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    Product Update

    Opus 4.5 is already in Fastshot

    Published: Jan 4, 2026
    3 min read

    Opus 4.5 is already in Fastshot

    We've added Claude Opus 4.5 to Fastshot, giving you access to the most advanced coding capabilities available on this planet.


    Why Opus 4.5

    Opus 4.5 is there when you need extra power for bigger ideas. It's better at keeping the whole picture in mind and working through things step by step, which makes it a great choice when your app is complex and has many features.


    What this means for Fastshot users

    Claude Sonnet 4.5 is the default model: fast, reliable, and perfect for everyday building.

    When your idea grows or becomes more complex, you can switch to Opus 4.5 for deeper thinking and more context. You always have the choice.

    We will continue to upgrade Fastshot's agents and models over time, while keeping you in control.


    Which model should I use?

    Think of Sonnet as a daily helper, and Opus as a senior expert.

    • Start fast: Sonnet
    • Build something complex: Opus

    You can switch anytime.


    Summary

    • Opus 4.5 is in Fastshot.
    • Sonnet 4.5 is still great.
    • We bring you the best tools as they evolve.

    Now go build your next MRR-generating mobile app with Fastshot 🚀


    🚀 Ready to build with Opus 4.5?

    Experience the power of Claude's most advanced model in your next mobile app:

    👉 Start building at fastshot.ai

    Questions about which model to use? Join our Discord community and ask the team!

    About the Author

    Elvira Dzhuraeva is an expert in AI mobile app development and React Native. A former Senior Product Manager at Google specializing in AI/ML and Generative AI, she is the Founder of Fastshot (YC-backed) and a founding contributor to Kubeflow.

    AI Mobile App DevelopmentReact NativeAI Developer ToolsVibecodingAI/ML Ops