# Models updated: Claude Sonnet 5, Gemini 3 Pro and GPT-5.6

Published: 2026-07-20 | Source: https://geoready.co/news/consumer-default-refresh

The audit matrix now mirrors the models people actually meet in the chat apps today - Claude Sonnet 5 is the new claude.ai default, the Gemini app's Pro option is now Gemini 3, and OpenAI's tiers move to GPT-5.5 and GPT-5.6 Sol.

GEO is about scoring your brand on the answers real users get - not on whatever the model APIs happen to recommend. So we update the matrix based on what ChatGPT, Gemini and Claude users actually meet when they ask a question today.

## What changed

- **Claude Sonnet 5** is now the default model on claude.ai for both Free and Pro users, replacing Claude Sonnet 4.6 in the top tier.
- **Gemini 3 Pro** is now the "Pro" option in the Gemini app, replacing Gemini 2.5 Pro.
- **OpenAI** now splits by what users actually hit: **GPT-5.5** is the fast default most people get, and **GPT-5.6 Sol** is the paid reasoning tier.

Gemini 3.5 Flash, Claude Haiku 4.5 and the Mistral models are unchanged.

## What it means for you

Historical audits keep their scores - they ran on the models that were current then. New audits use the updated matrix automatically. No action required.