# OpenAI launches GPT‑6.1 Sol at same low price, sparking fresh AI price war

> OpenAI’s new GPT‑6.1 Sol keeps the $2‑$10 per‑million‑token rate while claiming stronger performance, undercutting Anthropic’s Claude and DeepSeek models.

Oossa · 2026-09-29 · https://oossa.com/en/openai-launches-gpt-6-1-sol-at-same-low-price-sparking-fresh-ai-price-war

OpenAI announced GPT‑6.1 Sol at its DevDay on September 29, 2026. The model is priced exactly like the earlier GPT‑6 Sol – $2 for every million input tokens and $10 for every million output tokens. The company says the new version is a step up in reasoning and coding ability, but the price has not changed.

## How the pricing compares

The move puts OpenAI’s mid‑tier model well below the cost of Anthropic’s Claude Opus 5.5, which charges around $4 per million input tokens. DeepSeek’s V4.1 Flash, a popular open‑weight model, costs $0.15 for input and $0.60 for output per million tokens. OpenAI’s GPT‑6 Luna, launched a week earlier, is even cheaper at $0.10 input and $0.50 output per million tokens.

## Why the price cut matters

OpenAI’s aggressive pricing is aimed at winning more enterprise customers. At the same time, the company reported over 1.2 billion weekly ChatGPT users, 35 million weekly ChatGPT Work and Codex users, and 2.5 million businesses on its platform. Lower token costs could make it easier for developers and firms to experiment with larger, more capable models without blowing their budgets.

## The facts

- GPT‑6.1 Sol was announced on September 29, 2026 at OpenAI’s DevDay.
- The input price is $2 per million tokens; output price is $10 per million tokens, unchanged from GPT‑6 Sol.
- GPT‑6 Luna costs $0.10 per million input tokens and $0.50 per million output tokens.
- Anthropic’s Claude Opus 5.5 charges about $4 per million input tokens.
- DeepSeek’s V4.1 Flash charges $0.15 input and $0.60 output per million tokens.

## Why it matters

For everyday developers and businesses, the lower token prices mean they can run more queries, build richer apps, and keep AI costs from eating up profit margins. For users, it may translate into cheaper subscription tiers or more features in tools like ChatGPT Work.

## Sources & references

1. [ChatGPT now reaches 1.2 billion people every week, OpenAI says](https://the-decoder.com/chatgpt-now-reaches-1-2-billion-people-every-week-openai-says/) – The Decoder, 2026-09-29
2. [Bring near-Astra intelligence to everyday work with GPT-6.1 Sol on Amazon Bedrock](https://aws.amazon.com/blogs/machine-learning/bring-near-astra-intelligence-to-everyday-work-with-gpt-6-1-sol-on-amazon-bedrock/) – AWS, 2026-09-29
3. [GPT-6.1 Sol replaces GPT-6 Sol after just 7 days, with near-Astra intelligence](https://artificialanalysis.ai/articles/gpt-6-1-sol-replaces-gpt-6-sol-after-just-7-days-with-near-astra-intelligence) – Artificial Analysis

Last updated: 2026-09-29