# Low, medium, and high presets use GPT-6

By Steven Van · 2026-09-01

Perplexity's Agent API low and medium presets now run gpt-6-luna and high runs gpt-6-sol, with prompts and limits unchanged.

[Perplexity](<https://creatorstoolbox.com/tools/perplexity>)'s Agent API moves its low, medium, and high presets from the GPT-5.6 model family to GPT-6, according to the [September 2026 changelog](<https://docs.perplexity.ai/changelog#september-2026>).

- low and medium switch from **openai/gpt-5.6-luna** to **openai/gpt-6-luna**

- high switches from **openai/gpt-5.6-sol** to **openai/gpt-6-sol**

Prompts, reasoning effort, tools, token budgets, and step limits are unchanged.

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Sources

[Original source](<https://docs.perplexity.ai/changelog#september-2026>)

[Read Low, medium, and high presets use GPT-6 on Creators Toolbox](<https://creatorstoolbox.com/blog/perplexity-low-medium-and-high-presets-use-gpt-6>)

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Canonical source: https://creatorstoolbox.com/blog/perplexity-low-medium-and-high-presets-use-gpt-6