Model Gateway

Browserbase's Model Gateway lets Stagehand browser automations change supported models without separately configuring each provider's account and access credentials. The application supplies its Browserbase API key and a model choice; Browserbase forwards the request to the upstream provider and bills the usage to the customer, which it says is at market price with no markup. Gateway explanation.

This moves provider integration work out of the browser script. Browserbase says it also handles retries, backoff and upstream rate-limit responses. For developers comparing models on the same automation task, the concrete benefit is that a model change becomes a configuration change within the supported set, which the article lists as OpenAI, Anthropic and Gemini models. Request routing and switching.