What's the best generative AI platform for app development?

We're building an AI-powered app and exploring the best infrastructure platforms to support development, deployment, and integration.

Ideally, I’m looking for something that helps small to mid-sized teams move fast, supports flexible model access or training, and won’t get in the way of iteration. Based on generative AI infrastructure tools on G2, here are a few options I’m evaluating. I’d love to hear how these have worked for others building apps with generative AI features.

1. Vertex AI: Fully managed ML platform with tools for training, tuning, and deploying models. Great fit for teams already using Google Cloud.
2. AWS Bedrock: Unified API for accessing foundation models from providers like Anthropic and Meta. Ideal for app teams already operating within AWS infrastructure.
3. Zoom Workplace: While not a full-stack AI platform, it offers embedded generative AI for productivity. Might be useful for teams adding AI to communication workflows.
4. Google Cloud AI Infrastructure: High-performance backend with custom hardware like TPUs. Best for teams needing raw compute power and infrastructure control.
5. Botpress: Developer-focused platform for building conversational AI. Great for app developers creating chatbots or integrating assistants into products.

If you’ve built or launched an AI-powered app, which platform helped the most? What made the difference in terms of speed, scalability, or ease of integration?

Looking forward to learning from your experience.