Gemini 3.5 Flash is now available on .Vercel AI Gateway This model has improved coding proficiency and parallel agentic execution loops versus previous Flash versions. It also brings improvements to core reasoning, instruction following, and multi-turn coherence, with stronger performance on complex tasks and higher-quality reasoning traces in thinking mode. 3.5 Flash defaults to the thinking level, balancing response quality with faster, more cost-efficient generation.medium To use Gemini 3.5 Flash, set model to in the .google/gemini-3.5-flashAI SDK Note that , , , and are not supported by this model.temperaturetopPtopKthinking_budget AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime.

It includes built-in , , support, and intelligent provider routing with automatic retries.custom reportingobservabilityBring Your Own Key Learn more about , view the or try it in our .AI GatewayAI Gateway model leaderboardmodel playground Read more