Bedrock grounds five GPT model lines in AWS search

Amazon Bedrock made web grounding generally available across 5 OpenAI GPT model lines—GPT-5.4, GPT-5.5, and GPT-5.6 Sol, Terra, and Luna—in three US regions. AWS says Bedrock Web Search queries an Amazon-operated index spanning tens of billions of documents, returns citations through one OpenAI-compatible API call, and keeps processing inside AWS with zero data egress; the deeper launch guide notes that live-web retrieval is not enabled yet, so today’s tool searches the pre-indexed corpus. For builders following the shift from hard-wired tools toward searchable agent infrastructure, the release removes a vendor integration and compliance review, but freshness tests should precede any decision to retire an existing search provider.