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OpenAI GPT-5.4 and GPT-5.5 models now available in US East (N. Virginia) on Amazon Bedrock

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AWS·4 weeks ago · Jun 11, 2026, 12:12 AMFeatureAI-assisted summary

Summary

GPT-5.4 and GPT-5.5 are now available in the US East (N. Virginia) region on Amazon Bedrock.
Both models support a 272K‑token context window, text and image inputs, server‑side/client‑side tool calling, projects, and response streaming via the Responses API.
They enable advanced reasoning, coding, document workflows, and long‑running agentic tasks for generative AI applications.

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