{"rewrite":{"id":"r_216265c9c3a31eafe353b3d2","clusterId":"c_d021baedd83478cf4b3a5665","slug":"gpt-6-astra-scores-67-on-coding-index-trails-fable-5-1","model":"deepseek-v4-flash","headline":"GPT-6 Astra Scores 67 on Coding Benchmark, Trails Fable 5.1","summary":"OpenAI's GPT-6 Astra, released September 3, 2026, scored 67 on the Artificial Analysis Coding Agent Index, tying Fable 5 and trailing Fable 5.1's 70. The model's token efficiency improved sharply: at maximum reasoning on Codex, GPT-6 Astra consumed about a third of the tokens GPT-5.6 Sol used and a seventh of what Claude Opus 5 used. That efficiency carries into per-task cost, where GPT-6 Astra matches GPT-5.6 Sol's cost while scoring 2 points higher, and costs less than half of Fable 5 per task at the same 67 score. On the Artificial Analysis Intelligence Index, GPT-6 Astra scored 61, tied with GPT-5.6 Sol and Muse Spark 1.3 and 5 points below Fable 5.1's 66. Its API price rose 2.5 times to $10 per million input tokens and $50 per million output tokens, which offsets the token gains on general intelligence. The hallucination rate on the AA-Omniscience benchmark fell from 92 percent to 51 percent at maximum reasoning. Separately, GPT-6 Astra completed the puzzle FPS Portal without human help, at an API cost of $571.18.","whyItMatters":"The results show GPT-6 Astra is a coding-focused release: it reaches top-tier agent scores at low per-task cost, while its general intelligence score stays flat against the previous generation.","webCardHtml":"\u003cp\u003eThe benchmark results paint GPT-6 Astra as a specialized tool rather than a general upgrade. Artificial Analysis found the model gained about 80 Elo points on AA-Briefcase, its long-horizon knowledge task, but lost about 80 Elo points on GDPval-AA v2, which measures economically valuable work across 44 occupations. It also slipped 2 to 3 points against GPT-5.6 Sol on banking support, SciCode, and long-context reasoning.\u003c/p\u003e\u003cp\u003eThe model\u0026#39;s 3D work drew attention separately: OpenAI staff posted examples of GPT-6 Astra building a walkable demo house in Blender and exporting it to Unreal Engine 5, and recreating San Francisco\u0026#39;s Palace of Fine Arts from hundreds of reference photos. The Portal run, reported by GitHub user cozyblaze, used a modified SourcePauseTool to pause the game while the model reasoned, finishing in under two hours of game time at a cost of $571.18 in API tokens.\u003c/p\u003e\u003cp\u003eNVIDIA CEO Jensen Huang said on X that GPT-6 Astra was trained on more than 100,000 NVIDIA Grace Blackwell NVLink72 units and called it the arrival of AGI; OpenAI president Greg Brockman told Stratechery it was the first time the company trained on that scale. Sources differ on the Portal run\u0026#39;s real-time length, with reports citing 23 hours 38 minutes and 23 hours 43 minutes.\u003c/p\u003e","blueskyPost":"GPT-6 Astra beat Portal in under two hours of game time. The API bill for the run: $571.18.","twitterPost":"GPT-6 Astra was trained on 100,000+ NVIDIA GB200 NVL72 units. Jensen Huang says AGI has arrived. Greg Brockman calls it OpenAI's first training run at that scale.","threadsPost":"GPT-6 Astra ties Fable 5 on coding while using a third of the tokens, a clear efficiency win. But OpenAI's API pricing cancels the cost benefit, and Fable 5.1 sits three points higher. The scoreboard flatters Astra; the economics do not.","newsletterBlurb":"OpenAI's GPT-6 Astra scored 67 on Artificial Analysis's coding agent benchmark, tying Fable 5 and trailing Fable 5.1, while cutting token use to a third of the previous generation. The model also cleared Portal on its own at a $571 API cost, and was trained on more than 100,000 NVIDIA GPUs.