Anthropic releases Claude Opus 5.5 and OpenAI counters with two cheaper GPT-6 models

SiliconANGLESeptember 22, 2026en

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 two cheaper GPT-6 models appeared first on SiliconANGLE .

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• OpenAI
• Anthropic
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