{"slug": "gpt-6-sol-is-like-gpt-5-6-terra-gpt-6-luna-is-like-gpt-5-6-asteroid", "title": "GPT-6 Sol is like GPT-5.6 Terra, GPT-6 Luna is like GPT-5.6 Asteroid", "summary": "A tester's two-repo, 105-hidden-bug evaluation found GPT-6 Sol (max) fixed only 29.3 bugs, a steep drop from GPT-6 Astra (max) at 45, GPT-5.6 Sol (max) at 43.5, Opus 5.5 (max) at 41.7, and Muse Spark 1.3 (max) at 32.2. The comparison, framed as \"GPT-6 Sol is like GPT-5.6 Terra\" and \"GPT-6 Luna is like GPT-5.6 Asteroid,\" indicates a large degradation in GPT-6 Sol's bug-finding and fixing performance on real work.", "body_md": "Situation today:\nGPT-6 Sol is like GPT-5.6 Terra\nGPT-6 Luna is like GPT-5.6 Asteroid\n\nI finally tested GPT-6 Sol on a real work. 2 repos. 105 hidden bugs. Find and fixed what you can.\nIt looks like a huge degradation. The results:\n- GPT-6 Astra (max): 45\n- GPT-5.6 Sol (max): 43.5\n- Opus 5.5 (max): 41.7\n- Muse Spark 1.3 (max): 32.2\n- GPT-6 Sol (max): 29.3\nUntil", "url": "https://wpnews.pro/news/gpt-6-sol-is-like-gpt-5-6-terra-gpt-6-luna-is-like-gpt-5-6-asteroid", "canonical_source": "https://twitter.com/i/status/2103026209361719406", "published_at": "2026-09-24 18:53:09+00:00", "updated_at": "2026-09-24 18:59:47.147211+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-research"], "entities": ["GPT-6 Sol", "GPT-6 Luna", "GPT-5.6 Terra", "GPT-5.6 Asteroid", "GPT-6 Astra", "GPT-5.6 Sol", "Opus 5.5", "Muse Spark 1.3"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/gpt-6-sol-is-like-gpt-5-6-terra-gpt-6-luna-is-like-gpt-5-6-asteroid", "markdown": "https://wpnews.pro/news/gpt-6-sol-is-like-gpt-5-6-terra-gpt-6-luna-is-like-gpt-5-6-asteroid.md", "text": "https://wpnews.pro/news/gpt-6-sol-is-like-gpt-5-6-terra-gpt-6-luna-is-like-gpt-5-6-asteroid.txt", "jsonld": "https://wpnews.pro/news/gpt-6-sol-is-like-gpt-5-6-terra-gpt-6-luna-is-like-gpt-5-6-asteroid.jsonld"}}