Amazon EventBridge now supports event payloads up to 1 MB, a four-fold increase from the previous 256 KB limit. This enhancement allows developers to include richer contextual data like LLM prompts, telemetry signals, and complex JSON structures in single events without splitting, compressing, or externalizing data. The feature simplifies event-driven architectures by eliminating the need for data chunking or external storage solutions, and is available in most AWS commercial regions.
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