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260907-artificial-analysis-gpt-6-astra/\",\"title\":\"GPT-6 AstraがAIコーディング性能でトップ級の67点、圧倒的なトークン効率を示すもFable 5.1には届かず\"},{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260907-gpt-6-astra-3d-modeling/\",\"title\":\"GPT-6 Astraの3Dモデリング性能を示す作例が続々登場、短い指示でBlenderを巧みに操作して3D作品を作れる\"},{\"source\":\"Game Spark\",\"url\":\"http://www.gamespark.jp/article/2026/09/07/171888.html\",\"title\":\"AIモデル「GPT-6 Astra」が『Portal』をゲーム内時間2時間足らずで攻略-実時間では23時間38分\"},{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260908-gpt-6-astra-plays-portal/\",\"title\":\"GPT-6 AstraがパズルFPS『Portal』を人間の助けなしにクリア、コストは約9万円\"},{\"source\":\"GameBusiness.jp\",\"url\":\"https://www.gamebusiness.jp/article/2026/09/08/27944.html\",\"title\":\"AIモデル「GPT-6 Astra」が『Portal』をゲーム内時間2時間足らずで攻略-実時間では23時間38分\"},{\"source\":\"Game Spark\",\"url\":\"http://www.gamespark.jp/article/2026/09/08/171902.html\",\"title\":\"AI「GPT-6 Astra」は10万基以上のNVIDIA製GPUでトレーニングされていた。『Portal』『RimWorld』などクリアしたことでも話題のAI\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":14260,"outputTokens":5551,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1788781471,"createdAt":"2026-09-07T11:41:11.000Z","publishedAt":"2026-09-07T11:43:25.000Z","updatedAt":"2026-09-08T02:25:59.000Z"},"cluster":{"id":"c_d021baedd83478cf4b3a5665","canonicalTitle":"GPT-6 AstraがAIコーディング性能でトップ級の67点、圧倒的なトークン効率を示すもFable 5.1には届かず","representativeArticleId":"a_ce189cd76fc41920fddad826","sourceCount":5,"writtenSourceCount":3,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"written","firstSeenAt":"2026-09-07T11:00:00.000Z","lastSeenAt":"2026-09-11T06:35:00.000Z","updatedAt":"2026-09-11T06:40:41.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/434/4434277/?rss","title":"OpenAI、月額200ドルのChatGPT Pro新規契約を一時停止　Astra人気爆発で"},{"source":"Automaton","url":"https://automaton-media.com/articles/newsjp/20260908-465804/","title":"最新AI「GPT-6 Astra」で“『スマブラ』クローン”が作られるも、なんとも言えない完成度に議論勃発。「当面は仕事が安泰」と皮肉るゲーム開発者も"},{"source":"GIGAZINE","url":"https://gigazine.net/news/20260910-openai-astra-high-growth/","title":"GPT-6 Astraが人気すぎてOpenAIのサーバーがピンチでProプランの新規サブスク契約が一時停止されるかも"},{"source":"GameBusiness.jp","url":"https://www.gamebusiness.jp/article/2026/09/09/27959.html","title":"AI「GPT-6 Astra」は10万基以上のNVIDIA製GPUでトレーニングされていた。『Portal』『RimWorld』などクリアしたことでも話題のAI"},{"source":"Game Spark","url":"http://www.gamespark.jp/article/2026/09/08/171902.html","title":"AI「GPT-6 Astra」は10万基以上のNVIDIA製GPUでトレーニングされていた。『Portal』『RimWorld』などクリアしたことでも話題のAI"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":["GPT-6 Astra scored 67 on the Artificial Analysis Coding Agent Index, tying Fable 5 and trailing Fable 5.1's 70.","GPT-6 Astra's API pricing is $10 per million input tokens and $50 per million output tokens, 2.5 times GPT-5.6 Sol's rates.","GPT-6 Astra completed Portal without human help, using $571.18 in API tokens and under two hours of in-game time.","GPT-6 Astra was trained on more than 100,000 NVIDIA Grace Blackwell NVLink72 units, according to NVIDIA CEO Jensen Huang.","GPT-6 Astra's hallucination rate on the AA-Omniscience benchmark fell from 92 percent to 51 percent at maximum reasoning."]}