--- title: Show HN: Echo – Fable-level results at 1/3 the cost... description: Echo is a system that dynamically routes and combines multiple open-weight LLMs (including GLM-5.2 and Kimi K2.7) per request, allocating compute based on... canonical: https://daily.dev/posts/show-hn-echo-fable-level-results-at-1-3-the-cost-using-open-weight-models-dgxuunlly twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Show HN: Echo – Fable-level results at 1/3 the cost using open-weight models | daily.dev og:description: Echo is a system that dynamically routes and combines multiple open-weight LLMs (including GLM-5.2 and Kimi K2.7) per request, allocating compute based on... og:url: https://daily.dev/posts/show-hn-echo-fable-level-results-at-1-3-the-cost-using-open-weight-models-dgxuunlly og:image: https://api.daily.dev/og/posts/dgXUUNLly.png og:image:alt: Show HN: Echo – Fable-level results at 1/3 the cost using open-weight models 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. # Show HN: Echo – Fable-level results at 1/3 the cost using open-weight models **[Hacker News](https://daily.dev/sources/hn)** · 2 min read · 0 upvotes · 0 comments ## Summary Echo is a system that dynamically routes and combines multiple open-weight LLMs (including GLM-5.2 and Kimi K2.7) per request, allocating compute based on problem complexity. By identifying complementary model strengths and combining outputs intelligently, it achieves benchmark results comparable to Fable at roughly one-third the inference cost. The system exposes a chat interface and an OpenAI-compatible API. The author notes ongoing challenges in allocation failures and plans to extend evaluation to coding and agentic tasks. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Outperforming Fable 5 at half the price: meet model synthesis, a new server-side tool on DigitalOcean Inference Engine](https://daily.dev/posts/outperforming-fable-5-at-half-the-price-meet-model-synthesis-a-new-server-side-tool-on-digitalocea-kbdcauzx9) · DigitalOcean · 0 upvotes · 0 comments - [Why Your Best Model Is Two Models: Routing Between Kimi K3 and Claude](https://daily.dev/posts/why-your-best-model-is-two-models-routing-between-kimi-k3-and-claude-ejhl4kv4j) · DigitalOcean Community · 0 upvotes · 0 comments --- Tags: [#ai-inference](https://daily.dev/tags/ai-inference) [View this post on daily.dev](https://daily.dev/posts/show-hn-echo-fable-level-results-at-1-3-the-cost-using-open-weight-models-dgxuunlly) ```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":"Show HN: Echo – Fable-level results at 1/3 the cost using open-weight models","url":"https://daily.dev/posts/show-hn-echo-fable-level-results-at-1-3-the-cost-using-open-weight-models-dgxuunlly","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/show-hn-echo-fable-level-results-at-1-3-the-cost-using-open-weight-models-dgxuunlly"},"datePublished":"2026-07-23T20:30:15.866Z","dateModified":"2026-07-24T02:13:06.607Z","description":"Echo is a system that dynamically routes and combines multiple open-weight LLMs (including GLM-5.2 and Kimi K2.7) per request, allocating compute based on...","image":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","thumbnailUrl":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","isAccessibleForFree":true,"articleSection":"Hacker News","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hacker News","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/hn","url":"https://daily.dev/sources/hn"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/show-hn-echo-fable-level-results-at-1-3-the-cost-using-open-weight-models-dgxuunlly","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ai-inference","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hacker News","item":"https://daily.dev/sources/hn"},{"@type":"ListItem","position":3,"name":"Show HN: Echo – Fable-level results at 1/3 the cost using open-weight models"}]} ```