update list of Anthropic and Gemini generation models

[kevinmingtarja]

removed some of the older models, add newer experimental ones.

references:

• https://ai.google.dev/gemini-api/docs/models
• https://github.com/vercel/ai/blob/fe242163a6400c402ed5b2e0a63f13ce3b0d480f/packages/anthropic/src/anthropic-messages-settings.ts#L2
• https://github.com/vercel/ai/blob/fe242163a6400c402ed5b2e0a63f13ce3b0d480f/packages/google/src/google-generative-ai-settings.ts#L1

[Copilot]

Pull Request Overview

This PR updates the list of Anthropic and Gemini generation models by removing older models and adding newer, experimental ones.

• Removed outdated Anthropic and Google models
• Updated model slugs and added new OpenAI entries
• Adjusted table formatting to reflect the new model details

[trunk-io]

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