{
  "id": 9217604,
  "title": "Anthropic releases Claude Opus 5.5 and OpenAI counters with two cheaper GPT-6 models",
  "url": "https://urgent.news/2026/09/22/anthropic-releases-claude-opus-5-5-and-openai-counters-with-two",
  "topic": "ai",
  "section": "AI",
  "published": "2026-09-22T22:58:13.000Z",
  "source": {
    "name": "SiliconANGLE",
    "slug": "siliconangle",
    "url": "https://siliconangle.com/2026/09/22/anthropic-releases-claude-opus-5-5-and-openai-counters-with-two-cheaper-gpt-6-models/"
  },
  "original_language": "en",
  "account": "Anthropic introduced Claude Opus 5.5 and reduced its price by 20%, whereas OpenAI announced two new GPT-6 models, Sol and Luna, priced at half the cost of their predecessors. Opus 5.5 cost $4 per million tokens and $20 for output, resulting in a 40% decrease in cost compared to Opus 5. Cache reads dropped by 60%, to $0.20, and faster serving mode was priced at $8 for input and $40 for output. OpenAI halved the price of both new models, with Sol at $2 per million input tokens and $10 per million output, and Luna at $0.10 and $0.50. Anthropic claimed Opus 5.5 matched its Fable 5.1 model on most tasks, and the new model showed 40% faster output generation and 40% higher task completion in AutomationBench. On scientific research, Opus 5.5 scored 58.7% compared to Opus 5's 29%, and on GDPval-AA v2.1, it achieved 1846 Elo points, 46 points ahead of Opus 5. Both models are accessible through various platforms, with Opus 5.5 also available as claude-opus-5-5 on the Claude Developer Platform and through AWS, Google Cloud, and Azure.",
  "summary": "Despite rampant worries about runaway artificial intelligence, the two big AI model makers aren’t yet slowing down: Anthropic PBC released Claude Opus 5.5 today and cut its price 20%, and minutes later OpenAI Group PBC put out two new GPT-6 models, Sol and Luna, at half what their predecessors cost. Input on Opus 5.5 costs […] The post Anthropic releases Claude Opus 5.5 and OpenAI counters with…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 6,
    "also_reported_by": [
      {
        "outlet": "Techmeme",
        "title": "OpenAI says it plans to let third-party groups conduct technical safety evaluations of its AI models during the training, evaluation, and deployment phases (Rachel Metz/Bloomberg)",
        "url": "https://urgent.news/2026/09/22/openai-says-it-plans-to-let-third-party-groups-conduct-technical",
        "published": "2026-09-22T17:30:00.000Z"
      },
      {
        "outlet": "Fortune",
        "title": "What AI slowdown? OpenAI, Anthropic release dueling models as price wars heat up",
        "url": "https://urgent.news/2026/09/22/what-ai-slowdown-openai-anthropic-release-dueling-models-as-price",
        "published": "2026-09-22T18:00:00.000Z"
      },
      {
        "outlet": "CNBC Technology",
        "title": "Anthropic and OpenAI roll out cheaper models in first release since call for slowdown",
        "url": "https://urgent.news/2026/09/22/anthropic-and-openai-roll-out-cheaper-models-in-first-release-since",
        "published": "2026-09-22T18:28:28.000Z"
      },
      {
        "outlet": "CBS News",
        "title": "3 guys hacked OpenAI using a rival Anthropic model. Here's what to know.",
        "url": "https://urgent.news/2026/09/22/3-guys-hacked-openai-using-a-rival-anthropic-model-heres-what-to-know",
        "published": "2026-09-22T18:53:00.000Z"
      },
      {
        "outlet": "Free Malaysia Today",
        "title": "Anthropic, OpenAI release cheaper AI even as safety fears grow",
        "url": "https://urgent.news/2026/09/22/anthropic-openai-release-cheaper-ai-even-as-safety-fears-grow",
        "published": "2026-09-22T22:07:00.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}