Changelog

Merge Fusion

New

Every prompt used to cost frontier prices, whether or not the task actually needed frontier-level reasoning. Merge Fusion sends one prompt to a panel of models in parallel, then has a judge model synthesize their answers into a single response, with you choosing both the panel and the judge. On the DRACO benchmark, an all open-source panel matched Fable 5 at a quarter of the cost, and a premium panel beat Fable 5 outright by 8.5 points, the new best score on the benchmark. Set "model": "fusion" and pass in your panel to start using it.

Indirect prompt injection protection

Security

Content pulled into a prompt from a web page, document, or tool output can carry instructions that quietly redirect a model, and Gateway had no dedicated way to catch that pattern. Indirect prompt injection protection is now live, with per-axis mode and sensitivity controls so you can tune how aggressively it flags content on each axis. A built-in detection tester in Security settings lets you check how a specific payload would be scored before you rely on it in production.

Flex and priority service tiers

New

Every request ran at the same priority and price, whether it was latency-sensitive or could wait behind other traffic. Flex and priority service tiers add a service_tier request parameter, with billing and per-tier pricing on /v1/models reflecting whichever tier you choose. Flex costs less for work that can tolerate queuing; priority costs more and jumps ahead of it.