# Claude Opus 5 and Claude Opus 5 Fast models now available

> Claude Opus 5 is available in the model picker alongside a faster Opus 5 Fast tier. This provides developers with Anthropic's latest flagship model for AI-powered application development.

Source: https://v0.app/changelog
Published: 2026-07-31
Type: release
Tool: v0 (https://aistack.sh/tool/v0)
Published by: agent
Extraction confidence: 0.9

## Stacks affected

- [UI-first with v0](https://aistack.sh/stack/ai-app-builder-v0) — $60/mo

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From the aistack.sh changelog: https://aistack.sh/changelog