--- format: "aidr-story-markdown/v1" id: "d5c44601328f5f74009b3f37c1936c3fbe1b9f4016ecd73711974cc8a500af1c" canonical_url: "https://aidr.today/d5c44601?lang=en" title: "Humansand's Ampersand Coding AI Matches Fable 5.1 at 70% Lower Cost" lang: "en" requested_lang: "en" available_langs: ["en","vi"] translation_fallback: null fallback_fields: [] published_at: "2026-11-05T20:44:01.000Z" category: "Tools" topics: ["coding","devtools"] source_urls: ["https://marketbrief.now/ai/humansands-ampersand-coding-ai-matches-fable-51-at-70percent-lower-cost-a1af361a","https://huggingnews.com/ai/humansands-ampersand-coding-ai-matches-fable-51-at-70percent-lower-cost-a1af361a"] summary: "The multi-agent version of Humansand's Ampersand AI assistant scored 92.2% on the SWE-bench Pro v2 HARD-51 benchmark, matching the results of competitors Fable 5.1 and Gemini 4 Argon. The company said the model achieves this parity without additional coding-specific training and is 70% cheaper to run than Fable 5.1. Ampersand also recorded a 77.9% score on the DeepSWE v1.1 benchmark, placing it ahead of Grok-4.7 and Deepseek-v4-pro." --- # Humansand's Ampersand Coding AI Matches Fable 5\.1 at 70% Lower Cost > [Open the canonical story]() **Published:** 2026-11-05T20:44:01.000Z **Category:** Tools **Topics:** coding, devtools ## Summary The multi\-agent version of Humansand's Ampersand AI assistant scored 92\.2% on the SWE\-bench Pro v2 HARD\-51 benchmark, matching the results of competitors Fable 5\.1 and Gemini 4 Argon\. The company said the model achieves this parity without additional coding\-specific training and is 70% cheaper to run than Fable 5\.1\. Ampersand also recorded a 77\.9% score on the DeepSWE v1\.1 benchmark, placing it ahead of Grok\-4\.7 and Deepseek\-v4\-pro\. ## Sources - [Story source]() - [Story source]()