{"slug": "gpt-5-6-sol-clarification-vs-guess-benchmark", "title": "GPT-5.6 Sol clarification vs guess benchmark", "summary": "A developer benchmarked GPT-5.6 Sol on 40 tasks with one to four plausible choices to compare letting the model guess against asking one deterministic clarifying question first. Clarifying cut the average API cost per successful completion by 29.5% ($0.000543 versus $0.000771) and reduced median model latency to 1458 ms from 1660 ms, with savings rising from 6.5% at one choice to 45.2% at four choices. The author notes the test is a small synthetic benchmark and excludes human response time.", "body_md": "Question:\n\nWhen is it cheaper to ask one clarifying question than let the model guess?\n\nModel: GPT-5.6 Sol\n\nReasoning effort: Low\n\nTasks: 40\n\nAmbiguity levels: 1 to 4 plausible choices\n\nTwo strategies were compared:\n\nThe model completes the task without the missing user preference.\n\nIf the first answer is wrong, a simulated user correction is provided and the model gets a second API call.\n\nThe system asks one deterministic clarification question first.\n\nThe missing preference is then supplied before the model completes the task.\n\nGuess first:\n\n- First-pass success: 75%\n- Final success after correction: 100%\n- Rework rate: 25%\n- Average API calls/task: 1.25\n- Average cost/task: $0.000771\n- Median model latency: 1660 ms\n\nClarify first:\n\n- Success: 100%\n- Average API calls/task: 1.00\n- Average cost/task: $0.000543\n- Median model latency: 1458 ms\n\nClarification reduced API cost to successful completion by 29.5%.\n\n1 choice:\n\n- Guess success: 100%\n- Clarification saving: 6.5%\n\n2 choices:\n\n- Guess success: 80%\n- Clarification saving: 20.4%\n\n3 choices:\n\n- Guess success: 70%\n- Clarification saving: 33.5%\n\n4 choices:\n\n- Guess success: 50%\n- Clarification saving: 45.2%\n\nClarification adds one user interaction.\n\nHuman response time is not included in the latency numbers. latency figures are model/API latency only.\n\nThis is a small synthetic benchmark.", "url": "https://wpnews.pro/news/gpt-5-6-sol-clarification-vs-guess-benchmark", "canonical_source": "https://gist.github.com/ray2201/79db4a7b6b4e135513b3dbc1766131e4", "published_at": "2026-10-07 13:40:45+00:00", "updated_at": "2026-10-07 14:46:22.525755+00:00", "lang": "en", "topics": ["large-language-models", "ai-agents", "ai-tools"], "entities": ["GPT-5.6 Sol"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/gpt-5-6-sol-clarification-vs-guess-benchmark", "markdown": "https://wpnews.pro/news/gpt-5-6-sol-clarification-vs-guess-benchmark.md", "text": "https://wpnews.pro/news/gpt-5-6-sol-clarification-vs-guess-benchmark.txt", "jsonld": "https://wpnews.pro/news/gpt-5-6-sol-clarification-vs-guess-benchmark.jsonld"}}