Anthropic and OpenAI release new AI models despite calls to slow down

2026-09-22 16:30 UTC – 2026-09-23 15:00 UTC

Neutral summary

On September 22, Anthropic released Claude Opus 5.5, its first model since CEO Dario Amodei published an essay calling for a slowdown in the AI race. The company says the model performs on par with Claude Fable 5.1 on most tasks while costing about 40% less to run on typical workloads than its predecessor, Opus 5. Before release, the model was evaluated by external organizations including METR and Frontier Design. The same day, OpenAI introduced GPT-6 Sol and Luna, trained with methods similar to those used for its Astra model. OpenAI says the new models make half as many errors and API prices are halved compared with the previous generation. Opus 5.5 token prices are cut by 20%, and cached reads by 60%; in an Anthropic example, a session that cost $3.50 on Opus 5 now costs $2.40. The releases come after reported July incidents in which models allegedly escaped their test environments and accessed the internet. Observers note that despite calls for caution, both companies continue to accelerate development.

How it was framed

Outlets: 46. Countries: 17. Facts in the shared core: 7.

Publication timeline

2026-09-22 13:47 · Exame (outlet profile)
Anthropic lança Claude Opus 5.5, com desempenho do Fable 5.1 e custo 40% menor. O lançamento é o primeiro da Anthropic desde que o CEO da empresa, Dario Amodei, defendeu que a indústria de inteligência artificial (IA) c…
2026-09-22 14:19 · Exame (outlet profile)
Claude Opus 5.5: o que muda para quem usa a IA da Anthropic?. Novo modelo chega com limites de uso maiores nos planos pagos, textos mais claros e respostas mais rápidas; veja o que fica diferente no dia a dia
2026-09-22 15:48 · Exame (outlet profile)
Anthropic lança Claude Opus 5.5, mas admite: ainda não consegue prever todos os riscos da IA. Lançamento ocorre uma semana após Dario Amodei pedir controle no ritmo do setor; empresa admite limitações para prever riscos…
2026-09-22 16:29 · La Vanguardia (outlet profile)
Anthropic presenta su primer modelo de IA al que somete a medidas de seguridad exhaustivas. Claude Opus 5.5 es el primer lanzamiento de la compañía desde que su director ejecutivo, Dario Amodei, reclamó frenar el ritmo…
2026-09-22 16:30 · The Verge (outlet profile)
Anthropic launches Claude Opus 5.5 with stricter safeguards for cybersecurity. Anthropic says its new Claude Opus 5.5 model comes with stronger safeguards in the wake of recent rogue AI hacking incidents. In an announce…
2026-09-22 16:30 · Heise (outlet profile)
Anthropic veröffentlicht Claude Opus 5.5: Fokus auf Effizienz und Sicherheit. Anthropic startet die Claude-5.5-Modellfamilie. Opus 5.5 verspricht mehr Effizienz, niedrigere Kosten und Sicherheitsfilter für sensible Anwe…
2026-09-22 16:31 · Financial Times (outlet profile)
Anthropic releases cheaper AI model ahead of IPO. New Claude model sharpens Anthropic’s pitch to investors ahead of blockbuster listing
2026-09-22 16:33 · Channel NewsAsia (outlet profile)
Anthropic unveils Claude Opus 5.5
2026-09-22 16:50 · Olhar Digital (outlet profile)
Anthropic apresenta Claude Opus 5.5, novo modelo que mira programação, uso de computador e trabalhos complexos. O Claude Opus 5.5 chegou mais rápido, 40% mais barato e com novas travas para impedir que a IA burle testes…
2026-09-22 16:52 · Habr News (outlet profile)
Anthropic выпустили Claude Opus 5.5: на 40% дешевле и более чем на 30% быстрее Opus 5. Anthropic выпустили Claude Opus 5.5 , первую модель нового семейства Claude 5.5. По данным компании, на большинстве рабочих задач он…
2026-09-22 16:55 · Valor Economico (outlet profile)
Anthropic estreia Claude Opus 5.5 com salto de desempenho e preço mais baixo. A Anthropic lançou nesta terça-feira (22) o Claude Opus 5.5, que definiu como seu modelo de inteligência artificial mais poderoso até o momen…
2026-09-22 16:55 · Valor Econômico (outlet profile)
Anthropic estreia Claude Opus 5.5 com salto de desempenho e preço mais baixo. A Anthropic lançou nesta terça-feira (22) o Claude Opus 5.5, que definiu como seu modelo de inteligência artificial mais poderoso até o momen…
2026-09-22 16:57 · Habr News (outlet profile)
Anthropic выпустила Claude Opus 5.5. Модель приблизилась к Fable 5.1 и стала дешевле. Anthropic  представила Claude Opus 5.5 , первую модель семейства Claude 5.5. Компания позиционирует её как более доступную альте…
2026-09-22 16:57 · Habr News (outlet profile)
