[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article-gpt-56-benchmarks-sol-coding-cost-en":3,"article-related-gpt-56-benchmarks-sol-coding-cost-en":30,"series-model-release-9390f6d0-7e74-4fd8-b25a-16ca9b7e4e62":75},{"id":4,"slug":5,"title":6,"content":7,"summary":8,"source":9,"source_url":10,"author":11,"image_url":12,"cover_image":12,"category":13,"language":14,"translated_content":11,"related_article_id":15,"keywords":16,"key_takeaways":22,"views":26,"created_at":27,"published_at":28,"topic_cluster_id":29},"9390f6d0-7e74-4fd8-b25a-16ca9b7e4e62","gpt-56-benchmarks-sol-coding-cost-en","GPT-5.6 benchmarks: Sol tops coding, cuts costs","\u003Cp>Benchmarking GPT-5.6 can now be read as a cost story, not just a score story. Artificial Analysis says \u003Ca href=\"\u002Ftag\u002Fopenai\">OpenAI\u003C\u002Fa>’s new family lands with three tiers, Sol, Terra and Luna, and a pricing model that changes how cached tokens are billed.\u003C\u002Fp>\u003Cp data-speakable=\"summary\">Artificial Analysis benchmarked GPT-5.6 Sol, Terra and Luna across intelligence, coding speed and cost.\u003C\u002Fp>\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>項目\u003C\u002Fth>\u003Cth>數值\u003C\u002Fth>\u003C\u002Ftr>\u003C\u002Fthead>\u003Ctbody>\u003Ctr>\u003Ctd>Article date\u003C\u002Ftd>\u003Ctd>July 9, 2026\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>GPT-5.6 Sol intelligence score\u003C\u002Ftd>\u003Ctd>59\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Claude Fable 5 comparison\u003C\u002Ftd>\u003Ctd>60\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>GPT-5.6 Sol coding score\u003C\u002Ftd>\u003Ctd>80\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Sol cost per Intelligence Index task\u003C\u002Ftd>\u003Ctd>$1.04\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Terra cost per Intelligence Index task\u003C\u002Ftd>\u003Ctd>$0.55\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Luna cost per Intelligence Index task\u003C\u002Ftd>\u003Ctd>$0.21\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftbody>\u003C\u002Ftable>\u003Ch2>What changed\u003C\u002Fh2>\u003Cp>Artificial Analysis says \u003Ca href=\"https:\u002F\u002Fopenai.com\" target=\"_blank\" rel=\"noopener\">OpenAI\u003C\u002Fa> pre-released GPT-5.6 Sol, Terra and Luna for evaluation. In the \u003Ca href=\"https:\u002F\u002Fartificialanalysis.ai\" target=\"_blank\" rel=\"noopener\">Artificial Analysis\u003C\u002Fa> Intelligence Index, Sol (max) scored 59, just one point behind \u003Ca href=\"\u002Ftag\u002Fclaude\">Claude\u003C\u002Fa> Fable 5 (max), while costing about one third as much per task.\u003C\u002Fp>\n\u003Cfigure class=\"my-6\">\u003Cimg src=\"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1783967562590-oqcz.png\" alt=\"GPT-5.6 benchmarks: Sol tops coding, cuts costs\" class=\"rounded-xl w-full\" loading=\"lazy\" \u002F>\u003C\u002Ffigure>\n\u003Cp>Terra and Luna trail Sol on raw intelligence, but they shift the price curve. Terra (55) and Luna (51) come in at roughly 50% and 80% lower cost per task than Sol, and Luna is said to match or beat GLM-5.2 and \u003Ca href=\"\u002Ftag\u002Fgemini\">Gemini\u003C\u002Fa> 3.5 Flash at lower cost. Artificial Analysis says Sol and Luna stay on the Pareto frontier across reasoning levels, while Terra does not.