.1 Sol costs a mere $0.10 per 1 million tokens. This is 95% cheaper than standard pricing, delivering massive savings when reusing context multiple times in complex agentic systems. Despite its democratic price tag, in DeepSWE v1.1 software development tests, the new model matched the flagship GPT-6 Astra, outperforming the previous GPT-6 Sol version by 6.4%.

### Benchmark Results and Reliability

In the GDP.pdf benchmark for analyzing complex financial and legal documents, the model decisively outperformed its competitor Claude Opus 5.5. Furthermore, in the AutomationBench test for executing multi-step business processes, the system surpassed Opus 5.5 by 2.2% while consuming three times fewer resources. The developers also managed to reduce factual errors in complex prompts to 4.1%, coming within striking distance of the flagship Astra's 4% error rate.

### Availability and Ultrafast Versions

The new neural network is already available to ChatGPT Plus, Pro, Business, Enterprise, and Edu subscribers in specialized Work and Codex workspaces, as well as via API under the identifier gpt-6.1-sol. Base pricing is set at $2 per 1 million input tokens and $10 per 1 million output tokens. Concurrently, OpenAI launched ultrafast modifications GPT-6 Astra Ultrafast and GPT-6.1 Sol Ultrafast, running up to 8 times faster than originals for premium Pro tier subscribers paying $500 per month.

## 🔍 Fact-Check Verification

- [Интеллект флагмана в 5 раз дешевле: OpenAI представила новую GPT-6.1 Sol](https://www.rbc.ua/ukr/news/intelekt-flagmana-5-raziv-deshevshe-openai-1790750623.html) - Данные о цене кэшированных токенов и производительности полностью совпадают.
- [OpenAI представила GPT-6.1 Sol: почти уровень Astra за 20% цены](https://itc.ua/news/openai-predstavyla-gpt-6-1-sol-pochty-na-urovne-astra-za-20-ot-tseny/) - Подтверждены бенчмарки и интеграция с тарифными планами ChatGPT.
- [OpenAI выпустила GPT-6.1 Sol: почти уровень GPT-6 дешевле в 5 раз](https://wtftime.ru/tech/168894/openai-vypustila-gpt-61-sol-pochti-uroven-gpt-6-deshevle-v-5-raz/) - Подтверждены результаты тестов DeepSWE v1.1 и GDP.pdf.
- [OpenAI снизила цену AI вдвое. Почему GPT-6 Sol и Luna важнее очередной гонки за «самую умную модель»](https://vc.ru/kintegra/3153727-openai-snizila-stoimost-ai-gpt-6-sol-luna) - Аналитика ценовой политики компании и снижения фактологических ошибок.

## ❓ FAQ

### Q: How much does cached input data cost for GPT-6.1 Sol?
**A:** Cached input data costs $0.10 USD per 1 million tokens, which is 95% cheaper than standard pricing.

### Q: Where is the new GPT-6.1 Sol model currently available?
**A:** The model is available to ChatGPT Plus, Pro, Business, Enterprise, and Edu subscribers, as well as developers via API.