I wouldn’t pick a multimodal API by counting models. I’d start with what the application actually does: synchronous text requests, occasional image generation, thousands of queued video jobs, or inference behind enterprise IAM. Those are different operating models. A single account can simplify procurement and billing, but it does not make request schemas, output formats, or job lifecycles interchangeable. My shortlist splits into four categories: a cross-provider gateway for mixed commerc...