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Google Gemini 2.5 Professional-Exp: The UI specialist with id points
Google’s Gemini 2.5 launch ships a one-million-token context (two million promised) and is presently free to make use of in lots of locations (I’ve but to be charged for API calls). It shines at UI work and is the quickest mannequin I’ve used for code technology. The catch: In case your repo makes use of an API that modified post-training, Gemini could argue along with your “outdated” actuality—typically placing your actuality in scare quotes. It additionally as soon as claimed that one thing within the log wasn’t potential as a result of it happens within the “future.”
Use it for: Dashboards, design-system polish, accessibility passes, fast proof-of-concept UIs.
Be careful for: Assured however unsuitable API calls and hallucinated libraries. Double-check any library variations it cites.
OpenAI o3: Premium drawback solver, priced accordingly
OpenAI’s o3 (the naming nonetheless confuses individuals who anticipate “GPT”) is a research-grade reasoning engine. It chains software calls and writes analyses, and it’ll pore over a 300-test Jest suite with out grievance. It’s also gated (I needed to present my passport for approval), sluggish, and expensive. Until you’re on a FAANG-scale funds otherwise you’re unable to resolve a bug your self, o3 is a luxurious, not a each day driver.