--- title: Advancing price-performance for developers with GPT‑5.6... description: OpenAI's GPT-5.6 model family, including Sol, Terra, and Luna variants, is now integrated into AWS's Kiro coding agent. The update improves price-performance... canonical: https://daily.dev/posts/advancing-price-performance-for-developers-with-gpt-5-6-in-kiro-dwyzifg1j twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Advancing price-performance for developers with GPT‑5.6 in Kiro | daily.dev og:description: OpenAI's GPT-5.6 model family, including Sol, Terra, and Luna variants, is now integrated into AWS's Kiro coding agent. The update improves price-performance... og:url: https://daily.dev/posts/advancing-price-performance-for-developers-with-gpt-5-6-in-kiro-dwyzifg1j og:image: https://api.daily.dev/og/posts/dWyZIFG1j.png og:image:alt: Advancing price-performance for developers with GPT‑5.6 in Kiro 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. # Advancing price-performance for developers with GPT‑5.6 in Kiro **[OpenAI](https://daily.dev/sources/openai)** · 2 min read · 0 upvotes · 0 comments ## Summary OpenAI's GPT-5.6 model family, including Sol, Terra, and Luna variants, is now integrated into AWS's Kiro coding agent. The update improves price-performance for developers using Kiro's spec-driven workflow to plan, build, review, and test software. Benchmarks on Terminal-Bench 2.1 show GPT-5.6 Terra completing successful tasks in Kiro with roughly 82% cost reduction, the result of joint optimization work between OpenAI and AWS. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What cost reduction does GPT-5.6 Terra achieve in Kiro compared to before? GPT-5.6 Terra completes successful tasks in Kiro at roughly 82% cost reduction, based on Terminal-Bench 2.1 testing. This improvement comes from joint optimization work between OpenAI and AWS, combining Kiro's spec-driven approach with the GPT-5.6 model family's better price-performance per token. _Developers evaluating AI coding agent costs can track model pricing shifts like this on daily.dev._ ### Which models make up the GPT-5.6 family available in Kiro? The GPT-5.6 family available in Kiro includes three models named Sol, Terra, and Luna. These are OpenAI's latest flagship model series, brought into Kiro's development workflows to help teams plan, build, review, and test software with stronger performance per dollar than prior models. _Teams comparing AI coding agent model lineups can follow updates like this on daily.dev._ ## Similar posts on daily.dev - [OpenAI’s GPT-5.6 Sol, Terra, and Luna are now available in GitHub Copilot](https://daily.dev/posts/openai-s-gpt-5-6-sol-terra-and-luna-are-now-available-in-github-copilot-zqr1kvlht) · GitHub Changelog · 0 upvotes · 0 comments - [OpenAI GPT-5.6 Terra and Luna now available on Amazon Bedrock in AWS GovCloud \(US\)](https://daily.dev/posts/openai-gpt-5-6-terra-and-luna-now-available-on-amazon-bedrock-in-aws-govcloud-us--s6d0s7dpn) · AWS · 0 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#openai](https://daily.dev/tags/openai), [#spec-driven-development](https://daily.dev/tags/spec-driven-development) [View this post on daily.dev](https://daily.dev/posts/advancing-price-performance-for-developers-with-gpt-5-6-in-kiro-dwyzifg1j) ```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":"Advancing price-performance for developers with GPT‑5.6 in Kiro","url":"https://daily.dev/posts/advancing-price-performance-for-developers-with-gpt-5-6-in-kiro-dwyzifg1j","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/advancing-price-performance-for-developers-with-gpt-5-6-in-kiro-dwyzifg1j"},"datePublished":"2026-08-24T20:05:40.384Z","dateModified":"2026-08-24T20:06:53.111Z","description":"OpenAI's GPT-5.6 model family, including Sol, Terra, and Luna variants, is now integrated into AWS's Kiro coding agent. 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