\u003C\u002Fp>\u003Cul>\u003Cli>Sol: 59 intelligence score, $1.04 per task\u003C\u002Fli>\u003Cli>Terra: 55 intelligence score, $0.55 per task\u003C\u002Fli>\u003Cli>Luna: 51 intelligence score, $0.21 per task\u003C\u002Fli>\u003Cli>Sol leads the Coding Agent Index at 80\u003C\u002Fli>\u003C\u002Ful>\u003Cp>On coding, Sol (max) leads the new Coding \u003Ca href=\"\u002Ftag\u002Fagent\">Agent\u003C\u002Fa> Index with a score of 80 in OpenAI’s \u003Ca href=\"\u002Ftag\u002Fcodex\">Codex\u003C\u002Fa> harness. That index combines DeepSWE, Terminal-Bench v2 and SWE-Atlas-QnA, and the report says Sol tops all three evaluations, while also undercutting Claude Fable 5 and Claude Opus 4.8 on per-task cost.\u003C\u002Fp>\u003Ch2>Why it matters\u003C\u002Fh2>\u003Cp>The update gives buyers a cleaner tradeoff chart. Teams choosing between model quality and spend now have three GPT-5.6 price tiers, plus cache-read discounts and a new cache-write charge that better reflects memory use. For developers running agentic workloads, that can change which model is cheapest at scale.\u003C\u002Fp>\n\u003Cfigure class=\"my-6\">\u003Cimg src=\"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1783967562135-wxd3.png\" alt=\"GPT-5.6 benchmarks: Sol tops coding, cuts costs\" class=\"rounded-xl w-full\" loading=\"lazy\" \u002F>\u003C\u002Ffigure>\n\u003Cp>It also shows where OpenAI is pressing hardest: coding agents and enterprise-style document work. Sol posts the highest Presentation Elo in AA-Briefcase and ranks second overall there, which points to stronger output for slides, spreadsheets and other mixed-format tasks. The main question is whether teams value Sol’s top-end coding and near-frontier intelligence enough to pay for it, or whether Luna’s lower cost is the better fit.\u003C\u002Fp>\u003Cp>For now, GPT-5.6 looks less like one model launch than a pricing and performance ladder. The real choice is not whether GPT-5.6 is good, but which tier is cheapest for the job.\u003C\u002Fp>","Artificial Analysis says GPT-5.6 Sol nears Claude Fable 5 on intelligence, leads coding tests, and adds cache-write pricing.","artificialanalysis.ai","https:\u002F\u002Fartificialanalysis.ai\u002Farticles\u002Fgpt-5-6-has-landed",null,"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1783967562590-oqcz.png","model-release","en","24833429-1179-4849-aa05-282db79cd17d",[17,18,19,20,21],"GPT-5.6","OpenAI","benchmarks","coding agents","pricing",[23,24,25],"Sol scores 59 in intelligence and 80 in coding, near the top of the field.","Terra and Luna lower task cost sharply, with Luna at $0.21 per Intelligence Index task.","OpenAI adds cache-write pricing and a max reasoning level in GPT-5.6.",1,"2026-07-13T18:32:16.873964+00:00","2026-07-13T18:32:16.863+00:00","1bae1133-d241-4581-9332-fbf39690c319",{"tags":31,"relatedLang":34,"relatedPosts":38},[32],{"name":18,"slug":33},"openai",{"id":15,"slug":35,"title":36,"language":37},"gpt-56-benchmarks-sol-coding-cost-zh","GPT-5.6 三層定價，Sol 先拿下編碼榜","zh",[39,45,51,57,63,69],{"id":40,"slug":41,"title":42,"cover_image":43,"image_url":43,"created_at":44,"category":13},"85d91774-503a-426d-8be1-bf059f5c6d88","gpt-56-sol-review-faster-coding-lower-cost-en","GPT-5.6 Sol Review: Faster Coding, Lower Cost","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1783972981664-hujk.png","2026-07-13T20:02:36.728668+00:00",{"id":46,"slug":47,"title":48,"cover_image":49,"image_url":49,"created_at":50,"category":13},"142b5945-8715-4a6f-b8dd-6c1b99296a95","gpt-5-6-luna-terra-sol-release-en","GPT-5.6 family lands with Luna, Terra, 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