OpenAI Announces GPT-6 Sol and Luna Models: Prices Drop

OpenAI announced the new GPT-6 Sol and Luna models. Models focused on daily work and high speed come with affordable options.

OpenAI announced the new GPT-6 Sol and Luna models after GPT-6 Astra. These new models bring Astra's improvements in areas such as professional workflows, coding and computer use to users at more accessible prices.

According to the statement made by OpenAI, these models were prepared using similar development methods as Astra. Higher accuracy and better alignment performance are aimed especially in professional business processes.

Innovations with GPT-6 Sol and Luna

The GPT-6 Sol model offers a structure optimized for daily work and comes at a more affordable cost compared to Astra. This model stands out especially regarding reasoning abilities.

GPT-6 Luna stands out as a lower-cost option. Luna is specifically optimized for tasks that require fast response times and high throughput.

The new models outperform their previous versions in OpenAI's benchmark tests. GPT-6 Sol makes about half as many errors as the GPT-5.6 Sol model.

Sol, which also offers significant improvements in coding and computer use, reaches or exceeds Claude Fable 5.1 scores in some tests. Although OpenAI compares the Sol model to Opus 5, Anthropic's new Opus 5.5 model beats Astra in some encoding benchmarks.

Sol and Luna models adopt the new communication style introduced with Astra. This style offers a simpler spoken language, containing less jargon and free of unnecessary details.

Responses are kept shorter without losing content. The new models also significantly reduce the rate of making false claims in coding tasks.

Performance and Usability

OpenAI has reduced token prices for Sol and Luna models compared to previous 5.6 releases. Improvements have also been made to prompt caching processes.

Response times are faster as agents use context more efficiently. A 90 percent discount is provided on cached input token readings.

GPT-6 Sol is priced at $2 per million input tokens and $10 per million output tokens. These prices represent a drop of half compared to previous versions.

GPT-6 Luna, on the other hand, is offered at a cost of $0.10 per million input tokens and $0.50 per million output tokens. These figures are significantly lower than the previous prices of $0.20 and $1.20.

GPT-6 Sol offers half the cost per token compared to the Opus 5.5 model. However, Anthropic states that Opus 5.5 uses fewer tokens per task, making a direct comparison difficult.

GPT-6 Sol and Luna are available to Plus, Pro, Business, Enterprise and Edu users via ChatGPT Work and Codex as of today. GPT-6 Luna is also available on the desktop app for Free and Go users.

New models cannot be used in Chat mode yet. How do you think the price and performance balance offered by these new models will change your artificial intelligence usage habits?