{"rewrite":{"id":"r_de316fa45556f866a7031c25","clusterId":"c_7a29bd35aca999acd9b5c624","slug":"openai-releases-gpt-6-1-terra-as-a-cheaper-faster-model","model":"deepseek-v4-1-flash","headline":"OpenAI Releases GPT-6.1 Terra as a Cheaper, Faster Model","summary":"OpenAI released GPT-6.1 Terra on October 27, 2026, Japan time. The model is a major update to GPT-5.6 Terra, released as 6.1 while skipping 6.0. OpenAI offers four model tiers: the flagship Astra, high-performance Sol, balanced Terra, and low-cost Luna. GPT-6.1 Terra is available via API and to Plus, Pro, Enterprise, and Edu users in ChatGPT Work and Codex. API pricing is $1 per million input tokens, $0.05 cached input, and $5 output, held to half the standard price of GPT-6.1 Sol, according to ASCII.jp. The model was trained on data up to June 1, 2026, with a context window of 1.05 million tokens and maximum output of 128,000 tokens. Reasoning depth has six levels: none, low, medium, high, xhigh, and max. OpenAI says GPT-6.1 Terra handles image understanding and PC operation at lower cost than higher-end models.","whyItMatters":"On OpenAI's OSWorld 2.1 PC operation test, GPT-6.1 Terra matched GPT-6 Astra's score at lower cost while running three times faster, shifting the cost-performance tradeoff for agent work.","webCardHtml":"\u003cp\u003eOn the Agents\u0026#39; Last Exam benchmark, which includes tasks such as building 3D models from blueprints, GPT-6.1 Terra scored 15 points higher than GPT-5.6 Terra at medium reasoning, and cost per task was about one-third of the previous model\u0026#39;s. On Terminal-Bench 4.0, which tests problem solving through command operations, it reached a 50.3% success rate at the maximum reasoning setting, up from the 21.5% published figure for the older Terra. In an internal evaluation using prompts designed to induce factual errors, the error rate at weak reasoning fell from 53.6% to 16.7%; at maximum reasoning it was 4.3%.\u003c/p\u003e\n\u003cp\u003eThird-party group Artificial Analysis scored the model 48 on its Intelligence Index v4.3.2, within 4 points of GPT-6.1 Sol. On MMMU-Pro(Vision), GPT-6.1 Terra reached a comparable score to GPT-6 Astra at lower cost. On Agents\u0026#39; Last Exam it was comparable to Astra at one-tenth the cost. OpenAI employee Victor E. Nunez said \u0026#34;when GPT-6.1 Terra and GPT-6.1 Sol were made to fill out a web page form, GPT-6.1 Terra completed the task more than 2 minutes faster.\u0026#34; CEO Sam Altman also cited the model\u0026#39;s PC operation performance. OpenAI notes Sol and Astra remain better suited to the most complex coding work. A safety system card for Terra was published as an addendum to the GPT-6 Astra System Card.\u003c/p\u003e","blueskyPost":"OpenAI's lineup now runs Astra, Sol, Terra and Luna, and Terra's $5 output rate is half of GPT-6.1 Sol's. The tier names act as a price ladder as much as a capability ranking.","twitterPost":"OpenAI's four tiers, Astra, Sol, Terra and Luna, now split by price as much as by capability. Terra's output rate is half of GPT-6.1 Sol's.","threadsPost":"OpenAI's four tiers now read as a price ladder: Astra, Sol, Terra and Luna, with GPT-6.1 Terra's $5 per million output tokens at half of GPT-6.1 Sol's rate. The version number also skips 6.0, landing at 6.1 from GPT-5.6 Terra.","newsletterBlurb":"OpenAI released GPT-6.1 Terra on October 27, 2026, a balanced-tier update priced at half of GPT-6.1 Sol. It matched GPT-6 Astra on some PC operation and image tests at lower cost, and runs three times faster than Astra on OSWorld 2.1. The old Terra's command-operation score of 21.5% on Terminal-Bench 4.0 rises to 50.3%.","attributionJson":"[{\"source\":\"ASCII.jp\",\"url\":\"https://ascii.jp/elem/000/004/445/4445908/?rss\",\"title\":\"OpenAI Announces \\\"GPT-6.1 Terra\\\" - Image Understanding and PC Operation at Low Cost\"},{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20261027-gpt-6-1-terra/\",\"title\":\"\\\"GPT-6.1 Terra\\\" debuts as a cost-effective, high-speed model that matches GPT-6 Astra on some tests\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":14452,"outputTokens":4853,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1793078449,"createdAt":"2026-10-27T05:17:51.000Z","publishedAt":"2026-10-27T05:19:26.000Z","updatedAt":"2026-10-27T05:19:26.000Z"},"cluster":{"id":"c_7a29bd35aca999acd9b5c624","canonicalTitle":"「GPT-6.1 Terra」が登場、コスパ良好＆高速なモデルでテストによってはGPT-6 Astraと同等性能","representativeArticleId":"a_b273a5ae410e878442f403a8","sourceCount":2,"writtenSourceCount":2,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"GPT-6.1 Terra\",\"GPT-6 Astra\"],\"studios\":[\"OpenAI\"],\"people\":[],\"type\":\"announcement\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-27T02:13:00.000Z","lastSeenAt":"2026-10-27T02:13:00.000Z","updatedAt":"2026-10-27T05:19:27.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/445/4445908/?rss","title":"OpenAI「GPT-6.1 Terra」発表　画像理解やPC操作を低コストで"},{"source":"GIGAZINE","url":"https://gigazine.net/news/20261027-gpt-6-1-terra/","title":"「GPT-6.1 Terra」が登場、コスパ良好＆高速なモデルでテストによってはGPT-6 Astraと同等性能"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["GPT-6.1 Terra","GPT-6 Astra"],"studios":["OpenAI"],"people":[],"type":"announcement","domain":"other","is_roundup":false},"keyFacts":["OpenAI released GPT-6.1 Terra on October 27, 2026, Japan time.","GPT-6.1 Terra API pricing is $1 per million input tokens and $5 per million output tokens, half the standard price of GPT-6.1 Sol, according to ASCII.jp.","GPT-6.1 Terra was trained on data up to June 1, 2026, and has a context window of 1.05 million tokens with maximum output of 128,000 tokens.","GPT-6.1 Terra reached a 50.3% success rate on Terminal-Bench 4.0 at maximum reasoning, against 21.5% for GPT-5.6 Terra.","Artificial Analysis scored GPT-6.1 Terra at 48 on its Intelligence Index v4.3.2, within 4 points of GPT-6.1 Sol."],"pageLinks":{"healthSlugs":["gpt-6-1-terra","gpt-6-astra","openai"],"storySlugs":[],"entities":[{"slug":"gpt-6-1-terra","supported":1,"disputed":0,"contradicted":0,"unverified":4,"overall":"green","story_count":1,"has_dossier":false},{"slug":"gpt-6-astra","supported":3,"disputed":0,"contradicted":0,"unverified":6,"overall":"green","story_count":8,"has_dossier":true},{"slug":"openai","supported":8,"disputed":0,"contradicted":1,"unverified":22,"overall":"red","story_count":29,"has_dossier":true}],"stories":[],"entitiesOk":true,"storiesOk":true}}