--- title: OpenAI GPT-5.6 Terra and Luna now available on Amazon... description: OpenAI's GPT-5.6 Terra and Luna models are now generally available on Amazon Bedrock within AWS GovCloud (US-West and US-East) regions. Terra targets balanced... canonical: https://daily.dev/posts/openai-gpt-5-6-terra-and-luna-now-available-on-amazon-bedrock-in-aws-govcloud-us--s6d0s7dpn twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: OpenAI GPT-5.6 Terra and Luna now available on Amazon Bedrock in AWS GovCloud (US) | daily.dev og:description: OpenAI's GPT-5.6 Terra and Luna models are now generally available on Amazon Bedrock within AWS GovCloud (US-West and US-East) regions. Terra targets balanced... og:url: https://daily.dev/posts/openai-gpt-5-6-terra-and-luna-now-available-on-amazon-bedrock-in-aws-govcloud-us--s6d0s7dpn og:image: https://api.daily.dev/og/posts/S6D0s7dPN.png og:image:alt: OpenAI GPT-5.6 Terra and Luna now available on Amazon Bedrock in AWS GovCloud (US) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # OpenAI GPT-5.6 Terra and Luna now available on Amazon Bedrock in AWS GovCloud (US) **[AWS](https://daily.dev/sources/aws)** · 2 min read · 0 upvotes · 0 comments ## Summary OpenAI's GPT-5.6 Terra and Luna models are now generally available on Amazon Bedrock within AWS GovCloud (US-West and US-East) regions. Terra targets balanced performance at roughly half the cost of GPT-5.5, while Luna offers fast, low-cost inference. Both support 1 million token context windows and prompt caching with explicit cache breakpoints that discount repeated context by 90%, useful for coding agents, genomics analysis, and cybersecurity research workflows. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Are OpenAI GPT-5.6 Terra and Luna models available on Amazon Bedrock in GovCloud? Yes, GPT-5.6 Terra and Luna are generally available on Amazon Bedrock in both AWS GovCloud (US-West) and AWS GovCloud (US-East) regions. Terra delivers GPT-5.5-level performance at roughly half the cost, while Luna offers faster, lower-cost inference. Both support 1 million token context windows and can be accessed through the Amazon Bedrock Console or the Responses API on the bedrock-mantle endpoint. _daily.dev helps teams evaluating GovCloud-ready LLM options track new Bedrock model launches as they ship._ ### How does prompt caching pricing work for GPT-5.6 on Amazon Bedrock? GPT-5.6 supports prompt caching with explicit cache breakpoints, billing repeated context across agentic workflows at a 90% discount. This prevents costs from compounding as usage scales, which matters for long-running agent workflows that repeatedly send similar context, such as autonomous coding agents or multi-turn conversations with large shared context. _Engineers optimizing agent costs can follow pricing changes like this on daily.dev._ ### What context window size do GPT-5.6 Terra and Luna support on Bedrock? GPT-5.6 Terra and Luna support 1 million token context windows on Amazon Bedrock, allowing full codebases, lengthy documents, and multi-turn agent histories to be processed in a single request without chunking or information loss. This enables broader reasoning over context for more accurate and coherent responses. _daily.dev keeps developers building long-context AI agents current on model capability updates._ ## Similar posts on daily.dev - [Get started with OpenAI GPT-5.6 Sol, Terra, and Luna on Amazon Bedrock](https://daily.dev/posts/get-started-with-openai-gpt-5-6-sol-terra-and-luna-on-amazon-bedrock-iu7kntywe) · AWS · 0 upvotes · 0 comments - [Amazon Bedrock now supports OpenAI models in India](https://daily.dev/posts/amazon-bedrock-now-supports-openai-models-in-india-7hhn079an) · AWS · 0 upvotes · 0 comments - [OpenAI GPT-5.4 generally available on Amazon Bedrock in AWS GovCloud \(US-West\)](https://daily.dev/posts/openai-gpt-5-4-generally-available-on-amazon-bedrock-in-aws-govcloud-us-west--zudfnbmf2) · AWS · 1 upvotes · 0 comments --- Tags: [#aws](https://daily.dev/tags/aws), [#llm](https://daily.dev/tags/llm), [#openai](https://daily.dev/tags/openai), [#ai-inference](https://daily.dev/tags/ai-inference), [#amazon-bedrock](https://daily.dev/tags/amazon-bedrock) [View this post on daily.dev](https://daily.dev/posts/openai-gpt-5-6-terra-and-luna-now-available-on-amazon-bedrock-in-aws-govcloud-us--s6d0s7dpn) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"OpenAI GPT-5.6 Terra and Luna now available on Amazon Bedrock in AWS GovCloud (US)","url":"https://daily.dev/posts/openai-gpt-5-6-terra-and-luna-now-available-on-amazon-bedrock-in-aws-govcloud-us--s6d0s7dpn","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/openai-gpt-5-6-terra-and-luna-now-available-on-amazon-bedrock-in-aws-govcloud-us--s6d0s7dpn"},"datePublished":"2026-08-24T14:07:44.898Z","dateModified":"2026-08-24T14:08:20.843Z","description":"OpenAI's GPT-5.6 Terra and Luna models are now generally available on Amazon Bedrock within AWS GovCloud (US-West and US-East) regions. 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