{"rewrite":{"id":"r_11a41d1dd7292d559d9bc3a2","clusterId":"c_28006cd2be5bcd6a5ebea40d","slug":"openai-and-anthropic-cut-llm-prices-as-open-weight-models-take-token-share","model":"deepseek-v4-1-flash","headline":"OpenAI and Anthropic Cut LLM Prices as Open-Weight Models Take Token Share","summary":"OpenAI and Anthropic cut LLM usage fees by up to 80% between July and September 2026. On July 30, OpenAI reduced GPT-5.6 Luna input from 1 dollar to 0.20 dollars and output from 6 dollars to 1.20 dollars per 1 million tokens. Anthropic's Opus 5.5, announced September 22, costs 4 dollars input and 20 dollars output. Data scientist Max Woolf points to low switching costs and competition from open-weight models.","whyItMatters":"Vercel's AI Gateway data showing 48.0% of teams changed their most-used model in September suggests price cuts are a response to an inference market where users can move, not a favor to them.","webCardHtml":"\u003cp\u003eAnthropic\u0026#39;s Opus 5.5 carries a cache read fee of 0.20 dollars per 1 million tokens, down 60% from Opus 5, because Anthropic says cache reads make up most of the cost in agent and coding work. OpenAI\u0026#39;s GPT-6.1 Sol, announced September 29, sits at 2 dollars input and 10 dollars output, against 5 and 30 for GPT-5.6 Sol in June.\u003c/p\u003e\u003cp\u003eThe migration numbers come from Vercel\u0026#39;s AI Gateway, which routes traffic across multiple AI models. It recorded 28.6% of teams changing the company behind their main model over the same month, alongside the 48.0% who changed the model itself.\u003c/p\u003e","blueskyPost":"OpenAI's Luna cut took input from 1 dollar to 0.20 and output from 6 to 1.20. Max Woolf points to low switching costs, so the price war is really about keeping developers from leaving, not winning new ones.","twitterPost":"OpenAI cut Luna output from 6 dollars to 1.20. Low switching costs, per Max Woolf, make retention the actual target, not new signups.","threadsPost":"OpenAI dropped Luna input from 1 dollar to 0.20 and output from 6 to 1.20 in July. Anthropic's Opus 5.5 followed at 4 and 20. Max Woolf ties both to low switching costs, which puts the emphasis on keeping existing developers rather than recruiting new ones.","newsletterBlurb":"OpenAI and Anthropic both cut LLM prices between July and September 2026, with GPT-5.6 Luna down 80% and Opus 5.5 cheaper on input, output, and cache reads. Vercel's AI Gateway recorded 48.0% of teams changing their most-used model in September. Data scientist Max Woolf ties the cuts to low switching costs and open-weight competition.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20261029-openai-anthropic-llm-price-cuts/\",\"title\":\"Why did OpenAI and Anthropic cut LLM prices one after another from summer to fall 2026?\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5393,"outputTokens":863,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1793224169,"createdAt":"2026-10-28T21:43:48.000Z","publishedAt":"2026-10-28T21:48:25.000Z","updatedAt":"2026-10-28T21:48:25.000Z"},"cluster":{"id":"c_28006cd2be5bcd6a5ebea40d","canonicalTitle":"OpenAIとAnthropicが2026年夏から秋にかけてLLM料金を相次いで値下げした理由とは？","representativeArticleId":"a_f15f4ace33188ea24ae77395","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[\"Anthropic\"],\"people\":[\"Max Woolf\"],\"type\":\"news\",\"domain\":\"industry\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-28T21:00:00.000Z","lastSeenAt":"2026-10-28T21:00:00.000Z","updatedAt":"2026-10-28T21:48:25.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20261029-openai-anthropic-llm-price-cuts/","title":"OpenAIとAnthropicが2026年夏から秋にかけてLLM料金を相次いで値下げした理由とは？"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":["Anthropic"],"people":["Max Woolf"],"type":"news","domain":"industry","is_roundup":false},"keyFacts":["OpenAI cut GPT-5.6 Luna prices on July 30, 2026, from 1 dollar to 0.20 dollars input and 6 dollars to 1.20 dollars output per 1 million tokens.","Opus 5.5's cache read fee is 0.20 dollars per 1 million tokens, a 60% cut from Opus 5.","At Vercel's AI Gateway, 48.0% of teams changed their most-used model during September, and 28.6% changed the company behind it.","Data scientist Max Woolf points to low switching costs and open-weight models as reasons for the price cuts."],"pageLinks":{"healthSlugs":["anthropic","max-woolf"],"storySlugs":[],"entities":[{"slug":"anthropic","supported":14,"disputed":0,"contradicted":0,"unverified":38,"overall":"green","story_count":34,"has_dossier":true},{"slug":"max-woolf","supported":0,"disputed":0,"contradicted":0,"unverified":0,"overall":"unverified","story_count":1,"has_dossier":false}],"stories":[],"entitiesOk":true,"storiesOk":true}}