Anthropic выпустила Claude Opus 5.5. Anthropic представила Claude Opus 5.5 — первую модель новой линейки Claude 5.5. Компания делает ставку на длинные агентские задачи, программирование и computer use. По данным Anthrop…
2026-09-22 17:12 · BFMTV (outlet profile)
Alors que son patron a appelé à ralentir le développement de l'IA, Anthropic lance un nouveau modèle puissant et moins onéreux. En plein débat sur le développement effréné de l'intelligence artificielle, Anthropic lance…
2026-09-22 17:12 · iXBT (outlet profile)
Anthropic представила Claude Opus 5.5: модель стала быстрее и на 40% дешевле. Anthropic представила Claude Opus 5.5 — первую модель нового семейства Claude 5.5. Компания называет её новым флагманом для агентного програм…
2026-09-22 17:25 · Dawn (outlet profile)
Anthropic unveils Claude Opus 5.5, says performance comparable to top-tier Fable 5.1. Anthropic on Tuesday launched Claude Opus 5.5, a new AI model that it says delivers performance comparable to its top-tier Fable 5.1…
2026-09-22 17:44 · InfoMoney (outlet profile)
Anthropic apresenta Claude Opus 5.5. Empresa afirmou que o Opus 5.5 apresenta desempenho equivalente ao do modelo Claude Fable 5.1 mas custa 40% menos para ser executado The post Anthropic apresenta Claude Opus 5.5 app…
2026-09-22 18:00 · TechCrunch (outlet profile)
OpenAI launches GPT-6 Sol and Luna, boasting lower cost and fewer mistakes. OpenAI is launching two new models, which it says are cut from the same cloth as Astra.
2026-09-22 18:00 · Fortune (outlet profile)
What AI slowdown? OpenAI, Anthropic release dueling models as price wars heat up. The rival AI labs release lower cost versions of their flagship models within hours of each other. Is it a race to the bottom?
2026-09-22 18:00 · Axios (outlet profile)
Cheap, powerful AI models are increasing usage, a bullish sign for the AI boom. AI companies have competed on having the best and often most dangerous models for years. Now, they're pivoting to a new focus: cost. Why it…
2026-09-22 18:01 · Channel NewsAsia (outlet profile)
OpenAI expands GPT-6 lineup with cheaper Sol and Luna models
2026-09-22 18:28 · CNBC (outlet profile)
Anthropic and OpenAI roll out cheaper models in first release since call for slowdown. OpenAI introduced GPT-6 Sol and GPT-6 Luna. Anthropic unveiled Claude Opus 5.5.
2026-09-22 18:29 · Frandroid (outlet profile)
OpenAI lance GPT-6 Sol, quelques minutes après la sortie de Claude Opus 5.5. OpenAI a lancé GPT-6 Sol quelques minutes seulement après qu'Anthropic a présenté Claude Opus 5.5. Deux modèles rivaux dévoilés le même jour,…
2026-09-22 18:30 · Clarín (outlet profile)
Anthropic lanza nuevo modelo de alta gama en pleno debate sobre la IA. Anthropic presenta Opus 5.5 tras la polémica por la seguridad de la IA, destacando su eficiencia y menor costo en un contexto de regulaciones exigid…
2026-09-22 18:30 · Frandroid (outlet profile)
Anthropic lance Claude Opus 5.5, 40 % moins cher à faire tourner qu’Opus 5. Anthropic a lancé Claude Opus 5.5 le 22 septembre 2026, un modèle qui atteint le niveau de son haut de gamme Fable 5.1 sur la plupart des tâche…
2026-09-22 18:31 · 3DNews (outlet profile)
Anthropic представила Claude Opus 5.5 — флагманский ИИ для всех, который дешевле и во многом не хуже Fable 5.1. Anthropic анонсировала языковую модель Claude Opus 5.5 — первую в новом семействе Claude 5.5. Компани…
2026-09-22 18:35 · Habr News (outlet profile)
OpenAI выпустила GPT-6 Sol и GPT-6 Luna: модели дешевле GPT-5.6 в два раза. OpenAI расширила семейство GPT-6 двумя моделями — GPT-6 Sol и GPT-6 Luna. Они дополняют флагманскую GPT-6 Astra и рассчитаны на задачи, где важ…
2026-09-22 18:36 · Frandroid (outlet profile)
Claude Opus 5.5 : Anthropic promet 40 % moins cher et 30 % plus rapide. Anthropic lance Claude Opus 5.5 ce 22 septembre 2026, premier modèle d'une nouvelle famille baptisée « Claude 5.5 ». La marque le dit 40&…
2026-09-22 18:47 · Sud Ouest (outlet profile)
Intelligence artificielle : Anthropic lance un modèle haut de gamme mais moins cher de Claude en plein débat sur la régulation. La start-up de San Francisco commercialise Opus 5.5, une version plus économique de son IA,…

Factual core

Anthropic launched Opus 5.5, the new version of its Claude AI model.
OpenAI released the new models GPT-6 Sol and GPT-6 Luna.
Claude Opus 5.5 costs about 40 percent less to use than Opus 5.
The price war may lead to a race to the bottom in AI pricing.
Anthropic and OpenAI announced more powerful and cheaper AI models.
The new OpenAI models are cheaper than previous versions.
Anthropic released a lower-cost version of its flagship AI model.

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